Station Overview Station Location
Station Number CO-JF-504 Latitude 39.7942
Station Name Arvada 3.6 WSW Longitude -105.1639
County Jefferson Elevation (ft) 5580



Month 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 18 1.74 10 1.74 10 0.00 0 0 10 0 0.0 0 0
Nov 18 0.52 7 0.52 7 0.00 0 0 7 0 0.0 0 0
Dec 18 0.05 4 0.05 4 0.00 0 0 4 0 0.0 0 0
Jan 19 1.36 9 1.36 9 0.00 0 0 9 0 0.0 0 0
Feb 19 0.67 7 0.67 7 0.00 0 0 7 0 0.0 0 0
March 19 1.80 10 1.02 4 0.78 6 1 4 0 0.0 0 0
April 19 1.35 6 1.35 6 0.00 0 0 6 0 0.0 0 0
May 19 3.14 16 3.14 16 0.00 0 0 16 0 0.0 0 0
June 19 1.69 13 1.69 13 0.00 0 0 13 0 0.0 0 0
July 19 1.50 12 1.50 12 0.00 0 0 12 0 0.0 0 0
Aug 19 0.52 6 0.52 6 0.00 0 0 6 0 0.0 0 0
Sept 19 0.40 4 0.40 4 0.00 0 0 4 0 0.0 0 0
Water Year Totals: 14.74" 104 days 13.96" 98 0.78" 6 days 1 98 days 0 days 0.0" 0 days 0 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
10/1/2018
10/2/2018
10/3/2018
10/4/2018
10/5/2018
10/6/2018 0.31
10/7/2018 0.01
10/8/2018 0.35
10/9/2018 0.23
10/10/2018 0.16
10/11/2018 0.10
10/12/2018 0.01
10/13/2018
10/14/2018 0.18
10/15/2018 0.08
10/16/2018
10/17/2018
10/18/2018
10/19/2018
10/20/2018
10/21/2018
10/22/2018
10/23/2018
10/24/2018
10/25/2018
10/26/2018
10/27/2018
10/28/2018
10/29/2018
10/30/2018
10/31/2018 0.31
11/1/2018 0.01
11/2/2018
11/3/2018
11/4/2018 0.02
11/5/2018
11/6/2018
11/7/2018
11/8/2018
11/9/2018
11/10/2018
11/11/2018 0.06
11/12/2018 0.33
11/13/2018 0.01
11/14/2018
11/15/2018
11/16/2018
11/17/2018 0.01
11/18/2018 0.08
11/19/2018
11/20/2018
11/21/2018
11/22/2018
11/23/2018
11/24/2018
11/25/2018
11/26/2018
11/27/2018
11/28/2018
11/29/2018
11/30/2018
12/1/2018
12/2/2018
12/3/2018 0.02
12/4/2018 0.01
12/5/2018
12/6/2018
12/7/2018 0.01
12/8/2018
12/9/2018
12/10/2018
12/11/2018
12/12/2018
12/13/2018
12/14/2018
12/15/2018
12/16/2018
12/17/2018
12/18/2018
12/19/2018
12/20/2018
12/21/2018
12/22/2018
12/23/2018
12/24/2018
12/25/2018
12/26/2018
12/27/2018 0.01
12/28/2018
12/29/2018
12/30/2018
12/31/2018
Day of YearDaily PrcpMultiday Prcp
1/1/2019 0.09
1/2/2019
1/3/2019
1/4/2019
1/5/2019
1/6/2019
1/7/2019
1/8/2019
1/9/2019
1/10/2019
1/11/2019 0.07
1/12/2019 0.59
1/13/2019 0.01
1/14/2019
1/15/2019
1/16/2019
1/17/2019
1/18/2019
1/19/2019 0.23
1/20/2019
1/21/2019
1/22/2019 0.02
1/23/2019
1/24/2019
1/25/2019 0.11
1/26/2019
1/27/2019
1/28/2019 0.13
1/29/2019 0.11
1/30/2019
1/31/2019
2/1/2019
2/2/2019
2/3/2019
2/4/2019
2/5/2019
2/6/2019
2/7/2019 0.20
2/8/2019
2/9/2019
2/10/2019
2/11/2019
2/12/2019
2/13/2019
2/14/2019
2/15/2019
2/16/2019
2/17/2019 0.01
2/18/2019 0.09
2/19/2019 0.02
2/20/2019 0.02
2/21/2019
2/22/2019 0.01
2/23/2019 0.32
2/24/2019
2/25/2019
2/26/2019
2/27/2019
2/28/2019
3/1/2019
3/2/2019
3/3/2019 0.38
3/4/2019 0.04
3/5/2019
3/6/2019
3/7/2019 0.18
3/8/2019
3/9/2019
3/10/2019
3/11/2019
3/12/2019 **
3/13/2019 **
3/14/2019 **
3/15/2019 **
3/16/2019 **
3/17/2019 0.78
3/18/2019
3/19/2019
3/20/2019
3/21/2019
3/22/2019
3/23/2019
3/24/2019
3/25/2019
3/26/2019
3/27/2019
3/28/2019
3/29/2019
3/30/2019 0.42
3/31/2019
Day of YearDaily PrcpMultiday Prcp
4/1/2019
4/2/2019
4/3/2019
4/4/2019
4/5/2019
4/6/2019
4/7/2019
4/8/2019
4/9/2019
4/10/2019
4/11/2019 0.48
4/12/2019
4/13/2019 0.15
4/14/2019
4/15/2019
4/16/2019
4/17/2019
4/18/2019 0.01
4/19/2019
4/20/2019
4/21/2019
4/22/2019 0.38
4/23/2019 0.03
4/24/2019
4/25/2019
4/26/2019
4/27/2019
4/28/2019
4/29/2019
4/30/2019 0.30
5/1/2019 0.04
5/2/2019
5/3/2019
5/4/2019
5/5/2019
5/6/2019
5/7/2019 0.08
5/8/2019 0.21
5/9/2019 0.83
5/10/2019 0.10
5/11/2019
5/12/2019 0.01
5/13/2019
5/14/2019
5/15/2019
5/16/2019
5/17/2019
5/18/2019 0.14
5/19/2019 0.03
5/20/2019 0.03
5/21/2019 0.88
5/22/2019 0.02
5/23/2019 0.20
5/24/2019 0.02
5/25/2019
5/26/2019
5/27/2019
5/28/2019 0.44
5/29/2019 0.10
5/30/2019
5/31/2019 0.01
6/1/2019
6/2/2019 0.01
6/3/2019
6/4/2019 0.02
6/5/2019
6/6/2019 0.22
6/7/2019 0.01
6/8/2019 0.13
6/9/2019 0.07
6/10/2019
6/11/2019
6/12/2019
6/13/2019
6/14/2019 0.02
6/15/2019
6/16/2019
6/17/2019 0.04
6/18/2019 0.07
6/19/2019 0.02
6/20/2019
6/21/2019
6/22/2019 0.82
6/23/2019 0.25
6/24/2019
6/25/2019
6/26/2019
6/27/2019
6/28/2019
6/29/2019 0.01
6/30/2019
Day of YearDaily PrcpMultiday Prcp
7/1/2019 0.06
7/2/2019 0.09
7/3/2019
7/4/2019 0.01
7/5/2019 0.01
7/6/2019 0.14
7/7/2019
7/8/2019
7/9/2019 0.02
7/10/2019
7/11/2019
7/12/2019
7/13/2019
7/14/2019 0.19
7/15/2019 0.01
7/16/2019 0.01
7/17/2019
7/18/2019
7/19/2019
7/20/2019
7/21/2019
7/22/2019 0.91
7/23/2019 0.03
7/24/2019
7/25/2019
7/26/2019 0.02
7/27/2019
7/28/2019
7/29/2019
7/30/2019
7/31/2019
8/1/2019 0.28
8/2/2019 0.04
8/3/2019
8/4/2019
8/5/2019
8/6/2019
8/7/2019
8/8/2019
8/9/2019 0.05
8/10/2019
8/11/2019
8/12/2019
8/13/2019
8/14/2019
8/15/2019
8/16/2019
8/17/2019
8/18/2019
8/19/2019
8/20/2019
8/21/2019 0.02
8/22/2019 0.12
8/23/2019
8/24/2019
8/25/2019
8/26/2019
8/27/2019
8/28/2019
8/29/2019
8/30/2019
8/31/2019 0.01
9/1/2019
9/2/2019
9/3/2019
9/4/2019
9/5/2019 0.07
9/6/2019
9/7/2019 0.13
9/8/2019
9/9/2019
9/10/2019
9/11/2019 0.16
9/12/2019
9/13/2019
9/14/2019
9/15/2019
9/16/2019
9/17/2019
9/18/2019
9/19/2019
9/20/2019
9/21/2019
9/22/2019 0.04
9/23/2019
9/24/2019
9/25/2019
9/26/2019
9/27/2019
9/28/2019
9/29/2019
9/30/2019



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/6/2018 6:00 AM 0.31 M M M M rain: .09 evening, .22 overnight
10/7/2018 6:00 AM 0.01 M M M M overnight rain
10/8/2018 6:00 AM 0.35 M M M M drizzle: .01 afternoon, .03 evening; .31 overnight rain
10/9/2018 6:00 AM 0.23 M M M M yesterday morning .14 rain; afternoon .05 rain; evening .02 rain; overnight .02 drizzle
10/10/2018 6:00 AM 0.16 M M M M yesterday morning .08 rain; overnight .06 rain + .02 freezing drizzle
10/11/2018 6:00 AM 0.10 M M M M .07 morning rain, .02 afternoon drizzle, .01 evening drizzle
10/12/2018 6:00 AM 0.01 M M M M afternoon rain
10/14/2018 6:00 AM 0.18 M 0.18 M M overnight snow
10/15/2018 6:00 AM 0.08 M 0.08 M M snow: .06 morning, .02 afternoon
10/31/2018 6:00 AM 0.31 M 0.31 M M wet snow: .10 afternoon, .08 evening, .13 overnight
11/1/2018 6:00 AM 0.01 M M M M yesterday morning drizzle
11/4/2018 6:00 AM 0.02 M M M M afternoon rain shower
11/11/2018 6:00 AM 0.06 M 0.06 M M overnight snow
11/12/2018 6:00 AM 0.33 M 0.33 M M snow: .12 morning; .15 afternoon; .06 evening and overnight
11/13/2018 6:00 AM 0.01 M 0.01 M M yesterday morning snow
11/17/2018 6:00 AM 0.01 M M M M overnight drizzle after 4 pm
11/18/2018 6:00 AM 0.08 M 0.02 M M yesterday morning: .06 freezing drizzle + snow; afternoon .01 freezing drizzle; evening .01 snow
12/3/2018 6:00 AM 0.02 M 0.02 M M overnight snow
12/4/2018 6:00 AM 0.01 M 0.01 M M overnight snow
12/7/2018 6:00 AM 0.01 M 0.01 M M snow yesterday morning
12/27/2018 6:00 AM 0.01 M 0.01 M M afternoon snow
1/1/2019 6:00 AM 0.09 M 0.09 M M snow: .03 morning; .04 afternoon; .01 evening; .01 overnight
1/11/2019 6:00 AM 0.07 M M M M overnight .05 rain + .02 slush
1/12/2019 6:00 AM 0.59 M 0.59 M M snow: .38 morning; .09 afternoon; .12 evening and overnight
1/13/2019 6:00 AM 0.01 M 0.01 M M snow yesterday morning
1/19/2019 6:00 AM 0.23 M 0.20 M M yesterday morning: .03 rain plus .12 snow; .08 afternoon snow
1/22/2019 6:00 AM 0.02 M 0.02 M M overnight snow
1/25/2019 6:00 AM 0.11 M 0.11 M M snow yesterday morning
1/28/2019 6:00 AM 0.13 M 0.13 M M late overnight snow
1/29/2019 6:00 AM 0.11 M 0.11 M M snow yesterday morning
2/7/2019 6:00 AM 0.20 M 0.20 M M morning and afternoon snow
2/17/2019 6:00 AM 0.01 M 0.01 M M afternoon snow shower
2/18/2019 6:00 AM 0.09 M 0.09 M M snow: .02 afternoon; .04 evening; .03 overnight
2/19/2019 6:00 AM 0.02 M 0.02 M M snow: .01 morning; .01 overnight
2/20/2019 6:00 AM 0.02 M 0.02 M M snow: .01 morning; .01 evening
2/22/2019 6:00 AM 0.01 M 0.01 M M overnight snow
2/23/2019 6:00 AM 0.32 M 0.32 M M snow: .09 afternoon; .08 evening; .15 overnight
3/3/2019 6:00 AM 0.38 M 0.38 M M snow: .05 afternoon; .17 evening; .16 overnight
3/4/2019 6:00 AM 0.04 M 0.04 M M afternoon snow
3/7/2019 6:00 AM 0.18 M 0.18 M M overnight snow
3/30/2019 6:00 AM 0.42 M 0.30 M M .06 afternoon rain shower; .09 evening mixed rain and snow; .27 overnight snow
4/11/2019 6:00 AM 0.48 M 0.45 M M .03 morning rain; .23 afternoon snow; .08 evening snow; .14 overnight snow
4/13/2019 6:00 AM 0.15 M 0.15 M M overnight snow
4/18/2019 6:00 AM 0.01 M M M M overnight shower
4/22/2019 6:00 AM 0.38 M M M M .26 afternoon thundershower; .12 overnight rain
4/23/2019 6:00 AM 0.03 M M M M overnight rain
4/30/2019 6:00 AM 0.30 M M M M overnight rain, maybe with some snow
5/1/2019 6:00 AM 0.04 M M M M afternoon rain
5/7/2019 6:00 AM 0.08 M M M M .05 evening shower; .03 overnight rain
5/8/2019 6:00 AM 0.21 M M M M .08 morning rain; .11 afternoon shower; .01 evening rain; .01 overnight rain
5/9/2019 6:00 AM 0.83 M 0.26 M M .33 rain morning to 2 PM, then .08 rain for rest of afternoon; .16 evening rain; .26 overnight snow
5/10/2019 6:00 AM 0.10 M 0.06 M M .06 slushy snow yesterday morning; .03 afternoon rain; .01 evening rain
5/12/2019 6:00 AM 0.01 M M M M evening shower
5/18/2019 6:00 AM 0.14 M M M M .13 evening thundershower; .01 overnight rain
5/19/2019 6:00 AM 0.03 M M M M evening shower
5/20/2019 6:00 AM 0.03 M M M M overnight rain
5/21/2019 6:00 AM 0.88 M 0.62 M M .04 morning rain; .07 afternoon rain; .15 rain + .08 snow in evening; .54 overnight snow
5/22/2019 6:00 AM 0.02 M 0.02 M M snow yesterday morning
5/23/2019 6:00 AM 0.20 M M M M .01 afternoon rain; .01 evening rain; .18 overnight rain
5/24/2019 6:00 AM 0.02 M M M M .01 morning drizzle, .01 afternoon rain
5/28/2019 6:00 AM 0.44 M M M M overnight thundershower with hail: .24 as rain, .20 as 1/8 inch hail
5/29/2019 6:00 AM 0.10 M M M M .03 afternoon shower, .01 evening rain; .06 overnight rain
5/31/2019 6:00 AM 0.01 M M M M evening rain
6/2/2019 6:00 AM 0.01 M M M M afternoon thundershower
6/4/2019 6:00 AM 0.02 M M M M afternoon thundershower
6/6/2019 6:00 AM 0.22 M M M M evening thundershower .07; overnight thundershower .15
6/7/2019 6:00 AM 0.01 M M M M overnight thundershower
6/8/2019 6:00 AM 0.13 M M M M afternoon thundershower
6/9/2019 6:00 AM 0.07 M M M M overnight rain
6/14/2019 6:00 AM 0.02 M M M M afternoon shower
6/17/2019 6:00 AM 0.04 M M M M .03 afternoon shower; .01 overnight shower
6/18/2019 6:00 AM 0.07 M M M M afternoon shower .06; overnight rain .01
6/19/2019 6:00 AM 0.02 M M M M afternoon shower
6/22/2019 6:00 AM 0.82 M M M M afternoon shower .33; evening thundershower .26; overnight rain .23
6/23/2019 6:00 AM 0.25 M M M M yesterday morning: .11 rain; afternoon: .11 rain; evening: .03 rain
6/29/2019 6:00 AM 0.01 M M M M evening shower
7/1/2019 6:00 AM 0.06 M M M M evening thundershower
7/2/2019 6:00 AM 0.09 M M M M .02 afternoon shower; .07 overnight thundershower
7/4/2019 6:00 AM 0.01 M M M M afternoon shower
7/5/2019 6:00 AM 0.01 M M M M evening thundershower
7/6/2019 6:00 AM 0.14 M M M M evening .13 thundershower; overnight .01 shower
7/9/2019 6:00 AM 0.02 M M M M afternoon shower
7/14/2019 6:00 AM 0.19 M M M M evening thundershower
7/15/2019 6:00 AM 0.01 M M M M afternoon thundershower
7/16/2019 6:00 AM 0.01 M M M M shower
7/22/2019 6:00 AM 0.91 M M M M thundershowers: .04 afternoon; .51 evening; .35 overnight
7/23/2019 6:00 AM 0.03 M M M M afternoon shower
7/26/2019 6:00 AM 0.02 M M M M shower
8/1/2019 6:00 AM 0.28 M M M M evening .24 thundershower; overnight .04 rain
8/2/2019 6:00 AM 0.04 M M M M afternoon shower
8/9/2019 6:00 AM 0.05 M M M M .03 afternoon rain; .02 evening rain
8/21/2019 6:00 AM 0.02 M M M M overnight thundershower
8/22/2019 6:00 AM 0.12 M M M M late afternoon .01 thundershower; evening: .11 thundershower
8/31/2019 6:00 AM 0.01 M M M M afternoon shower
9/5/2019 6:00 AM 0.07 M M M M afternoon thundershower
9/7/2019 6:00 AM 0.13 M M M M afternoon: .06 thundershower; evening: .04 shower; overnight: .03 shower
9/11/2019 6:00 AM 0.16 M M M M afternoon .15 shower; evening .01 shower
9/22/2019 6:00 AM 0.04 M M M M rain overnight



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
3/12/2019 3/17/2019 7:00 AM 6 0.78 M M mostly rain, maybe some snow; maybe some evaporation loss



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
1/1/0001 12:00 AM overnight hail, 1/8 inch size, .24 rain + .20 from hail 1/4" Pea Size Rice NA True
1/1/0001 12:00 AM afternoon storm, .55 total precip, 1/2 inch stones uncommon 1/2" Grape 1/4" Pea Size NA Continuous False