Station Overview Station Location
Station Number CO-BO-385 Latitude 40.104848
Station Name Niwot 0.7 NNW Longitude -105.1611
County Boulder Elevation (ft) 5079



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 14 1.02 1.18 31 1.18 31 0.00 0 0 5 1 0.0 0 0
Nov 14 0.82 0.49 15 0.49 15 0.00 0 0 4 0 2.5 3 6
Dec 14 0.58 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 15 0.43 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 15 0.50 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 15 1.54 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 15 1.84 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 15 2.31 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 15 1.80 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 15 1.32 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 15 1.39 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 15 1.45 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 15.00" 1.67" 46 days 1.67" 46 0.00" 0 days 0 9 days 1 days 2.5" 3 days 6 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
10/1/2014 0.00
10/2/2014 0.12
10/3/2014 0.00
10/4/2014 0.00
10/5/2014 0.00
10/6/2014 0.00
10/7/2014 0.01
10/8/2014 0.00
10/9/2014 0.00
10/10/2014 1.02
10/11/2014 T
10/12/2014 0.00
10/13/2014 0.01
10/14/2014 0.00
10/15/2014 0.00
10/16/2014 0.00
10/17/2014 0.00
10/18/2014 0.00
10/19/2014 0.00
10/20/2014 0.00
10/21/2014 0.00
10/22/2014 0.00
10/23/2014 0.00
10/24/2014 0.00
10/25/2014 0.00
10/26/2014 0.00
10/27/2014 0.02
10/28/2014 0.00
10/29/2014 0.00
10/30/2014 0.00
10/31/2014 0.00
11/1/2014 0.00
11/2/2014 0.00
11/3/2014 0.08
11/4/2014 0.00
11/5/2014 0.00
11/6/2014 0.00
11/7/2014 0.00
11/8/2014 0.18
11/9/2014 0.00
11/10/2014 0.00
11/11/2014 0.03
11/12/2014
11/13/2014 M
11/14/2014 0.00
11/15/2014 0.00
11/16/2014 0.20
11/17/2014 0.00
11/18/2014
11/19/2014
11/20/2014
11/21/2014
11/22/2014
11/23/2014
11/24/2014
11/25/2014
11/26/2014
11/27/2014
11/28/2014
11/29/2014
11/30/2014
12/1/2014
12/2/2014
12/3/2014
12/4/2014
12/5/2014
12/6/2014
12/7/2014
12/8/2014
12/9/2014
12/10/2014
12/11/2014
12/12/2014
12/13/2014
12/14/2014
12/15/2014
12/16/2014
12/17/2014
12/18/2014
12/19/2014
12/20/2014
12/21/2014
12/22/2014
12/23/2014
12/24/2014
12/25/2014
12/26/2014
12/27/2014
12/28/2014
12/29/2014
12/30/2014
12/31/2014
Day of YearDaily PrcpMultiday Prcp
1/1/2015
1/2/2015
1/3/2015
1/4/2015
1/5/2015
1/6/2015
1/7/2015
1/8/2015
1/9/2015
1/10/2015
1/11/2015
1/12/2015
1/13/2015
1/14/2015
1/15/2015
1/16/2015
1/17/2015
1/18/2015
1/19/2015
1/20/2015
1/21/2015
1/22/2015
1/23/2015
1/24/2015
1/25/2015
1/26/2015
1/27/2015
1/28/2015
1/29/2015
1/30/2015
1/31/2015
2/1/2015
2/2/2015
2/3/2015
2/4/2015
2/5/2015
2/6/2015
2/7/2015
2/8/2015
2/9/2015
2/10/2015
2/11/2015
2/12/2015
2/13/2015
2/14/2015
2/15/2015
2/16/2015
2/17/2015
2/18/2015
2/19/2015
2/20/2015
2/21/2015
2/22/2015
2/23/2015
2/24/2015
2/25/2015
2/26/2015
2/27/2015
2/28/2015
3/1/2015
3/2/2015
3/3/2015
3/4/2015
3/5/2015
3/6/2015
3/7/2015
3/8/2015
3/9/2015
3/10/2015
3/11/2015
3/12/2015
3/13/2015
3/14/2015
3/15/2015
3/16/2015
3/17/2015
3/18/2015
3/19/2015
3/20/2015
3/21/2015
3/22/2015
3/23/2015
3/24/2015
3/25/2015
3/26/2015
3/27/2015
3/28/2015
3/29/2015
3/30/2015
3/31/2015
Day of YearDaily PrcpMultiday Prcp
4/1/2015
4/2/2015
4/3/2015
4/4/2015
4/5/2015
4/6/2015
4/7/2015
4/8/2015
4/9/2015
4/10/2015
4/11/2015
4/12/2015
4/13/2015
4/14/2015
4/15/2015
4/16/2015
4/17/2015
4/18/2015
4/19/2015
4/20/2015
4/21/2015
4/22/2015
4/23/2015
4/24/2015
4/25/2015
4/26/2015
4/27/2015
4/28/2015
4/29/2015
4/30/2015
5/1/2015
5/2/2015
5/3/2015
5/4/2015
5/5/2015
5/6/2015
5/7/2015
5/8/2015
5/9/2015
5/10/2015
5/11/2015
5/12/2015
5/13/2015
5/14/2015
5/15/2015
5/16/2015
5/17/2015
5/18/2015
5/19/2015
5/20/2015
5/21/2015
5/22/2015
5/23/2015
5/24/2015
5/25/2015
5/26/2015
5/27/2015
5/28/2015
5/29/2015
5/30/2015
5/31/2015
6/1/2015
6/2/2015
6/3/2015
6/4/2015
6/5/2015
6/6/2015
6/7/2015
6/8/2015
6/9/2015
6/10/2015
6/11/2015
6/12/2015
6/13/2015
6/14/2015
6/15/2015
6/16/2015
6/17/2015
6/18/2015
6/19/2015
6/20/2015
6/21/2015
6/22/2015
6/23/2015
6/24/2015
6/25/2015
6/26/2015
6/27/2015
6/28/2015
6/29/2015
6/30/2015
Day of YearDaily PrcpMultiday Prcp
7/1/2015
7/2/2015
7/3/2015
7/4/2015
7/5/2015
7/6/2015
7/7/2015
7/8/2015
7/9/2015
7/10/2015
7/11/2015
7/12/2015
7/13/2015
7/14/2015
7/15/2015
7/16/2015
7/17/2015
7/18/2015
7/19/2015
7/20/2015
7/21/2015
7/22/2015
7/23/2015
7/24/2015
7/25/2015
7/26/2015
7/27/2015
7/28/2015
7/29/2015
7/30/2015
7/31/2015
8/1/2015
8/2/2015
8/3/2015
8/4/2015
8/5/2015
8/6/2015
8/7/2015
8/8/2015
8/9/2015
8/10/2015
8/11/2015
8/12/2015
8/13/2015
8/14/2015
8/15/2015
8/16/2015
8/17/2015
8/18/2015
8/19/2015
8/20/2015
8/21/2015
8/22/2015
8/23/2015
8/24/2015
8/25/2015
8/26/2015
8/27/2015
8/28/2015
8/29/2015
8/30/2015
8/31/2015
9/1/2015
9/2/2015
9/3/2015
9/4/2015
9/5/2015
9/6/2015
9/7/2015
9/8/2015
9/9/2015
9/10/2015
9/11/2015
9/12/2015
9/13/2015
9/14/2015
9/15/2015
9/16/2015
9/17/2015
9/18/2015
9/19/2015
9/20/2015
9/21/2015
9/22/2015
9/23/2015
9/24/2015
9/25/2015
9/26/2015
9/27/2015
9/28/2015
9/29/2015
9/30/2015



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2014 7:26 AM 0.00 0.0 M M M Interesting scattered rolls of clouds from west to east. SW winds dry and calm. Yesterday's light breeze became a mderate gusty wind throughout the day. Temps: HI-70.9 Lo-44.4F Current-44.8F
10/2/2014 7:22 AM 0.12 M M M M Wednesday afternoon brief shower with cold, gusty east wind. More showers during the night. This AM skies are clear. WSW wind calm. Temps: Hi-67.3F Lo-39.2F Current-39.2F
10/3/2014 6:59 AM 0.00 0.0 M M M SW winds calm. Skies overcast. Dry - no dew. Temps: Hi-67:3F Lo-39.2F Current-40.3F. A south wind yesterday afternoon which calmed down in the evening.
10/4/2014 7:36 AM 0.00 0.0 M M M Yesterday's clouds cleared later in the morning and it was a cool, windy but sunny day. This AM the skies are clear. White frost covers the grass and rain gauge. WSW winds calm now Temps: Hi-61.3F :o-35.4F Current-36.0F
10/5/2014 7:25 AM 0.00 0.0 M M M Yesterday was a beautiful Autumn day. This AM SSW winds calm. Skies clear and dry. Temps: Hi-73.6F Lo-36.0F Current-41.7F
10/6/2014 7:13 AM 0.00 0.0 M M M A bit breezy late in the morning but Sunday was another beautiful Autumn day. Except for a few clouds low on the southern horizon this AM there are clear skies with light dew. SW winds are calm.
10/7/2014 7:22 AM 0.01 M M M M Again the wind came up before noon yesterday but clamed down in the afternoon. That brief shower must have occured some time during the night. WSW wind calm this AM. Skies are clear. Tempa: Hi-81.1F Lo-44.2F Current-45.3F
10/8/2014 7:11 AM 0.00 0.0 M M M Did you see the eclipse? Miraculous! This AM broken clouds, WSW winds dry and calm. Temps: Hi-80.4F Lo-44.8F Current-45.5F
10/9/2014 7:11 AM 0.00 0.0 M M M Overcast in the west with broken clouds brilliantly colored by the sunrise in the east. West wind dry and calm. Temps: Hi-77.7F Lo-45.3F Current-47.8F
10/10/2014 7:12 AM 1.02 M M M M Rain began shortly after noon yesterday and continued in to early this morning. During the late afternoon the "dry" creek behind the house was running about half full. SW wind calm this AM with over-cast skies. Temps: Hi-63.9F Lo-48.4F Current-50.5F
10/11/2014 7:17 AM T M M M M Skies are clear with heavy dew. West wind calm. Temp: Hi-62.8F Lo-39.4F Current-39.4F
10/12/2014 7:16 AM 0.00 0.0 M M M Light WSW breeze. Nearby Cottonwoods beginning to really shed their leaves. A few broken clouds in the west. Much heavier in the east. No dew.
10/13/2014 7:18 AM 0.01 M M M M Brief rain about 3 PM yesterday with blustery winds. This AM skies are clear with a few scattered clouds low in the south east. Heavy dew. WNW winds calm. Temps: Hi-59.0F Lo-34.7F Current-35.1F
10/14/2014 7:19 AM 0.00 0.0 M M M Strong breezes whipped the leaves around from time to time yesterday. This AM light frost on all the roofs. Skies clear and SW winds calm. Temps: Hi-61.7F Lo-33.1F Current-33.4F
10/15/2014 7:17 AM 0.00 0.0 M M M Clear skies except for light scattered clouds in the southwest. Light dew with SW winds calm. Last quarter moon is billiant at its zenith. Temps: Hi-74.3F Lo-34.0F Current-36.7F
10/16/2014 7:21 AM 0.00 0.0 M M M Thin, scattered clouds. SW winds calm. No dew. Temps: Hi-73.0F Lo-36.9F Current-49.8F. Yesterday we drove in to the mountains and could see Eldora's ski runs. No snow there and the fall colors are almost gone.
10/17/2014 7:17 AM 0.00 0.0 M M M West wind calm with light frost on the gauge, roofs and grass. A sliver of a wanning moon high in the clear skies. Temps: Hi-72.3F Lo-37.4F Current-37.4F
10/18/2014 7:12 AM 0.00 0.0 M M M West wind calm with light dew on the gauge. Interesting-there is a dry creek behind our property and it has frost. High, thin, scattered clouds bright orange and pink from the rising sun. Temps: Hi-63/5F Lo-37.0F Current-37.0F
10/19/2014 7:10 AM 0.00 0.0 M M M Could not access this website until now (12:16 PM) Sorry! WSW winds were calm and dry. Thin, high, scattered clouds at observation time. Yesterday's temperatures no longer available.
10/20/2014 7:17 AM 0.00 0.0 M M M Skies clear with just a tiny sliver of a waning moon. West winds calm with light dew. Temps: Hi-75.9F Lo-39.4F Current-39.4F
10/21/2014 7:21 AM 0.00 0.0 M M M WSW winds calm with light dew. Heavy clouds all around the horrizon with very light, scattered clouds overhead. Temps: Hi-74.3F Lo-39.4F Current-41.5F
10/22/2014 7:23 AM 0.00 0.0 M M M Heavy clouds in the NE. SSW winds calm and dry. Temps: Hi-76.6F Lo-41.9F Current-48.6F
10/23/2014 7:41 AM 0.00 0.0 M M M Skies clear except for a heavy band of clouds in the south west. SW winds calm with very light dew. Temps: Hi-74.8F Lo-39.6F Cureent-40.1F
10/24/2014 7:09 AM 0.00 0.0 M M M Dry, warm and breezy SW winds. Chinook? Broken cloud cover but clear on the SW horizon. Temps: Hi-74.1F Lo-40.6F Current-61.3F
10/25/2014 7:22 AM 0.00 0.0 M M M SW winds dry and calm. Skies clear waiting for the sun. Temps: Hi-81.5F Lo-39.2F Current-39.6F
10/26/2014 7:12 AM 0.00 0.0 M M M Brilliant broken clouds - glowing pink in the west, orange in the east. SW winds dry and calm. Temps: Hi-80.2F Lo-38.8F Current-51.3
10/27/2014 7:18 AM 0.02 M M M M A bright sliver of a new moon with faint earth shine lighting the rest of the moon early last evening. The rain fell sometime during the night. This AM skies are clear with a SE breeze and broken clouds low in the south. Temps: Hi-81.3F Lo-44.8F Current-44.8F
10/28/2014 7:25 AM 0.00 0.0 M M M SW winds are dry amd calm but by 10 AM it is often quite windy. High broken clouds are streaming from the NW. Temps: Hi-59.9F Lo-33.6F Current-34.3F
10/29/2014 7:16 AM 0.00 0.0 M M M WSW winds calm and skies clear. Light frost this AM with the first freezing temperature of the season. Temps: Hi-59.9F Lo-29.5F Current-29.7
10/30/2014 7:35 AM 0.00 0.0 M M M Skies clear and dry. WSW wind calm. Sun just peeking over the eastern horizon. Temp: HI-72.0F Lo-29.8F Current-37.4F
10/31/2014 7:25 AM 0.00 0.0 M M M Scattered clouds brilliantly lit by the sunrise. WSW winds calm with light frost. Temps: Hi-64.8 Lo-32.9F Current-32.9F
11/1/2014 7:21 AM 0.00 0.0 M M M Another glorious sunrise lighting the scattered clouds. West winds calm with light frost. Temps: Hi-64.8F Lo-32.2F Current-32.9F
11/2/2014 6:31 AM 0.00 0.0 M M M As long as I'm awake anyway - West wind calm and dry. Scattered clouds glowing with the sunrise. Temps: Hi-63.9F Lo-32.9F Current-37.2F
11/3/2014 7:15 AM 0.08 M M M M Brief shower about 4:30 AM with lightening and two peals of thunder. Cloud cover moving rapidly from east to west. Breezy. Temps: Hi-68.9F Lo-37.9F Current-41.9F
11/4/2014 7:15 AM 0.00 0.0 M M M Heavy frost: trees, shrubs, fences, grass. Skies clear and wind calm. Temp: Hi-46.0F Lo-25.3F Current-26.2F. Brought in the rain gauge core to protect it.
11/5/2014 7:10 AM 0.00 0.0 M M M The water reported this AM was frost that melted in the gauge when I brought it in the house yesterday. Does it count? Skies clear except for a few scattered clouds on the SE horizon. Must move our weathervane as a shrub is diverting the wind. Temps: Hi-60.6F Lo-26.2F Current-36.0F
11/6/2014 7:30 AM 0.00 0.0 M M M Light frost, clear skies, calm winds. Temps: Hi-65.7F Lo-30.7F Current-33.1F.
11/7/2014 7:26 AM 0.00 0.0 M M M Overcast skies although clear on the western horizon. Quite breezy. Temps: Hi-67.1F Lo-34.9F Current-57.2F
11/8/2014 7:11 AM 0.18 M M M M Windy during the day yesterday. Rain fell some time during the night. Frost everywhere, skies clear and calm this AM.
11/9/2014 7:10 AM 0.00 0.0 M M M Skies broken overcast with a clear streak to the west. Winds calm and dry. Temps: Hi-68.2F Lo-35.6F Current-42.3F
11/10/2014 7:04 AM 0.00 0.0 M M M Soon after yesterday's report strong West winds began to blow. Dry, gusty SSW winds this AM. Skies clear except for a few scattered clouds in the NW. Temps: Hi-72.9F Lo-42.3F Current-59.4F
11/11/2014 7:20 AM 0.03 0.5 0.03 0.5 M Breezy throughout the day. Light snow began at noon yesterday and has continued on and off. There are still a few flakes falling at observation time. Skies are overcast. Winds are calm this AM. Temps: Hi-66.7F about 11 AM and then in a short time fell 30 degrees. Lo-16.3F Current-17.6F
11/13/2014 7:55 AM M 0.5 0.05 3.5 M Found a new accesable location for measuring snow. Light snow fell off and on all day yesterday. This AM calm skies are blue with a few scattered clouds. Gauge covered with frost. Temps: Hi-14.9F Lo-minus 1.3F Current - 3.0F
11/14/2014 7:15 AM 0.00 0.0 M 3.0 0.28 Beautiful blue skies with a very few scattered clouds in the west. No wind for now. Gauge covered with light frost. Temps: Hi-21.0F Lo-2.7F Current-7.5F
11/15/2014 7:00 AM 0.00 0.0 M 1.6 0.18 No new snow but skies are overcast. No wind for now. About 10% of the snow melted yesterday. Temps: Hi-33.8F Lo-7.5F Current-19.9F
11/16/2014 7:15 AM 0.20 1.5 M 2.0 0.24 It continued to snow on and off until evening. No new snow overnight. This AM skies are blue and there's no wind - for now. It often comes up later in the morning. Temps: Hi-23.4F Lo-0.0F Current-1.4F
11/17/2014 7:20 AM 0.00 0.0 M 2.0 0.25 Thanks for the "heads-up. I re-read measuring snow. No new snow yesterday but very cold. Skies clear this AM. No wind. Temps: Hi-34.5F Lo-1.4F Current-15.4F



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



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