Station Overview Station Location
Station Number CO-AR-358 Latitude 39.59902
Station Name Centennial 6.9 E Longitude -104.73757
County Arapahoe Elevation (ft) 5864



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 17 1.33 0.20 30 0.20 22 0.00 8 0 4 0 1.0 1 1
Nov 17 1.04 0.28 29 0.26 24 0.02 5 1 3 1 0.7 2 0
Dec 17 0.73 0.19 31 0.19 31 0.00 0 0 3 1 3.1 3 2
Jan 18 0.60 0.59 20 0.59 20 0.00 0 0 4 0 0.4 2 2
Feb 18 0.62 0.46 24 0.46 24 0.00 0 0 5 1 5.7 4 6
March 18 1.54 2.18 31 2.18 31 0.00 0 0 4 1 16.1 3 3
April 18 2.28 0.91 29 0.91 29 0.00 0 0 9 0 4.3 3 2
May 18 2.50 2.21 31 1.53 15 0.68 16 1 5 1 0.0 0 0
June 18 2.16 1.10 30 1.10 30 0.00 0 0 8 0 0.0 0 0
July 18 2.44 4.55 31 1.72 27 2.83 4 1 10 1 0.0 0 0
Aug 18 2.50 0.58 31 0.01 10 0.57 21 1 1 0 0.0 0 0
Sept 18 1.37 0.26 30 0.26 30 0.00 0 0 4 0 0.0 0 0
Water Year Totals: 19.11" 13.51" 347 days 9.41" 293 4.10" 54 days 4 60 days 6 days 31.3" 18 days 16 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2017 0.03
10/2/2017 0.01
10/3/2017 0.11
10/4/2017 0.00
10/5/2017 0.00
10/6/2017 0.05
10/7/2017 0.00
10/8/2017 0.00
10/9/2017 M
10/10/2017 0.00
10/11/2017 0.00
10/12/2017 0.00
10/13/2017 0.00
10/14/2017 0.00
10/15/2017 0.00
10/16/2017 0.00
10/17/2017 0.00
10/18/2017 0.00
10/19/2017 0.00
10/20/2017 0.00
10/21/2017 0.00
10/22/2017 0.00
10/23/2017 0.00
10/24/2017 **
10/25/2017 **
10/26/2017 **
10/27/2017 **
10/28/2017 **
10/29/2017 **
10/30/2017 **
10/31/2017 **
11/1/2017 **
11/2/2017 **
11/3/2017 **
11/4/2017 **
11/5/2017 0.02
11/6/2017 0.00
11/7/2017 0.02
11/8/2017 T
11/9/2017
11/10/2017 0.00
11/11/2017 0.00
11/12/2017 0.00
11/13/2017 0.00
11/14/2017 0.00
11/15/2017 0.00
11/16/2017 0.00
11/17/2017 0.00
11/18/2017 0.23
11/19/2017 0.00
11/20/2017 0.00
11/21/2017 0.00
11/22/2017 0.01
11/23/2017 0.00
11/24/2017 0.00
11/25/2017 0.00
11/26/2017 0.00
11/27/2017 0.00
11/28/2017 0.00
11/29/2017 0.00
11/30/2017 0.00
12/1/2017 0.00
12/2/2017 0.00
12/3/2017 0.00
12/4/2017 0.00
12/5/2017 0.00
12/6/2017 0.00
12/7/2017 0.00
12/8/2017 0.00
12/9/2017 0.00
12/10/2017 0.00
12/11/2017 0.00
12/12/2017 0.00
12/13/2017 0.00
12/14/2017 0.09
12/15/2017 0.00
12/16/2017 0.00
12/17/2017 0.00
12/18/2017 0.00
12/19/2017 0.00
12/20/2017 0.00
12/21/2017 T
12/22/2017 0.03
12/23/2017 0.00
12/24/2017 0.07
12/25/2017 0.00
12/26/2017 0.00
12/27/2017 0.00
12/28/2017 0.00
12/29/2017 0.00
12/30/2017 0.00
12/31/2017 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2018 0.00
1/2/2018 0.00
1/3/2018 0.00
1/4/2018 0.00
1/5/2018 0.00
1/6/2018 0.00
1/7/2018 0.00
1/8/2018 0.00
1/9/2018 0.00
1/10/2018 0.00
1/11/2018 0.26
1/12/2018 0.00
1/13/2018 0.00
1/14/2018 0.00
1/15/2018 0.01
1/16/2018 0.02
1/17/2018 0.00
1/18/2018 0.00
1/19/2018 0.00
1/20/2018
1/21/2018 0.30
1/22/2018
1/23/2018
1/24/2018
1/25/2018
1/26/2018
1/27/2018
1/28/2018
1/29/2018
1/30/2018
1/31/2018
2/1/2018
2/2/2018
2/3/2018 0.00
2/4/2018 T
2/5/2018 0.00
2/6/2018 0.00
2/7/2018 0.00
2/8/2018 0.00
2/9/2018 0.00
2/10/2018 0.00
2/11/2018 0.17
2/12/2018 0.00
2/13/2018 0.00
2/14/2018 0.00
2/15/2018 0.00
2/16/2018 0.08
2/17/2018 0.00
2/18/2018 0.00
2/19/2018 0.01
2/20/2018 0.16
2/21/2018 0.00
2/22/2018 0.00
2/23/2018 0.04
2/24/2018
2/25/2018
2/26/2018 0.00
2/27/2018 0.00
2/28/2018 0.00
3/1/2018 0.00
3/2/2018 0.00
3/3/2018 0.00
3/4/2018 0.00
3/5/2018 0.00
3/6/2018 0.00
3/7/2018 0.00
3/8/2018 0.00
3/9/2018 0.00
3/10/2018 0.00
3/11/2018 0.00
3/12/2018 0.00
3/13/2018 0.00
3/14/2018 0.00
3/15/2018 0.00
3/16/2018 0.01
3/17/2018 0.00
3/18/2018 0.00
3/19/2018 0.72
3/20/2018 0.00
3/21/2018 0.00
3/22/2018 0.00
3/23/2018 0.00
3/24/2018 0.00
3/25/2018 0.00
3/26/2018 0.00
3/27/2018 1.12
3/28/2018 0.00
3/29/2018 0.33
3/30/2018 T
3/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.00
4/2/2018 0.00
4/3/2018 0.00
4/4/2018 0.00
4/5/2018 0.00
4/6/2018 0.00
4/7/2018 0.02
4/8/2018 0.02
4/9/2018 0.09
4/10/2018 0.03
4/11/2018 0.00
4/12/2018 0.00
4/13/2018 0.36
4/14/2018 0.00
4/15/2018 0.00
4/16/2018
4/17/2018 0.00
4/18/2018 0.00
4/19/2018 0.00
4/20/2018 0.00
4/21/2018 0.09
4/22/2018 0.15
4/23/2018 0.00
4/24/2018 0.06
4/25/2018 0.09
4/26/2018 0.00
4/27/2018 0.00
4/28/2018 0.00
4/29/2018 0.00
4/30/2018 0.00
5/1/2018 0.00
5/2/2018 0.00
5/3/2018 0.79
5/4/2018 0.40
5/5/2018 0.00
5/6/2018 0.00
5/7/2018 **
5/8/2018 **
5/9/2018 **
5/10/2018 **
5/11/2018 **
5/12/2018 **
5/13/2018 **
5/14/2018 **
5/15/2018 **
5/16/2018 **
5/17/2018 **
5/18/2018 **
5/19/2018 **
5/20/2018 **
5/21/2018 **
5/22/2018 0.00 0.68
5/23/2018 0.12
5/24/2018
5/25/2018 0.00
5/26/2018 0.00
5/27/2018 0.00
5/28/2018 T
5/29/2018 0.21
5/30/2018 0.00
5/31/2018 0.01
6/1/2018 0.00
6/2/2018 0.00
6/3/2018 0.00
6/4/2018 0.00
6/5/2018 0.00
6/6/2018 0.00
6/7/2018 0.05
6/8/2018 0.01
6/9/2018 0.00
6/10/2018 0.00
6/11/2018 0.00
6/12/2018 0.00
6/13/2018 0.00
6/14/2018 0.00
6/15/2018 0.00
6/16/2018 0.02
6/17/2018 0.03
6/18/2018 0.67
6/19/2018 0.02
6/20/2018 0.04
6/21/2018 0.00
6/22/2018 0.00
6/23/2018 0.00
6/24/2018 0.00
6/25/2018 0.26
6/26/2018 0.00
6/27/2018 0.00
6/28/2018 0.00
6/29/2018 0.00
6/30/2018 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.03
7/2/2018 0.00
7/3/2018 0.00
7/4/2018 0.00
7/5/2018 0.02
7/6/2018 0.10
7/7/2018 0.00
7/8/2018 0.21
7/9/2018 0.05
7/10/2018 T
7/11/2018 0.00
7/12/2018 0.00
7/13/2018 0.00
7/14/2018 0.00
7/15/2018 M **
7/16/2018 M **
7/17/2018 M 2.83
7/18/2018 0.00
7/19/2018 0.00
7/20/2018 0.00
7/21/2018 0.00
7/22/2018 0.00
7/23/2018 0.07
7/24/2018 0.95
7/25/2018 0.16
7/26/2018 0.12
7/27/2018 0.01
7/28/2018 0.00
7/29/2018 0.00
7/30/2018 0.00
7/31/2018 **
8/1/2018 **
8/2/2018 **
8/3/2018 **
8/4/2018 **
8/5/2018 **
8/6/2018 **
8/7/2018 **
8/8/2018 **
8/9/2018 **
8/10/2018 **
8/11/2018 **
8/12/2018 **
8/13/2018 **
8/14/2018 **
8/15/2018 **
8/16/2018 **
8/17/2018 **
8/18/2018 **
8/19/2018 **
8/20/2018 **
8/21/2018 0.57
8/22/2018 0.01
8/23/2018 0.00
8/24/2018 0.00
8/25/2018 0.00
8/26/2018 0.00
8/27/2018 0.00
8/28/2018 0.00
8/29/2018 0.00
8/30/2018 0.00
8/31/2018 0.00
9/1/2018 0.02
9/2/2018 0.00
9/3/2018 0.00
9/4/2018 0.00
9/5/2018 0.22
9/6/2018 0.01
9/7/2018 0.00
9/8/2018 0.00
9/9/2018 0.00
9/10/2018 0.00
9/11/2018 0.00
9/12/2018 0.00
9/13/2018 0.00
9/14/2018 0.00
9/15/2018 0.00
9/16/2018 0.00
9/17/2018 0.00
9/18/2018 0.00
9/19/2018 0.00
9/20/2018 0.00
9/21/2018 0.00
9/22/2018 0.00
9/23/2018 0.00
9/24/2018 0.00
9/25/2018 0.01
9/26/2018 0.00
9/27/2018 0.00
9/28/2018 0.00
9/29/2018 0.00
9/30/2018 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2017 7:00 AM 0.03 M M M M one brief late afternoon shower
10/2/2017 7:00 AM 0.01 M M M M First heavy snowfall in mountains (2 feet north of I-70 ) but just rain in metro area. More forecast for next two days
10/3/2017 7:00 AM 0.11 M M M M Intense 10 minute downpour at 19;15 on 10/2
10/4/2017 7:00 AM 0.00 0.0 M M M Dry
10/5/2017 7:00 AM 0.00 0.0 M M M fog this morning but going into a dry period. High humidity
10/6/2017 7:00 AM 0.05 M M M M Heavy 10 minute rain about 1700 on 10/5
10/7/2017 7:00 AM 0.00 0.0 M M M dry
10/8/2017 7:00 AM 0.00 0.0 M M M nice warm weather ahead of first major snow storm of the season (arriving tonight)
10/9/2017 7:00 AM M 1.0 M 1.0 M Small rainfall before snow (minor less than one inch accumulated and far less than forecast (edit: daily precipitation initially recorded as 0.03". changed to NA as nearby reports suggest a larger precipitation total. observer will be contacted. PG)
10/10/2017 7:00 AM 0.00 0.0 M M M slow warming after first snow of season.
10/11/2017 7:00 AM 0.00 0.0 M M M dry but cold nights below freezing
10/12/2017 7:00 AM 0.00 0.0 M M M Dry
10/13/2017 7:00 AM 0.00 0.0 M M M dry
10/14/2017 7:00 AM 0.00 0.0 M M M Dry
10/15/2017 7:00 AM 0.00 0.0 M M M dry, very windy (25+ mph) afternoon of 10/14 but sunny and 10 degree drop over 24 hours with passage of cold front
10/16/2017 7:00 AM 0.00 0.0 M M M drying trend for next week with high temps to near 80 degrees
10/17/2017 7:00 AM 0.00 0.0 M M M continued dry with high temps forecast at 75+ degrees and humidity around 30%. No precip until weekend with temp drop
10/18/2017 7:00 AM 0.00 0.0 M M M continued warm and dry
10/19/2017 7:00 AM 0.00 0.0 M M M warm and dry
10/20/2017 7:00 AM 0.00 0.0 M M M very warm and dry, humidity at 41%
10/21/2017 7:00 AM 0.00 0.0 M M M cold front coming through with temp drop of 20 degrees from yesterday, windy but recovering quickly
10/22/2017 7:00 AM 0.00 0.0 M M M dry but warming to mid 70's in afternoon
10/23/2017 7:00 AM 0.00 0.0 M M M cool front coming through with a second + moisture forecast for Thursday 24th. Will be off line for a few days but will send an accumulation then
11/6/2017 7:00 AM 0.00 0.0 M M M Fog in area until mid morning and precip (rain + Snow) forecasted within next 18 hours
11/7/2017 7:00 AM 0.02 M M M M Before icing but no snow accumulation
11/8/2017 7:00 AM T 0.1 0.01 0.0 0.01 Mostly fog with just a trace of snow on ground. Cold at freezing point with little day warming
11/10/2017 7:00 AM 0.00 0.0 M M M frost on ground but no measurable precipitation
11/11/2017 7:00 AM 0.00 0.0 M M M frost on ground but warm, dry
11/12/2017 7:00 AM 0.00 0.0 M M M at freezing temps overnight but dry
11/13/2017 7:00 AM 0.00 0.0 M M M very warm and dry for mid November; very low soil moisture so early winter deep watering of trees is required
11/14/2017 7:00 AM 0.00 0.0 M M M still warm and dry. La Nina has established
11/15/2017 7:00 AM 0.00 0.0 M M M still very warm (10-15 degrees above average) and dry
11/16/2017 7:00 AM 0.00 0.0 M M M warm and dry
11/17/2017 7:00 AM 0.00 0.0 M M M windy with cold front arriving later today - lets see if there is any moisture
11/18/2017 7:00 AM 0.23 0.6 0.23 M M Rain and then snowfall that iced overnight. Snowfall was a hard ice layer this morning so accumulation was ice but the melted value was collected in 4 inch cylinder
11/19/2017 7:00 AM 0.00 0.0 M M M dry but warming temps through this next week
11/20/2017 7:00 AM 0.00 0.0 M M M dry and above average temps (to 70) this week
11/21/2017 7:00 AM 0.00 0.0 M M M cold front coming through with chance of minor precip before warming up over next several days
11/22/2017 7:00 AM 0.01 M M M M Brief rain/ice mix between 7:15 and 7:30 on 11/21
11/23/2017 7:00 AM 0.00 0.0 M M M Thanksgiving Day and all dry and warm - moisture turkey!!
11/24/2017 7:00 AM 0.00 0.0 M M M nothing
11/25/2017 7:00 AM 0.00 0.0 M M M temps to 70+ today and very dry
11/26/2017 7:00 AM 0.00 0.0 M M M two more days of plus 70 degrees before a cold front. Deep watering trees
11/27/2017 7:00 AM 0.00 0.0 M M M one more dry day with record warm temps > 75 degrees. Cold front this evening/ overnight with possibility of precip (???)
11/28/2017 7:00 AM 0.00 0.0 M M M no precip but temps drop by 30 degrees from yesterday when we had a high of 81 degrees (broke old record by 7 degrees)
11/29/2017 7:00 AM 0.00 0.0 M M M dry
11/30/2017 7:00 AM 0.00 0.0 M M M back to warmer temps and continued dry
12/1/2017 7:00 AM 0.00 0.0 M M M continued dry with day temps near 60
12/2/2017 7:00 AM 0.00 0.0 M M M couple more days of mid 60's and no precip
12/3/2017 7:00 AM 0.00 0.0 M M M no precip in forecast
12/4/2017 7:00 AM 0.00 0.0 M M M cold front and windy but no precip
12/5/2017 7:00 AM 0.00 0.0 M M M no precip (2.3 inches of snow in early October) and nothing forecast. Should have 14 inches of snow by now, on average
12/6/2017 7:00 AM 0.00 0.0 M M M nothing
12/7/2017 7:00 AM 0.00 0.0 M M M frost this morning but we are on clockwise part of major High system in western US that is blocking moisture into the Great Lakes on Northeast. Snowblower is feeling lonely
12/8/2017 7:00 AM 0.00 0.0 M M M cold weather last two days but very dry continues, 60 days since last snowfall of 2.8 inches
12/9/2017 7:00 AM 0.00 0.0 M M M warm trend for next two days (to 60 degrees(and remaining dry
12/10/2017 7:00 AM 0.00 0.0 M M M the Big Dry continues with no precip forecasted for at least the next 10 days
12/11/2017 7:00 AM 0.00 0.0 M M M temps in low 60's with jet stream to east - continued dry conditions
12/12/2017 7:00 AM 0.00 0.0 M M M 63 days since last measurable precip and should easily break the old record of 69 days before the last big drought in 2002
12/13/2017 7:00 AM 0.00 0.0 M M M cold front coming that may leave small dusting of snow tonight
12/14/2017 7:00 AM 0.09 1.5 0.09 1.5 M first precip in 65 days
12/15/2017 7:00 AM 0.00 0.0 M M M cold and forecast snow in next 48 hours
12/16/2017 7:00 AM 0.00 0.0 M M M colder temps with snow forecast for tonight
12/17/2017 7:00 AM 0.00 0.0 M M M no precip with cold front - more false expectations from local weather TV forecasters. We need less drama and more fact based reporting
12/18/2017 7:00 AM 0.00 0.0 M M M couple of warm days before the arctic blast at end of week. Now driest (2.8 inches) snowfall year since 1888 (3.5 inches).
12/19/2017 7:00 AM 0.00 0.0 M M M nothing
12/20/2017 7:00 AM 0.00 0.0 M M M last day of 60+ degrees with arctic front moving in tonight and possibility of some snow (?). Could see sub zero temps now but going to be too dry for much snow
12/21/2017 7:00 AM T T 0.01 M M Arctic cold has arrived but little snow accumulation at 7am. Expect some this morning but mostly just cold.
12/22/2017 7:00 AM 0.03 0.2 0.03 M M Light snowfall on morning of 12/21 but cold arctic air has arrived ie low precip potential along Front Range. Some snow in mountains (6 inches) for ski areas and anticipating another shot in next 24 hours. I'd like to dream of a White Christmas
12/23/2017 7:00 AM 0.00 0.0 M M M dry and cold
12/24/2017 7:00 AM 0.07 1.4 0.07 1.4 0.07 Snow started at 5:30 with wind so snow depth is an average of several locations
12/25/2017 7:00 AM 0.00 0.0 M M M Merry Christmas and dry but still an inch or two of snow on ground. We will call it as a "white Christmas)
12/26/2017 7:00 AM 0.00 0.0 M M M Frigid temps and snow flurries around after day break but no accumulation. Hoar frost on trees.
12/27/2017 7:00 AM 0.00 0.0 M M M Slowly warming up from arctic blast (high yesterday was 10 degrees with 80% humidity) but no precip. Forecast to reach mid 40's today
12/28/2017 7:00 AM 0.00 0.0 M M M no precip but warmer weather into 40 degree range
12/29/2017 7:00 AM 0.00 0.0 M M M mild weather but storm forecasted over weekend. Any more precip for 2017??
12/30/2017 7:00 AM 0.00 0.0 M M M dry but cold with arctic blast coming over next several days. Drop from high of 65 degrees yesterday to mid 20's. Too bad we dont get moisture which is badly needed
12/31/2017 7:00 AM 0.00 0.0 M M M cold but no precip to end the year. Its a DRY one
1/1/2018 7:00 AM 0.00 0.0 M M M cold - (below freezing) but no precip
1/2/2018 7:00 AM 0.00 0.0 M M M frost on ground but end of arctic blast and warming temps through weekend> wolf moon last night so second in the trilogy. La Nina has a real grip on our weather patterns
1/3/2018 7:00 AM 0.00 0.0 M M M warming trend (40+ degrees) and dry. Need to water the trees
1/4/2018 7:00 AM 0.00 0.0 M M M continuing high and dry. La Nina
1/5/2018 7:00 AM 0.00 0.0 M M M dry and needing to water ponderosas
1/6/2018 7:00 AM 0.00 0.0 M M M nothing on precip. First News reports on low snowpack and impacts on water supply for 2018 have started
1/7/2018 7:00 AM 0.00 0.0 M M M a few ice crystals in the air but no measurable precip. High temp today close to 50 degrees
1/8/2018 7:00 AM 0.00 0.0 M M M continuing dry with high temps near 60 degrees. Some mountain snow tomorrow night. A BIG drought is coming
1/9/2018 7:00 AM 0.00 0.0 M M M record high temps today in mid 60's but big rainmaker in California working its way here to Colorado. Mountain snows and "maybe" some snow in metro Denver
1/10/2018 7:00 AM 0.00 0.0 M M M possibility of rain late this afternoon as heavy rains move east from California (they have mud slides in burn areas that have killed 15)> Colorado is in major moisture deficit but Southwest part of state and mountains expecting good snowfall
1/11/2018 7:00 AM 0.26 0.1 0.01 0.1 M Rain started at 5pm (most precip) and then changed to light snow by 9pm but everything had cleared by midnight. Freezing temps in late evening
1/12/2018 7:00 AM 0.00 0.0 M M M missed snow showers this morning
1/13/2018 7:00 AM 0.00 0.0 M M M dry period again
1/14/2018 7:00 AM 0.00 0.0 M M M jet stream is to north and east but supposed to back into northeast Colorado later today and bring colder temps and small amount of snow. Today temp > 55 degrees
1/15/2018 7:00 AM 0.01 T 0.01 M 0.01 Cold temps after front came through at 2315 last night but more icing than precip.
1/16/2018 7:00 AM 0.02 0.3 0.02 0.3 0.02 freezing rain followed by very light snow flurries
1/17/2018 7:00 AM 0.00 0.0 M M M dry and warming over next several days
1/18/2018 7:00 AM 0.00 0.0 M M M dry and warm
1/19/2018 7:00 AM 0.00 0.0 M M M high temps today at record 68 degrees but 2-5 inches of snow forecast for Saturday night. Will be off lien for a period but will report multi-day accumulation on return
1/21/2018 7:00 AM 0.30 M M M M synthetic from observed in Thornton so I can get annual and accumulating precip
2/3/2018 7:00 AM 0.00 0.0 M M M back in town - missed two snowfalls but any collected snow had evaporated so not recording those events.
2/4/2018 7:00 AM T M 0.01 M 0.01 very light dusting and 20 degree drop in temps from yesterday as cold front backs in from northeast Colorado
2/5/2018 7:00 AM 0.00 0.0 M M M possibility of snow later this afternoon and later in week. Strong winds continue
2/6/2018 7:00 AM 0.00 0.0 M M M no snow overnight - bad (or drama) weather forecasting from all TV stations
2/7/2018 7:00 AM 0.00 0.0 M M M dry and warm - front coming through at weekend that "may" produce measurable snow
2/8/2018 7:00 AM 0.00 0.0 M M M La nina is still alive and well
2/9/2018 7:00 AM 0.00 0.0 M M M projecting a small snowfall tonight
2/10/2018 7:00 AM 0.00 0.0 M M M some freezing but nothing measurable - supposed to get snow later in day
2/11/2018 7:00 AM 0.17 3.5 0.17 3.5 0.17 Snowfall began at 1200 through 1700 yesterday
2/12/2018 7:00 AM 0.00 0.0 M M M cold temps and freezing fog but no measurable precip
2/13/2018 7:00 AM 0.00 0.0 M M M dry but subfreezing temps
2/14/2018 7:00 AM 0.00 0.0 M M M dry
2/15/2018 7:00 AM 0.00 0.0 M M M colder with fronts coming but no snow
2/16/2018 7:00 AM 0.08 1.5 0.08 1.5 0.08
2/17/2018 7:00 AM 0.00 0.0 M M M drying but expect snow next monday and tuesday
2/18/2018 7:00 AM 0.00 0.0 M M M dry and windy ahead of cold front from northwest. Expecting snow tomorrow afternoon
2/19/2018 7:00 AM 0.01 0.2 0.01 0.2 0.01 intense low pressure currently over S Nevada will track eastwards and could cause upslope this evening with 2-5 inches of snow forecasted. Drop of 50 degrees from yesterday to low 20's.
2/20/2018 7:00 AM 0.16 M M 3.3 0.16 Snow fell overnight with temps falling below 10 degrees. Storm has moved out now with slow warming trend to mid 40's by end of week
2/21/2018 7:00 AM 0.00 0.0 M 0.5 0.01 slow warming trend
2/22/2018 7:00 AM 0.00 0.0 M T M Still below freezing in morning but getting in to 40 and 50 in afternoon. Some snow on ground but nothing new
2/23/2018 7:00 AM 0.04 0.5 0.04 0.5 0.04 Snow fell at 1600 - 2100 last night. Fog this morning
2/26/2018 7:00 AM 0.00 0.0 M M M warming trend
2/27/2018 7:00 AM 0.00 0.0 M M M
2/28/2018 7:00 AM 0.00 0.0 M M M warming to mid 50's but snow with a limited front coming tonight. Nominal snow expected
3/1/2018 7:00 AM 0.00 0.0 M M M whatever snow may have been passing through Colorado stayed away from this station.Time to water trees again as temps into 60's forecasted for the weekend
3/2/2018 7:00 AM 0.00 0.0 M M M warm, dry and windy
3/3/2018 7:00 AM 0.00 0.0 M M M warm (mid 60's) and dry with fire danger warnings in southeast
3/4/2018 7:00 AM 0.00 0.0 M M M high 60 temps so La Nina winter is confirmed. The lack of moisture along the Front Range Colorado is going to be a major problem this year for water providers
3/5/2018 7:00 AM 0.00 0.0 M M M cold front but no precip, dry and windy > 50 mph. High fire danger
3/6/2018 7:00 AM 0.00 0.0 M M M winds have stopped but pure blue skies - no precipitation
3/7/2018 7:00 AM 0.00 0.0 M M M warm temps for next several days and wind has stopped.
3/8/2018 7:00 AM 0.00 0.0 M M M warm and dry. Another nor-easter in the Northeast (go figure) but La Nina has a firm grip on western states. Prepare for a summer of water restrictions and wildfires
3/9/2018 7:00 AM 0.00 0.0 M M M warm and dry
3/10/2018 7:00 AM 0.00 0.0 M M M no precip
3/11/2018 7:00 AM 0.00 0.0 M M M dry with warming trend from current 50 to 70 by Thursday. Statewide snowpack at 68% average. Any more snow this winter? Day light savings start today
3/12/2018 7:00 AM 0.00 0.0 M M M dry and increasing warmth through what is historically our snowiest month. No wind
3/13/2018 7:00 AM 0.00 0.0 M M M warming trend and continuing dry
3/14/2018 7:00 AM 0.00 0.0 M M M high above 70 degrees today but may get light rain at end of week.
3/15/2018 7:00 AM 0.00 0.0 M M M expecting mountain snows with front coming from west - may be light precip here in Denver metro area. Lawn watering yesterday
3/16/2018 7:00 AM 0.01 M M M M No precip in southeast metro area although heavier rain to west and 10 inches of snow at elevation. Storm moved out at midnight
3/17/2018 7:00 AM 0.00 0.0 M M M warm and windy
3/18/2018 7:00 AM 0.00 0.0 M M M supposed to get some rain and light snow tonight
3/19/2018 7:00 AM 0.72 6.6 0.71 6.6 0.71 Rain turned to snow around 1800 with accumaultion until early morning.
3/20/2018 7:00 AM 0.00 0.0 M 2.0 0.22 storm has left state to east. warming trend
3/21/2018 7:00 AM 0.00 0.0 M M M warming trend. Some snow in shadows but could reach 70's for day time high
3/22/2018 7:00 AM 0.00 0.0 M M M dry and warm - must be spring
3/23/2018 7:00 AM 0.00 0.0 M M M warm and dry. Temps are about two months ahead of normal ranges
3/24/2018 7:00 AM 0.00 0.0 M M M California storm working its way towards us - maybe 48 hours away
3/25/2018 7:00 AM 0.00 0.0 M M M high and dry
3/26/2018 7:00 AM 0.00 0.0 M M M forecast of rain and snow this afternoon
3/27/2018 7:00 AM 1.12 6.0 1.00 6.0 M Rain of 0.12 inches between 1800 and 2100 and then 6inches of very wet snow. Done by early morning today
3/28/2018 7:00 AM 0.00 0.0 M M M dry, anoher cold front on way
3/29/2018 7:00 AM 0.33 3.5 0.33 M M Snow started at 1600 and fell steadily until early today
3/30/2018 7:00 AM T M M M M trace of snow from light snowfall late afternoon
3/31/2018 7:00 AM 0.00 0.0 M M M warming into 60's and trees ready to bud out - early
4/1/2018 7:00 AM 0.00 0.0 M M M no April Fool - NO rain
4/2/2018 7:00 AM 0.00 0.0 M M M warm and dry
4/3/2018 7:00 AM 0.00 0.0 M M M cold front and windy but no precip until end of week
4/4/2018 7:00 AM 0.00 0.0 M M M warm and dry
4/5/2018 7:00 AM 0.00 0.0 M M M high 60's but rain/ snow and temps in low 40's on Friday - opening day of MLB in Denver
4/6/2018 7:00 AM 0.00 0.0 M M M dry but forecasts are predicting moisture over next 24 hours
4/7/2018 7:00 AM 0.02 T 0.02 T 0.02 light snow yesterday and drop of 30 degrees
4/8/2018 7:00 AM 0.02 M M M M light rain in early morning hours but clouds have cleared by 8am
4/9/2018 7:00 AM 0.09 M M M M overnight rainfall - expect some snow showers on Monday morning
4/10/2018 7:00 AM 0.03 M M M M final stages of yesterday morning precip - done by 9:30am and then start of warming cycle. Mostly a wet snow
4/11/2018 7:00 AM 0.00 0.0 M M M very warm today with fire danger posted
4/12/2018 7:00 AM 0.00 0.0 M M M dry
4/13/2018 7:00 AM 0.36 2.0 0.36 2.0 0.36 heavy wet snow around midnight
4/14/2018 7:00 AM 0.00 0.0 M M M dry but cold winds again today
4/15/2018 7:00 AM 0.00 0.0 M M M dry and warming
4/17/2018 7:00 AM 0.00 0.0 M M M very windy (>65 mph) as cold front moves through. Dry
4/18/2018 7:00 AM 0.00 0.0 M M M dry and a great relief not to have yesterday's hurricane force winds. Many wildfires. Cold front has moved to east
4/19/2018 7:00 AM 0.00 0.0 M M M continuing winds and dry conditions - fire danger on Colorado Eastern plains
4/20/2018 7:00 AM 0.00 0.0 M M M dry but mountain snow and forecasted precip in Denver area this evening turning to snow overnight
4/21/2018 7:00 AM 0.09 1.3 0.03 M M Had rainfall starting mid afternoon yesterday with 0.02 " by 6pm , turned over to snow overnight with 1.3" on ground
4/22/2018 7:00 AM 0.15 M M M M continued raining through 5pm but now drying and warming
4/23/2018 7:00 AM 0.00 0.0 M M M dry and warm
4/24/2018 7:00 AM 0.06 1.0 0.04 1.0 0.04 rain and then light snow in early hours of this morning - expect to continue some precip this morning before a drying trend
4/25/2018 7:00 AM 0.09 M M M M Precip from light snow through yesterday morning and afternoon - done by evening; no accumulation - warming now
4/26/2018 7:00 AM 0.00 0.0 M M M
4/27/2018 7:00 AM 0.00 0.0 M M M temps into 80's today
4/28/2018 7:00 AM 0.00 0.0 M M M high temps towards 80 and dry
4/29/2018 7:00 AM 0.00 0.0 M M M warm to 80 degrees and dry
4/30/2018 7:00 AM 0.00 0.0 M M M warm and dry
5/1/2018 7:00 AM 0.00 0.0 M M M temps drop from 80's to 50's with rain forecast for tomorrow
5/2/2018 7:00 AM 0.00 0.0 M M M expecting heavy rain over next 36 hours. Rain starting 0730 today
5/3/2018 7:00 AM 0.79 M M M M Heavy rainfall yesterday afternoon and continuing but declining this morning with storm out of Front Range by early afternoon. Precip is WELCOME!Heavier amounts to west at high elevations and snow > 7000 feet
5/4/2018 7:00 AM 0.40 M M M M Storm has moved east and now drying and warming
5/5/2018 7:00 AM 0.00 0.0 M M M warm and dry
5/6/2018 7:00 AM 0.00 0.0 M M M warm and dry
5/22/2018 7:00 AM 0.00 0.0 M M M
5/23/2018 7:00 AM 0.12 M M M M short downpour with local storms around 5-6pm then 0.11" rain at around 10pm
5/25/2018 7:00 AM 0.00 0.0 M M M hot and dry
5/26/2018 7:00 AM 0.00 0.0 M M M close to record high temps around 80 degrees - no precip
5/27/2018 7:00 AM 0.00 0.0 M M M Add 0.68 inches accumulated total while out of town. Last two days temps > 90 degrees but more seasonable 80 today. Winds in afternoon and fire danger
5/28/2018 7:00 AM T M M M M Memorial Day - overcast with Plains thunderstorms forecast
5/29/2018 7:00 AM 0.21 M M M M Heavy thunderstorms on afternoon of 5/28. all precip done by 5pm
5/30/2018 7:00 AM 0.00 0.0 M M M dry and warming
5/31/2018 7:00 AM 0.01 M M M M Late evening shower
6/1/2018 7:00 AM 0.00 0.0 M M M temps near record at 92 degrees yesterday and same today before a cooling trend over weekend
6/2/2018 7:00 AM 0.00 0.0 M M M high temps in 70's today after several 90+. Welcome
6/3/2018 7:00 AM 0.00 0.0 M M M cool front again today before temps> 90 later in week.
6/4/2018 7:00 AM 0.00 0.0 M M M temps > 90 all week. More like mid July weather
6/5/2018 7:00 AM 0.00 0.0 M M M near record high temps at 95 today. Same for next week
6/6/2018 7:00 AM 0.00 0.0 M M M continuing hot and dry
6/7/2018 7:00 AM 0.05 M M M M Downburst thunderstorm at 9pm for about 20 minutes
6/8/2018 7:00 AM 0.01 M M M M Calm after high winds yesterday. Temps to mid 90's today again and forecast for the next several days. Humidity yesterday was 10-15%
6/9/2018 7:00 AM 0.00 0.0 M M M temps to 95 and high fire danger
6/10/2018 7:00 AM 0.00 0.0 M M M highs to 95+ with lots of smoke from southwest fires.Cooling trend forecast for coming week
6/11/2018 7:00 AM 0.00 0.0 M M M temps cooling down to mid 80's today but returning to high 90's in a couple of days. Exceptional drought in Southwest Colorado, major wildfires and windy. Humidity <20%
6/12/2018 7:00 AM 0.00 0.0 M M M dry and warming over next few days. Hurricane on Baja California may bring moisture at weekend
6/13/2018 7:00 AM 0.00 0.0 M M M continuing hot to mid 90's for next few days
6/14/2018 7:00 AM 0.00 0.0 M M M temps to 97 degrees today before a cooling trend. Ma be some afternoon thunderstorms so possibility of some precip at last
6/15/2018 7:00 AM 0.00 0.0 M M M cooler for next few days (mid 80's - with remnants of Hurricane Bud bringing moisture from southwest in 48 hours
6/16/2018 7:00 AM 0.02 M M M M brief rain squall mid afternoon yesterday.
6/17/2018 7:00 AM 0.03 M M M M overnight rain and a week of afternoon storms projected
6/18/2018 7:00 AM 0.67 M M M M total for 24 hours with 0.32 inches yesterday afternoon before 5pm then rest overnight. Cool temps in mid-70's this week before warming trend. Moisture is welcome and long overdue for June norms
6/19/2018 7:00 AM 0.02 M M M M Hail to 2 inches north and east of Denver - likely along Front Range again today
6/20/2018 7:00 AM 0.04 M M M M golf ball sized hail around 3pm yesterday! Little precip
6/21/2018 7:00 AM 0.00 0.0 M M M dry
6/22/2018 7:00 AM 0.00 0.0 M M M warming and dry
6/23/2018 7:00 AM 0.00 0.0 M M M
6/24/2018 7:00 AM 0.00 0.0 M M M
6/25/2018 7:00 AM 0.26 M M M M 0.1 " around noon and then a second storm late afternoon brought remainder
6/26/2018 7:00 AM 0.00 0.0 M M M no moisture for next several days with temps into high 90's.
6/27/2018 7:00 AM 0.00 0.0 M M M high to 97 degrees with 100 forecasted for Thursday
6/28/2018 7:00 AM 0.00 0.0 M M M record high temps of 103 degrees forecast for today.
6/29/2018 7:00 AM 0.00 0.0 M M M temps down to mid 90's today and maybe low 80's tomorrow - dry
6/30/2018 7:00 AM 0.00 0.0 M M M cooler today at 80 degrees but forecasting a return to dry and hot next week
7/1/2018 7:00 AM 0.03 M M M M Late afternoon storm
7/2/2018 7:00 AM 0.00 0.0 M M M heating to mid 90's this week and very dry
7/3/2018 7:00 AM 0.00 0.0 M M M hot and dry
7/4/2018 7:00 AM 0.00 0.0 M M M happy fourth - dry so no fireworks here today so we don't get wildfires expanding across the State. Worst since 2002
7/5/2018 7:00 AM 0.02 M M M M short duration downpour around 9pm from storm cell with lots of dry lightning between clouds.
7/6/2018 7:00 AM 0.10 M M M M thunder shower around 5pm
7/7/2018 7:00 AM 0.00 0.0 M M M heating up and dry
7/8/2018 7:00 AM 0.21 M M M M late afternoon thunderstorm gave all precip
7/9/2018 7:00 AM 0.05 M M M M late after noon rain shower
7/10/2018 7:00 AM T M M M M continuing upper 90's and dry
7/11/2018 7:00 AM 0.00 0.0 M M M still in upper 90's but forecasting late afternoon thunderstorms in next few days
7/12/2018 7:00 AM 0.00 0.0 M M M cooling to mid 80's with monsoon chance of afternoon thunderstorms
7/13/2018 7:00 AM 0.00 0.0 M M M
7/14/2018 7:00 AM 0.00 0.0 M M M mid 80's but monsoon rains not arriving
7/15/2018 7:00 AM M M M M M local high intensity cell of precip (1 in 10 year event about) with high winds, intense rain and surface flooding we haven't seen in many years. {EDIT: Observer reported 2.83 for new precip. Surrounding reports of 0.00's indicate this could be a date error. Changed report of 2.83 to NA until observer can be contacted to verify. Submission Time Before EDIT: 7/18/2018 7:16 AM CoCoSTAFF DNT}
7/16/2018 7:00 AM M 0.0 M M M yesterday flooding from local burst {EDIT: Observer reported 0.00 for new precip. Surrounding reports of 0.98 to 1.28 indicate this could be a date error. Changed report of 0.00 to NA until observer can be contacted to verify. Submission Time Before EDIT: 7/18/2018 7:16 AM CoCoSTAFF DNT}
7/17/2018 7:00 AM M 0.0 M M M drying out after the big cell of high precip and flooding {EDIT: Observer reported 0.00 for new precip. Surrounding reports of 1.05 to 1.28 indicate this could be a date error. Changed report of 0.00 to NA until observer can be contacted to verify. Submission Time Before EDIT: 7/18/2018 7:16 AM CoCoSTAFF DNT}
7/18/2018 7:00 AM 0.00 0.0 M M M drying out and temps back to high 90's
7/19/2018 7:00 AM 0.00 0.0 M M M hot and dry
7/20/2018 7:00 AM 0.00 0.0 M M M one more day of high 90's before monsoon conditions so maybe some late afternoon storms
7/21/2018 7:00 AM 0.00 0.0 M M M dry but temps more moderate in 80's
7/22/2018 7:00 AM 0.00 0.0 M M M one more day of mid 90's
7/23/2018 7:00 AM 0.07 M M M M several brief storm cells with little rain but much puffing
7/24/2018 7:00 AM 0.95 M M M M All rain fell in 20 minute downburst around 5pm. Surface flooding
7/25/2018 7:00 AM 0.16 M M M M Another early evening storm from monsoonal flow
7/26/2018 7:00 AM 0.12 M M M M late afternoon and evening storms
7/27/2018 7:00 AM 0.01 M M M M Surrounded by storm cells but nothing in our path
7/28/2018 7:00 AM 0.00 0.0 M M M fog this morning but burning off with sun
7/29/2018 7:00 AM 0.00 0.0 M M M early morning fog again
7/30/2018 7:00 AM 0.00 0.0 M M M cooler with high temps in upper 70's. Will be off line for several weeks
8/22/2018 7:00 AM 0.01 M M M M Overcast and below seasonal temps - today only mid 70's
8/23/2018 4:00 AM 0.00 0.0 M M M warming trend but no precip
8/24/2018 7:00 AM 0.00 0.0 M M M expecting highs to near 90 degrees. Very smoky from prevailing west winds and over 100 forest fires in Utah, CA etc
8/25/2018 7:00 AM 0.00 0.0 M M M hot and smoky
8/26/2018 7:00 AM 0.00 0.0 M M M hot and dry
8/27/2018 7:00 AM 0.00 0.0 M M M high temps today above 90 but dry
8/28/2018 7:00 AM 0.00 0.0 M M M cool day today with high in mid 70s but warming trend over next few days
8/29/2018 7:00 AM 0.00 0.0 M M M high temps into 90 's return, Dry
8/30/2018 7:00 AM 0.00 0.0 M M M high temps to mid 90's
8/31/2018 7:00 AM 0.00 0.0 M M M
9/1/2018 7:00 AM 0.02 M M M M short rain around 4pm with passing thunder cell
9/2/2018 7:00 AM 0.00 0.0 M M M dry
9/3/2018 7:00 AM 0.00 0.0 M M M dry but cooling trend reducing temps to 70's
9/4/2018 7:00 AM 0.00 0.0 M M M cooling trend with temps in low 70's
9/5/2018 7:00 AM 0.22 M M M M heavy rains around 3am with possible return this afternoon - low 70's but back towards 90 at end of week
9/6/2018 7:00 AM 0.01 M M M M
9/7/2018 7:00 AM 0.00 0.0 M M M
9/8/2018 7:00 AM 0.00 0.0 M M M
9/9/2018 7:00 AM 0.00 0.0 M M M cool morning with temp at 52 but rising to 85 this afternoon.
9/10/2018 7:00 AM 0.00 0.0 M M M low temps at 45 but high near record 90. Hot and dry this week
9/11/2018 7:00 AM 0.00 0.0 M M M continuing record high temps > 90 degrees
9/12/2018 7:00 AM 0.00 0.0 M M M continuing with record high temps >90
9/13/2018 7:00 AM 0.00 0.0 M M M continuing record high temps >90 and dry
9/14/2018 7:00 AM 0.00 0.0 M M M record high temps to mid 90's
9/15/2018 7:00 AM 0.00 0.0 M M M record high temps to 95 - cooling trend next week to more seasonal
9/16/2018 7:00 AM 0.00 0.0 M M M continuing high record temps > 90. Dry and very low humidity
9/17/2018 7:00 AM 0.00 0.0 M M M will have nine 90 degree days consecutively (7 was previous record) before cooling trend later in week.Very low humidity continues
9/18/2018 7:00 AM 0.00 0.0 M M M another high temps > 90 today. Late summer!
9/19/2018 7:00 AM 0.00 0.0 M M M cooling trend
9/20/2018 7:00 AM 0.00 0.0 M M M heavy rain to west along Foothills but NOTHING here in southeast Denver metro area
9/21/2018 7:00 AM 0.00 0.0 M M M still dry but now seasonally cooler
9/22/2018 7:00 AM 0.00 0.0 M M M windy (southerly) last evening and forecasting a drop in temps this coming week
9/23/2018 7:00 AM 0.00 0.0 M M M one more day of high 90's before a seasonal cool down. Welcome to fall 2018.
9/24/2018 7:00 AM 0.00 0.0 M M M cooling trend but still dry
9/25/2018 7:00 AM 0.01 M M M M Coldest day since last winter (April) but a one day event
9/26/2018 7:00 AM 0.00 0.0 M M M warming beck to seasonal temps
9/27/2018 7:00 AM 0.00 0.0 M M M
9/28/2018 7:00 AM 0.00 0.0 M M M seasonally cool (mid 60's today) so the seasons are changing
9/29/2018 7:00 AM 0.00 0.0 M M M lows below 50 but should warm to around 80 today. Last vestiges of summer
9/30/2018 7:00 AM 0.00 0.0 M M M misty morning and high in mid 60's. Fall is on its way



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/24/2017 11/05/2017 7:00 AM 13 0.02 M M Back in Denver and will start reporting daily precip now through late January
5/7/2018 5/22/2018 7:00 AM 16 0.68 M M re-establishing daily reports now
7/15/2018 7/17/2018 7:00 AM 3 2.83 M M Represents total accumulation over three days for several intense storms as reported in daily reports
7/31/2018 8/21/2018 7:00 AM 22 0.57 M M



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground