Station Overview Station Location
Station Number CO-BO-220 Latitude 40.0591
Station Name Boulder 4.7 ENE Longitude -105.1717
County Boulder Elevation (ft) 5272



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 19 1.08 1.56 28 1.56 28 0.00 0 0 10 1 14.3 7 9
Nov 19 0.83 2.23 30 2.23 30 0.00 0 0 7 2 21.6 6 15
Dec 19 0.67 0.31 31 0.31 31 0.00 0 0 3 5 3.6 3 31
Jan 20 0.47 0.00 28 0.00 28 0.00 0 0 0 1 0.0 0 3
Feb 20 0.53 1.58 28 1.31 26 0.27 2 1 8 2 12.3 6 21
March 20 1.63 2.18 28 2.18 24 0.00 4 1 6 3 10.1 4 5
April 20 1.97 1.40 24 1.40 24 0.00 0 0 7 2 25.4 5 7
May 20 2.23 1.79 29 1.79 29 0.00 0 0 7 3 0.0 0 0
June 20 1.80 2.27 29 2.27 29 0.00 0 0 8 3 0.0 0 0
July 20 1.51 0.50 31 0.50 31 0.00 0 0 8 3 0.0 0 0
Aug 20 1.49 0.23 31 0.23 30 0.00 1 0 5 6 0.0 0 0
Sept 20 1.46 1.04 30 1.02 23 0.02 7 1 2 1 2.1 1 0
Water Year Totals: 15.67" 15.09" 347 days 14.80" 333 0.29" 14 days 3 71 days 32 days 89.4" 32 days 91 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
10/1/2019 0.03
10/2/2019 0.17
10/3/2019 0.01
10/4/2019 0.00
10/5/2019 0.00
10/6/2019 0.00
10/7/2019
10/8/2019 0.00
10/9/2019 0.00
10/10/2019 0.13
10/11/2019 0.15
10/12/2019 0.00
10/13/2019 0.00
10/14/2019 0.00
10/15/2019
10/16/2019 0.00
10/17/2019 0.00
10/18/2019 0.00
10/19/2019 0.00
10/20/2019
10/21/2019 0.00
10/22/2019 0.00
10/23/2019 0.00
10/24/2019 0.27
10/25/2019 0.00
10/26/2019 0.00
10/27/2019 0.07
10/28/2019 0.34
10/29/2019 0.14
10/30/2019 0.25
10/31/2019 T
11/1/2019 0.00
11/2/2019 0.00
11/3/2019 0.00
11/4/2019 0.00
11/5/2019 0.00
11/6/2019 0.00
11/7/2019 0.07
11/8/2019 0.00
11/9/2019 0.00
11/10/2019 0.00
11/11/2019 0.09
11/12/2019 T
11/13/2019 0.00
11/14/2019 0.00
11/15/2019 0.00
11/16/2019 0.00
11/17/2019 0.00
11/18/2019 0.00
11/19/2019 0.00
11/20/2019 0.00
11/21/2019 0.26
11/22/2019 0.13
11/23/2019 T
11/24/2019 0.00
11/25/2019 0.00
11/26/2019 1.33
11/27/2019 0.30
11/28/2019 0.00
11/29/2019 0.00
11/30/2019 0.05
12/1/2019 0.00
12/2/2019 0.00
12/3/2019 0.00
12/4/2019 0.00
12/5/2019 T
12/6/2019 0.13
12/7/2019 0.00
12/8/2019 0.00
12/9/2019 T
12/10/2019 0.00
12/11/2019 0.00
12/12/2019 0.00
12/13/2019 0.00
12/14/2019 0.00
12/15/2019 T
12/16/2019 0.00
12/17/2019 0.00
12/18/2019 0.00
12/19/2019 0.00
12/20/2019 0.00
12/21/2019 0.00
12/22/2019 0.00
12/23/2019 0.00
12/24/2019 0.00
12/25/2019 0.00
12/26/2019 T
12/27/2019 T
12/28/2019 0.17
12/29/2019 0.01
12/30/2019 0.00
12/31/2019 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2020 0.00
1/2/2020 0.00
1/3/2020 0.00
1/4/2020 0.00
1/5/2020 0.00
1/6/2020 0.00
1/7/2020
1/8/2020 0.00
1/9/2020
1/10/2020 0.00
1/11/2020 0.00
1/12/2020 0.00
1/13/2020 0.00
1/14/2020
1/15/2020 0.00
1/16/2020 0.00
1/17/2020 0.00
1/18/2020 0.00
1/19/2020 0.00
1/20/2020 0.00
1/21/2020 0.00
1/22/2020 0.00
1/23/2020 0.00
1/24/2020 0.00
1/25/2020 0.00
1/26/2020 0.00
1/27/2020 0.00
1/28/2020 0.00
1/29/2020 0.00
1/30/2020 T
1/31/2020 0.00
2/1/2020 0.00
2/2/2020 0.00
2/3/2020 0.07
2/4/2020 0.38
2/5/2020 T
2/6/2020 0.00
2/7/2020 0.24
2/8/2020 0.07
2/9/2020 **
2/10/2020 0.27
2/11/2020 0.27
2/12/2020 0.00
2/13/2020 0.16
2/14/2020 0.00
2/15/2020 0.00
2/16/2020 0.00
2/17/2020 0.00
2/18/2020 0.02
2/19/2020 0.00
2/20/2020 0.10
2/21/2020
2/22/2020 0.00
2/23/2020 0.00
2/24/2020 T
2/25/2020 0.00
2/26/2020 0.00
2/27/2020 0.00
2/28/2020 0.00
2/29/2020 0.00
3/1/2020 0.00
3/2/2020 0.29
3/3/2020 0.00
3/4/2020 0.00
3/5/2020 **
3/6/2020 **
3/7/2020 **
3/8/2020 0.00
3/9/2020 0.29
3/10/2020 0.00
3/11/2020 0.00
3/12/2020 0.00
3/13/2020 T
3/14/2020 0.09
3/15/2020 0.00
3/16/2020 0.00
3/17/2020 T
3/18/2020 0.00
3/19/2020 0.11
3/20/2020 1.13
3/21/2020 T
3/22/2020
3/23/2020 0.00
3/24/2020 0.00
3/25/2020 0.00
3/26/2020
3/27/2020 0.00
3/28/2020 0.27
3/29/2020 0.00
3/30/2020 0.00
3/31/2020
Day of YearDaily PrcpMultiday Prcp
4/1/2020 0.00
4/2/2020 0.07
4/3/2020 0.06
4/4/2020 0.00
4/5/2020
4/6/2020
4/7/2020 0.00
4/8/2020
4/9/2020 0.00
4/10/2020
4/11/2020
4/12/2020 0.37
4/13/2020 0.33
4/14/2020 0.06
4/15/2020 0.00
4/16/2020 M
4/17/2020 0.34
4/18/2020 0.00
4/19/2020 T
4/20/2020 0.00
4/21/2020 0.00
4/22/2020 0.00
4/23/2020 0.00
4/24/2020 0.17
4/25/2020 T
4/26/2020 0.00
4/27/2020 0.00
4/28/2020 0.00
4/29/2020 0.00
4/30/2020 0.00
5/1/2020 0.00
5/2/2020 0.00
5/3/2020 0.12
5/4/2020 0.07
5/5/2020 0.00
5/6/2020 0.00
5/7/2020 0.00
5/8/2020 0.00
5/9/2020 0.00
5/10/2020 0.00
5/11/2020 0.00
5/12/2020 0.19
5/13/2020 T
5/14/2020 0.00
5/15/2020 0.05
5/16/2020 0.28
5/17/2020 0.00
5/18/2020 0.00
5/19/2020 0.00
5/20/2020 0.00
5/21/2020 0.00
5/22/2020 0.00
5/23/2020 0.00
5/24/2020 0.00
5/25/2020 0.98
5/26/2020 T
5/27/2020 0.00
5/28/2020
5/29/2020
5/30/2020 T
5/31/2020 0.10
6/1/2020 0.01
6/2/2020 0.00
6/3/2020 0.00
6/4/2020 0.00
6/5/2020 0.01
6/6/2020 0.00
6/7/2020 0.06
6/8/2020 0.00
6/9/2020 0.50
6/10/2020 0.00
6/11/2020 0.00
6/12/2020 0.00
6/13/2020 0.00
6/14/2020 0.25
6/15/2020 0.00
6/16/2020 0.00
6/17/2020 T
6/18/2020 0.00
6/19/2020 0.88
6/20/2020 0.28
6/21/2020 0.00
6/22/2020 T
6/23/2020 0.00
6/24/2020 0.00
6/25/2020
6/26/2020 T
6/27/2020 0.28
6/28/2020 0.00
6/29/2020 0.00
6/30/2020 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.06
7/2/2020 0.00
7/3/2020 0.00
7/4/2020 0.00
7/5/2020 0.00
7/6/2020 0.00
7/7/2020 0.00
7/8/2020 0.00
7/9/2020 0.00
7/10/2020 0.00
7/11/2020 0.00
7/12/2020 0.00
7/13/2020 0.00
7/14/2020 0.07
7/15/2020 0.03
7/16/2020 0.00
7/17/2020 0.00
7/18/2020 0.00
7/19/2020 T
7/20/2020 0.00
7/21/2020 0.00
7/22/2020 0.00
7/23/2020 0.01
7/24/2020 T
7/25/2020 0.21
7/26/2020 0.05
7/27/2020 0.00
7/28/2020 0.00
7/29/2020 0.04
7/30/2020 0.03
7/31/2020 T
8/1/2020 0.04
8/2/2020 T
8/3/2020 0.00
8/4/2020 T
8/5/2020 0.00
8/6/2020 T
8/7/2020 0.00
8/8/2020 0.00
8/9/2020 0.00
8/10/2020 0.00
8/11/2020 0.00
8/12/2020 0.00
8/13/2020 0.00
8/14/2020 0.00
8/15/2020 0.00
8/16/2020 0.00
8/17/2020 0.00
8/18/2020 0.00
8/19/2020 0.00
8/20/2020 T
8/21/2020 0.02
8/22/2020 T
8/23/2020 0.00
8/24/2020 0.00
8/25/2020 0.00
8/26/2020 0.00
8/27/2020 T
8/28/2020 0.08
8/29/2020 0.08
8/30/2020 0.01
8/31/2020 **
9/1/2020 **
9/2/2020 **
9/3/2020 **
9/4/2020 **
9/5/2020 **
9/6/2020 **
9/7/2020 0.02
9/8/2020 0.36
9/9/2020 0.66
9/10/2020 0.00
9/11/2020 0.00
9/12/2020 0.00
9/13/2020 0.00
9/14/2020 0.00
9/15/2020 0.00
9/16/2020 0.00
9/17/2020 0.00
9/18/2020 0.00
9/19/2020 0.00
9/20/2020 0.00
9/21/2020 0.00
9/22/2020 0.00
9/23/2020 0.00
9/24/2020 0.00
9/25/2020 0.00
9/26/2020 0.00
9/27/2020 0.00
9/28/2020 T
9/29/2020 0.00
9/30/2020 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2019 7:00 AM 0.03 0.0 0.00 0.0 0.00 Temperature dipped sharply just before 6 PM; Measurable rain started about 5:30 AM
10/2/2019 7:00 AM 0.17 0.0 0.00 0.0 0.00 .02 shortly after 7 AM yesterday; Drizzle throughout the day, light showers evening and night until about 4 AM; still cloudy, but nothing measurable since then.
10/3/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00
10/4/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/5/2019 7:00 AM 0.00 0.0 M M M
10/6/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/8/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/9/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/10/2019 7:00 AM 0.13 1.1 0.08 1.0 M Snowing heavily at observation time. One tenth inch of rain recorded by VUE at 10:50 PM. Wind came in about 4:30 PM with rapid temperature drop, small twigs blown of cottonwoods especially.
10/11/2019 7:00 AM 0.15 1.0 0.12 2.0 M 2.3 inches measured at 11:30 AM just after the sun came out while still snowing. Additional .1 to .2 after dark. Measurement and core given for this morning.
10/12/2019 7:00 AM 0.00 0.0 0.00 T T
10/13/2019 7:00 AM 0.00 0.0 0.00 T T A small amount of snow/ice in the shadiest places.
10/14/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/16/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/17/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/18/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/19/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/21/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/22/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/23/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/24/2019 7:00 AM 0.27 3.1 0.26 3.0 M Light rain beginning 6 PM, changing to snow about 9 PM, all snow by about 9:15. Stopped before 7 AM
10/25/2019 7:00 AM 0.00 0.0 0.00 0.5 0.00 Up to 2 inches remain in the shade, melted in the sunny areas. Sidewalks and streets never collected.
10/26/2019 7:00 AM 0.00 0.0 0.00 T T Only a slight smear of snow in the shadiest areas, melting at observation time.
10/27/2019 7:00 AM 0.07 0.3 T 0.5 M Precipitation began after midnight, before 4:15 AM. Snow began to show by 6:30 AM. Patchy accumulation on sidewalks and street.
10/28/2019 7:00 AM 0.34 3.8 0.31 0.4 M Snowing throughout the day yesterday with little accumulation, still snowing very lightly at observation time.
10/29/2019 7:00 AM 0.14 2.2 0.14 4.5 M Snow depth ranging from more than 5 inches in shady sheltered areas to 3.5-4 in sunny areas. Several hours of sunshine yesterday afternoon cleared shovelled areas, but now cold and not melting under the new snow. Snowing fine snow at 7 AM
10/30/2019 7:00 AM 0.25 2.8 0.24 6.0 M Periods of lots of fine flakes, but too cold for much accumulation. Not snowing at observation time.
10/31/2019 7:00 AM T T T 5.0 M Mid morning flurries, then blue sky starting to show. Clear skies in the night and this morning.
11/1/2019 7:00 AM 0.00 0.0 0.00 4.5 M 5 inches in shade, 4 in sun
11/2/2019 7:00 AM 0.00 0.0 0.00 2.5 M Snow depths ranging from bare ground in some areas under trees/shrubbery, about 3 inches in sunny areas, 5 inches in shady areas.
11/3/2019 7:00 AM 0.00 0.0 0.00 2.5 M Average snow on the ground is a guesstimate. Some melting, finally. Range is 5 inches to bare ground.
11/4/2019 7:00 AM 0.00 0.0 0.00 1.0 M Snow on the ground is a guess, with about half clear sunny areas, up to an inch, and 1-2 inches in shady areas, except under trees/bushes, which is mostly clear.
11/5/2019 7:00 AM 0.00 0.0 0.00 0.5 M
11/6/2019 7:00 AM 0.00 0.0 0.00 T M
11/7/2019 7:00 AM 0.07 0.0 0.00 T M Fine rain starting about 4 PM froze on cool surfaces overnight. No new snow evident.
11/8/2019 7:00 AM 0.00 0.0 0.00 T M
11/9/2019 7:00 AM 0.00 0.0 0.00 T M Icy snow is slowly melting in the shade, now patchy there.
11/10/2019 7:00 AM 0.00 0.0 0.00 T T The snow is down to a few small patches.
11/11/2019 7:00 AM 0.09 1.6 0.06 1.5 M Ice had deposited on the outside of the cylinder. Started prior to 4 AM, after 11 PM
11/12/2019 7:00 AM T T T 0.5 M Main storm ended by 7:30 AM. Possible additional traces as the clouds broke up, but no evidence.
11/13/2019 7:00 AM 0.00 0.0 0.00 T T
11/14/2019 7:00 AM 0.00 0.0 M M M
11/15/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/16/2019 7:00 AM 0.00 0.0 M M M
11/17/2019 7:00 AM 0.00 0.0 M M M
11/18/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Breezy with temperature above 50 degrees F all night (low temperature about 48 from 5-7 PM)
11/19/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/20/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/21/2019 7:00 AM 0.26 0.7 M 0.5 M Rain had changed to snowflakes by 4:25 PM; accumulation noted by 6:30 PM. Snow iced to snowboard, could not get good core.
11/22/2019 7:00 AM 0.13 1.7 0.12 1.5 M Slushy accumulation on sidewalks and streets. Not snowing at 7 AM. Most of the snow fell overnight.
11/23/2019 7:00 AM T T T 1.0 M
11/24/2019 7:00 AM 0.00 0.0 0.00 T M
11/25/2019 7:00 AM 0.00 0.0 0.00 T T
11/26/2019 7:00 AM 1.33 13.8 1.51 14.0 M Approx. 3.5-4 inch cone on top of filled cylinder. Began as snow, accumulating on road by 4 PM; Approx. 2.5 inches by 7 PM. Still snowing and accumulating at 7 AM.
11/27/2019 7:00 AM 0.30 3.5 0.30 16.0 M Snow board measured at 12:15 PM when the snow had nearly stopped. A few flakes noted later.
11/28/2019 7:00 AM 0.00 0.0 0.00 12.0 M Snow that was slushy on surfaces at the bottom of the snow is now ice. Sunny but cold through yesterday.
11/29/2019 7:00 AM 0.00 0.0 0.00 9.5 M Moderate fog this morning (visibility at least 200 yards)
11/30/2019 7:00 AM 0.05 0.3 0.02 10.0 M snow was noted to have begun collecting by 6 PM. Highest gust measured at 16 mph about 2:30 AM, most gusts about 10 mph
12/1/2019 7:00 AM 0.00 0.0 0.00 9.5 1.18 Frequent measured gusts in excess of 20 MPH between 10 and 4 PM caused drifting snow and cleared most of the snow from smaller branches. Snow on the ground values are approximate.
12/2/2019 7:00 AM 0.00 0.0 0.00 7.0 1.22 The snow higher on Gunbarrel Hill (treeless former fields) shows many large bare patches, but here on the south side and among the trees, there are none.
12/3/2019 7:00 AM 0.00 0.0 M 5.0 M Windy, mostly 10 to 25 MPH measured, through the night with temperatures mostly between 45 and 50 degrees F. Snow is very well packed and icy.
12/4/2019 7:00 AM 0.00 0.0 0.00 3.5 M
12/5/2019 7:00 AM T M M 3.0 M Light, misting rain about 6:30 AM
12/6/2019 7:00 AM 0.13 T T 2.0 M
12/7/2019 7:00 AM 0.00 0.0 0.00 2.0 M snow level ranging from nearly 5 inches in the most protected and drift areas to none in the surriest, wind blown areas. The street is still quite icy.
12/8/2019 7:00 AM 0.00 0.0 0.00 1.0 M Slowly melting out
12/9/2019 7:00 AM T T T 1.0 M A few new snowflakes on the ground at observation time
12/10/2019 7:00 AM 0.00 0.0 0.00 0.5 M Significant bare patches, although 4-5 inches of icy snow still remains in protected areas.
12/11/2019 7:00 AM 0.00 0.0 0.00 0.5 M Snow levels little changed from yesterday.
12/12/2019 7:00 AM 0.00 0.0 0.00 0.5 M Temperature mostly above freezing all night.
12/13/2019 7:00 AM 0.00 0.0 0.00 0.5 M
12/14/2019 7:00 AM 0.00 0.0 0.00 0.5 M Still over 3 inches of snow in the neighborhood north yards, .5 to 1 inch of icy snow in the south yards, bare on west and south west facing slopes. There is still ice and icy snow on the roads.
12/15/2019 7:00 AM T 0.1 T 0.5 M Flakes of snow 12:30 PM, light snow mid afternoon with .1 accumulation at that time. None of the new snow left this morning.
12/16/2019 7:00 AM 0.00 0.0 0.00 0.5 M This snow is hanging on way to long. Snow levels are essentially unchanged.
12/17/2019 7:00 AM 0.00 0.0 0.00 0.5 M
12/18/2019 7:00 AM 0.00 0.0 0.00 0.5 M
12/19/2019 7:00 AM 0.00 0.0 0.00 0.5 M The snow turned to ice continues a very slow decrease.
12/20/2019 7:00 AM 0.00 0.0 0.00 0.5 M
12/21/2019 7:00 AM 0.00 0.0 0.00 0.5 M Still 4 inches of snow in undrifted, well shaded areas. Bare areas are gradually expanding, and partially shaded areas have mostly 1-2 inches.
12/22/2019 7:00 AM 0.00 0.0 0.00 0.5 M
12/23/2019 7:00 AM 0.00 0.0 0.00 0.5 M Shady areas still 3-4 inches, with 1-2 inches in partially shaded areas. So, while the grasslands around the subdivision are at "T", we continue to report ".5"
12/24/2019 7:00 AM 0.00 0.0 0.00 0.5 M Very cloudy all day. Despite mild temperatures, the snow did not go down much.
12/25/2019 7:00 AM 0.00 0.0 0.00 0.5 M Snow on the ground is down incrementally, but the depth of snow in the even partially shaded areas still brings the average above .25 inches. Even the grasslands and bare fields around still have significant snow patches.
12/26/2019 7:00 AM T 0.0 0.00 0.5 M A drop of water observed in the cylinder at 8:30 PM when we arrived home plus a few drops on hard surfaces; a few drops in the cylinder this morning. Foggy and frost at observation time
12/27/2019 7:00 AM T M M 0.5 M
12/28/2019 7:00 AM 0.17 3.2 0.23 3.5 M
12/29/2019 7:00 AM 0.01 0.3 0.01 2.5 M
12/30/2019 7:00 AM 0.00 0.0 0.00 2.0 M
12/31/2019 7:00 AM 0.00 0.0 0.00 1.0 M
1/1/2020 7:00 AM 0.00 0.0 0.00 0.5 M
1/2/2020 7:00 AM 0.00 0.0 0.00 0.5 M Mildly chinook winds afternoon and evening.
1/3/2020 7:00 AM 0.00 0.0 0.00 0.5 M
1/4/2020 7:00 AM 0.00 0.0 0.00 T M Although shade patches are still 2-3 inches deep, areas receiving partial sun are pretty well melted.
1/5/2020 7:00 AM 0.00 0.0 0.00 T M Warm strong winds in the night, with gusts measured to 40 MPH despite our wind gauge's somewhat protected location. Above 40 degrees until about 2:30 AM. The north side yards of our house and the neighbors are finally showing patches of ground.
1/6/2020 7:00 AM 0.00 0.0 0.00 T M
1/8/2020 7:00 AM 0.00 0.0 0.00 T M
1/10/2020 7:00 AM 0.00 0.0 0.00 T M
1/11/2020 7:00 AM 0.00 0.0 0.00 T M
1/12/2020 7:00 AM 0.00 0.0 0.00 T M
1/13/2020 7:00 AM 0.00 0.0 0.00 T M The white ice pack in the shady parts of the yards continued. It is so hard I couldn't get a core to see how much water it holds.
1/15/2020 7:00 AM 0.00 0.0 0.00 T M
1/16/2020 7:00 AM 0.00 0.0 0.00 T M
1/17/2020 7:00 AM 0.00 0.0 0.00 T M
1/18/2020 7:00 AM 0.00 0.0 0.00 T M The frozen in snow continues in shaded areas, both in yards and in the shadow of small bushes in the open space grasslands
1/19/2020 7:00 AM 0.00 0.0 0.00 T M
1/20/2020 7:00 AM 0.00 0.0 0.00 T M The iced in snow field in the north yard is relatively unchanged from last week.
1/21/2020 7:00 AM 0.00 0.0 0.00 T M
1/22/2020 7:00 AM 0.00 0.0 0.00 T M
1/23/2020 7:00 AM 0.00 0.0 0.00 T M Warm windy day yesterday eroded the snow/ice some
1/24/2020 7:00 AM 0.00 0.0 0.00 T M
1/25/2020 7:00 AM 0.00 0.0 0.00 T M
1/26/2020 7:00 AM 0.00 0.0 0.00 T M
1/27/2020 7:00 AM 0.00 0.0 0.00 T M The frozen in snow patches are very gradually decreasing.
1/28/2020 7:00 AM 0.00 0.0 0.00 T M
1/29/2020 7:00 AM 0.00 0.0 0.00 T M
1/30/2020 7:00 AM T T T T M Just enough to dampen the ground.
1/31/2020 7:00 AM 0.00 0.0 0.00 T M Fog and frost in the morning, but no evidence of precip.
2/1/2020 7:00 AM 0.00 0.0 0.00 T M Warming wind started about 2 AM, the backyard snow may actually go!
2/2/2020 7:00 AM 0.00 0.0 0.00 T M Just a couple dozen patches of ice/snow are left on the north side of our house
2/3/2020 7:00 AM 0.07 T T T M Misting freezing rain at observation time with a few patches of snow and a few flakes of "snizzle" coming down. The previous snow had finally gone after 70+ degrees and windy yesterday.
2/4/2020 7:00 AM 0.38 5.6 0.33 5.5 0.32 Changed to all snow before 8 AM yesterday, light powder snow. Some wind at times
2/5/2020 7:00 AM T 0.2 M 4.0 M
2/6/2020 7:00 AM 0.00 0.0 0.00 3.0 M
2/7/2020 7:00 AM 0.24 M M 7.0 M Not able to get clean snowboard reading because of drifting snow, but new snow was between 4 and 5 inches. Snow began after 6 PM but it appeared a couple inches were on the ground by 9 PM
2/8/2020 7:00 AM 0.07 0.7 0.07 6.5 M Light snow off and on all day
2/11/2020 7:00 AM 0.27 3.8 0.26 8.0 M
2/12/2020 7:00 AM 0.00 0.0 0.00 5.0 M
2/13/2020 7:00 AM 0.16 M M 10.0 M
2/14/2020 7:00 AM 0.00 0.0 0.00 8.0 M
2/15/2020 7:00 AM 0.00 0.0 0.00 6.0 M
2/16/2020 7:00 AM 0.00 0.0 0.00 4.0 M
2/17/2020 7:00 AM 0.00 0.0 0.00 4.0 M
2/18/2020 7:00 AM 0.02 0.2 M 3.0 M Bare patches had begun to appear
2/19/2020 7:00 AM 0.00 0.0 0.00 2.0 M
2/20/2020 7:00 AM 0.10 1.8 M 5.0 M Light snow all day not collecting until 3:45 PM. Not snowing at 8:30 PM
2/22/2020 7:00 AM 0.00 0.0 0.00 4.0 M
2/23/2020 7:00 AM 0.00 0.0 0.00 2.0 M Snow Measurements range from 0 to 5 inches
2/24/2020 7:00 AM T T T 1.0 M Light morning snow
2/25/2020 7:00 AM 0.00 0.0 0.00 0.5 M Some wind, but no precipitation noted
2/26/2020 7:00 AM 0.00 0.0 0.00 0.5 M
2/27/2020 7:00 AM 0.00 0.0 0.00 0.5 M
2/28/2020 7:00 AM 0.00 0.0 0.00 T M
2/29/2020 7:00 AM 0.00 0.0 0.00 T M
3/1/2020 7:00 AM 0.00 0.0 0.00 T M
3/2/2020 7:00 AM 0.29 3.1 0.27 3.0 0.27 started as snow
3/3/2020 7:00 AM 0.00 0.0 M M M
3/4/2020 7:00 AM 0.00 0.0 0.00 T M
3/9/2020 7:00 AM 0.29 0.0 0.00 0.0 0.00
3/10/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/11/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/12/2020 7:00 AM 0.00 0.0 M M M
3/13/2020 7:00 AM T T T 0.0 0.00 Occasional falling flakes observed through the afternoon, melting on contact with surfaces
3/14/2020 7:00 AM 0.09 0.3 M 0.5 M Light snow starting 10:20 AM continuing off and on without accumulation until about 6:15 PM when large to very large flake clumps started to fall. Ice on snowboard mad a good core not possible.
3/15/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Grey and cloudy with a cold wind through the morning and into the afternoon.
3/16/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/17/2020 7:00 AM T 0.0 0.00 0.0 0.00 Just started misting at observation time
3/18/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/19/2020 7:00 AM 0.11 0.0 0.00 0.0 0.00 Brief shower about 6:15 PM, consistent rain started later.
3/20/2020 7:00 AM 1.13 5.9 1.00 6.0 M Changed to snow by 10 AM. Interesting effect in the cylinder, with an inch of ice (frozen slush) topped with about three inches of snow.
3/21/2020 7:00 AM T T T 5.0 0.74 Flurries off and on through the day. Fog coming in this morning.
3/23/2020 7:00 AM 0.00 0.0 0.00 T M
3/24/2020 7:00 AM 0.00 0.0 0.00 T M
3/25/2020 7:00 AM 0.00 0.0 0.00 T T About and inch of snow left in the most protected areas. Temperatures hovered around 45 degrees from midnight
3/27/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/28/2020 7:00 AM 0.27 0.8 0.15 0.5 M Light rain started 4:25 PM; started changing to snow 5:25 PM; started collecting 5:55 PM.
3/29/2020 7:00 AM 0.00 0.0 0.00 T T
3/30/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Last of snow gone by mid-afternoon
4/1/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/2/2020 7:00 AM 0.07 0.0 0.00 0.0 0.00 .03 measured by electronic gauge between 11 PM and 5 AM; moisture after that was frozen. Some surfaces very icy.
4/3/2020 7:00 AM 0.06 0.6 M 0.5 M
4/4/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/7/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/9/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Breezy
4/12/2020 7:00 AM 0.37 4.6 0.38 4.5 M Winds gusting starting 10:15 PM. Not yet snowing 2 AM. Snowing at observation time.
4/13/2020 7:00 AM 0.33 5.1 0.22 8.0 M Snow fell essentially all day. Morning accumulation of estimated 1.5 to 2 inches was gone from the snowboard when checked at noon. New accumulation was mostly after dark. Still snowing lightly at 7 AM.
4/14/2020 7:00 AM 0.06 M M 4.5 M Only frost on the snow board, although it snowed or flurried most of the day yesterday. About 1 inch of accumulation observed on the shaded back deck in late morning. Bright sun and blue skies this morning.
4/15/2020 7:00 AM 0.00 0.0 0.00 T M Less than 50% coverage, but up to 5 inches in the deep shade. Sunny all day yesterday
4/16/2020 7:00 AM M 12.0 1.08 12.0 M cylinder only filled about 1/3 with snow, then had an 8 cap leaning to the side, which mostly fell off when I tried to get it into the cylinder. Measured at .67 in. of moisture. Light rain started 5:55 PM; snow starting to accumulate by 7:30 PM.
4/17/2020 7:00 AM 0.34 3.1 M 12.0 M Light snow continuing until after dark; clear skies this morning.
4/18/2020 7:00 AM 0.00 0.0 0.00 5.0 M Sunny all day yesterday.
4/19/2020 7:00 AM T 0.0 0.00 0.0 0.00 Two drops in the cylinder after mid-afternoon shower
4/20/2020 7:00 AM 0.00 0.0 0.00 T T
4/21/2020 7:00 AM 0.00 0.0 M M M
4/22/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/23/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/24/2020 7:00 AM 0.17 0.0 0.00 0.0 0.00 Rain overnight
4/25/2020 7:00 AM T 0.0 0.00 0.0 0.00
4/26/2020 7:00 AM 0.00 0.0 M M M
4/27/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/28/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/29/2020 7:00 AM 0.00 0.0 M M M
4/30/2020 7:00 AM 0.00 0.0 M M M
5/1/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Cloudy all day, wind changed from SE to W about 6 pm, and the temperature rose about 4 degrees to about 82.
5/2/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Foggy this morning, but no evidence of precip.
5/3/2020 7:00 AM 0.12 0.0 0.00 0.0 0.00 At least three separate cells, about 6 PM, 8:30 - 9 PM, and 11:45 PM. Some large/noisy drops, but no hail seen, nor hail damage to tender leaves
5/4/2020 7:00 AM 0.07 0.0 0.00 0.0 0.00 Trace about 6 PM; Thunder between about 11:30 PM and 12:30 AM without measurable rain; measurable rain between 4 and 4:30 AM; heaviest shower between 6:30 and 7:00 AM
5/5/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Dry and breezy
5/6/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/7/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/8/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/9/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/10/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/11/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/12/2020 7:00 AM 0.19 0.0 0.00 0.0 0.00 Mist hanging in the air but not falling at observation time.
5/13/2020 7:00 AM T 0.0 0.00 0.0 0.00 Late afternoon, noticed wet surfaces
5/14/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/15/2020 7:00 AM 0.05 0.0 0.00 0.0 0.00 Light rain about 2:30 PM with continuous thunder; second measurable precip. about 6:30 PM
5/16/2020 7:00 AM 0.28 0.0 0.00 0.0 0.00 Trace in the early afternoon; small hail enough to nearly cover the ground 5:59-6:02 PM, lull then heavy rain. Hail report filed.
5/17/2020 7:00 AM 0.00 0.0 M M M
5/18/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Dew overnight
5/19/2020 7:00 AM 0.00 0.0 M M M
5/20/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Wind gust measured to 35 mph about 8 PM
5/21/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Dry winds, especially after noon; frequent gusting to near 30 MPH noon to 3 PM.
5/22/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/23/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/24/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/25/2020 7:00 AM 0.98 0.0 0.00 0.0 0.00 Occasional heavier short periods, but mostly just steady moderate rain. Sunny this morning
5/26/2020 7:00 AM T 0.0 0.00 0.0 0.00 brief afternoon shower
5/27/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/30/2020 7:00 AM T 0.0 0.00 0.0 0.00 Short shower about 10 PM, enough for a couple degree dip in temperature.
5/31/2020 7:00 AM 0.10 M M M M trace at 12:30; measurable amount started with heavy shower
6/1/2020 7:00 AM 0.01 M M M M
6/2/2020 7:00 AM 0.00 0.0 M M M
6/3/2020 7:00 AM 0.00 0.0 M M M
6/4/2020 7:00 AM 0.00 0.0 M M M
6/5/2020 7:00 AM 0.01 M M M M Accompanied by wind measured to 44 mph
6/6/2020 7:00 AM 0.00 0.0 M M M
6/7/2020 7:00 AM 0.06 M M M M Lots of wind, breaking small branches and lots of twigs. About two hours (1:45 to 3:45 PM) of wind gusts consistently over 20 mph (peak measured 33 mph) calming soon after the rain came.
6/8/2020 7:00 AM 0.00 0.0 M M M
6/9/2020 7:00 AM 0.50 M M M M Steady, mostly light rain all night.
6/10/2020 7:00 AM 0.00 0.0 M M M No rain noted after 7 AM yesterday, despite early morning heavy clouds. Some sun by 9 AM; sunny with cold wind the rest of the day.
6/11/2020 7:00 AM 0.00 0.0 M M M
6/12/2020 7:00 AM 0.00 0.0 M M M
6/13/2020 7:00 AM 0.00 0.0 M M M
6/14/2020 7:00 AM 0.25 M M M M Short, windy showers. Most of precip in 4:15 shower, which VUE showed rain rates above 2.5 for ten minutes.
6/15/2020 7:00 AM 0.00 0.0 M M M
6/16/2020 7:00 AM 0.00 0.0 M M M Orange tint to the sunlight yesterday, which I associate with smoke high in the air.
6/17/2020 7:00 AM T M M M M A few drops made it to the ground.
6/18/2020 7:00 AM 0.00 0.0 M M M
6/19/2020 7:00 AM 0.88 M M M M Never hard, but steady. First shower 1:25 PM, more continuous starting about 3 PM. Clouds breaking and sun beginning to shine at 7 AM.
6/20/2020 7:00 AM 0.28 M M M M Several light showers with one brief heavy shower accounting for almost all the measurable rain.
6/21/2020 7:00 AM 0.00 0.0 M M M
6/22/2020 7:00 AM T 0.0 M M M
6/23/2020 7:00 AM 0.00 0.0 M M M
6/24/2020 7:00 AM 0.00 0.0 M M M
6/26/2020 7:00 AM T M M M M
6/27/2020 7:00 AM 0.28 M M M M Two rounds of a little bit of small hail (reported); rain came down hard for short times
6/28/2020 7:00 AM 0.00 0.0 M M M
6/29/2020 7:00 AM 0.00 0.0 M M M
6/30/2020 7:00 AM 0.00 M M M M
7/1/2020 7:00 AM 0.06 M M M M
7/2/2020 7:00 AM 0.00 0.0 M M M
7/3/2020 7:00 AM 0.00 0.0 M M M Hot, breezy, and dry
7/4/2020 7:00 AM 0.00 0.0 M M M
7/5/2020 7:00 AM 0.00 0.0 M M M
7/6/2020 7:00 AM 0.00 0.0 M M M
7/7/2020 7:00 AM 0.00 0.0 M M M
7/8/2020 7:00 AM 0.00 0.0 M M M
7/9/2020 7:00 AM 0.00 0.0 M M M
7/10/2020 7:00 AM 0.00 0.0 M M M
7/11/2020 7:00 AM 0.00 0.0 M M M VUE reported high of 99.8 F
7/12/2020 7:00 AM 0.00 0.0 M M M
7/13/2020 7:00 AM 0.00 0.0 M M M
7/14/2020 7:00 AM 0.07 M M M M
7/15/2020 7:00 AM 0.03 M M M M light showers scattered through the day.
7/16/2020 7:00 AM 0.00 0.0 M M M
7/17/2020 7:00 AM 0.00 0.0 M M M
7/18/2020 7:00 AM 0.00 0.0 M M M
7/19/2020 7:00 AM T M M M M
7/20/2020 7:00 AM 0.00 0.0 M M M
7/21/2020 7:00 AM 0.00 0.0 M M M
7/22/2020 7:00 AM 0.00 0.0 M M M
7/23/2020 7:00 AM 0.01 M M M M Nice cooling, anyway. Cool, gusty wind mosty proceeding rain.
7/24/2020 7:00 AM T M M M M
7/25/2020 7:00 AM 0.21 M M M M gentle rain on and off for hours
7/26/2020 7:00 AM 0.05 M M M M
7/27/2020 7:00 AM 0.00 0.0 M M M
7/28/2020 7:00 AM 0.00 0.0 M M M
7/29/2020 7:00 AM 0.04 M M M M
7/30/2020 7:00 AM 0.03 M M M M
7/31/2020 7:00 AM T M M M M
8/1/2020 7:00 AM 0.04 M M M M
8/2/2020 7:00 AM T M M M M
8/3/2020 7:00 AM 0.00 0.0 M M M
8/4/2020 7:00 AM T M M M M
8/5/2020 7:00 AM 0.00 0.0 M M M
8/6/2020 7:00 AM T M M M M
8/7/2020 7:00 AM 0.00 0.0 M M M
8/8/2020 7:00 AM 0.00 0.0 M M M
8/9/2020 7:00 AM 0.00 0.0 M M M
8/10/2020 7:00 AM 0.00 0.0 M M M
8/11/2020 7:00 AM 0.00 0.0 M M M
8/12/2020 7:00 AM 0.00 0.0 M M M
8/13/2020 7:00 AM 0.00 0.0 M M M
8/14/2020 7:00 AM 0.00 0.0 M M M
8/15/2020 7:00 AM 0.00 0.0 M M M
8/16/2020 7:00 AM 0.00 0.0 M M M
8/17/2020 7:00 AM 0.00 0.0 M M M
8/18/2020 7:00 AM 0.00 0.0 M M M
8/19/2020 7:00 AM 0.00 0.0 M M M
8/20/2020 7:00 AM T M M M M At least 3 light episodes. No accumulation.
8/21/2020 7:00 AM 0.02 M M M M A trace earlier in the day as well.
8/22/2020 7:00 AM T M M M M
8/23/2020 7:00 AM 0.00 0.0 M M M
8/24/2020 7:00 AM 0.00 0.0 M M M
8/25/2020 7:00 AM 0.00 0.0 M M M
8/26/2020 7:00 AM 0.00 0.0 M M M
8/27/2020 7:00 AM T M M M M It smelled like rain a couple times, but only a few drops made it down.
8/28/2020 7:00 AM 0.08 M M M M
8/29/2020 7:00 AM 0.08 M M M M Glorious, cool light rain starting in the afternoon still continuing this morning
8/30/2020 7:00 AM 0.01 M M M M
9/8/2020 7:00 AM 0.36 0.0 0.00 0.0 0.00 All rain so far. Electronic gauge shows very steady light rain all night, continuing at observation time.
9/9/2020 7:00 AM 0.66 2.1 0.33 T M Rain early, rain-snow mix through the day began accumulating approx. 5 PM, noted to be measurable shortly after 5 PM. Temperature has stayed right about freezing at lowest. Snow on the ground is on some of the grassy and wood areas only; 2 inches where accumulated, less on roofs, none on streets and where grass is sheltered, less on trees. The east side of the cylinder was plastered with snow. Not snowing at 7 AM
9/10/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/11/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 Very cloudy all day, sometimes looking like it might rain, but none noted.
9/12/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/13/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/14/2020 7:00 AM 0.00 0.0 M M M
9/15/2020 7:00 AM 0.00 0.0 M M M
9/16/2020 7:00 AM 0.00 0.0 M M M
9/17/2020 7:00 AM 0.00 0.0 M M M
9/18/2020 7:00 AM 0.00 0.0 M M M
9/19/2020 7:00 AM 0.00 0.0 M M M
9/20/2020 7:00 AM 0.00 0.0 M M M
9/21/2020 7:00 AM 0.00 0.0 M M M
9/22/2020 7:00 AM 0.00 0.0 M M M
9/23/2020 7:00 AM 0.00 0.0 M M M
9/24/2020 7:00 AM 0.00 0.0 M M M
9/25/2020 7:00 AM 0.00 0.0 M M M
9/26/2020 7:00 AM 0.00 0.0 M M M
9/27/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/28/2020 7:00 AM T 0.0 0.00 0.0 0.00 It tried.
9/29/2020 7:00 AM 0.00 0.0 M M M
9/30/2020 7:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
2/9/2020 2/10/2020 7:00 AM 2 0.27 5.0 M
3/5/2020 3/08/2020 7:00 AM 4 0.00 0.0 0.00
8/31/2020 9/07/2020 7:00 AM 8 0.02 M M of very gray (from all the smoke in the air) water and larger ash particles



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
5/15/2020 5:59 PM 3/8" 1/4" Pea Size Rice Hard|Clear Ice|White Ice 3 1min no damage Continuous False After rain Same time as smaller hail vertical
6/26/2020 3:49 PM Sparse, but coming after very large raindrops 1/4" Pea Size Rice Rice White Ice 3 1min no damage Continuous True After rain After smaller hail
6/26/2020 4:19 PM A little more hail, but still sparse. 3/8" 1/4" Pea Size Rice White Ice 2 minor leaf damage Continuous True After rain After smaller hail