Station Overview Station Location
Station Number MT-GN-11 Latitude 45.6578
Station Name Bozeman 1.5 SSE Longitude -111.0272
County Gallatin Elevation (ft) 4938



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 1.72 2.59 31 2.59 31 0.00 0 0 15 3 19.1 10 13
Nov 19 1.18 1.36 30 1.36 30 0.00 0 0 12 5 13.2 8 18
Dec 19 0.87 0.20 31 0.20 31 0.00 0 0 7 3 2.3 6 31
Jan 20 0.84 0.75 31 0.75 31 0.00 0 0 12 5 7.3 13 31
Feb 20 0.79 2.35 29 2.35 29 0.00 0 0 17 3 30.2 17 29
March 20 1.37 1.68 31 1.68 31 0.00 0 0 13 7 14.4 13 27
April 20 2.29 1.55 30 1.55 30 0.00 0 0 10 4 14.4 6 9
May 20 3.15 1.65 31 1.65 31 0.00 0 0 17 4 0.0 0 0
June 20 3.15 3.18 30 3.18 30 0.00 0 0 16 5 0.0 0 0
July 20 1.50 0.54 31 0.54 31 0.00 0 0 9 3 0.0 0 0
Aug 20 1.41 1.17 31 1.17 31 0.00 0 0 5 4 0.0 0 0
Sept 20 1.46 0.66 30 0.66 30 0.00 0 0 4 1 0.3 1 1
Water Year Totals: 19.73" 17.68" 366 days 17.68" 366 0.00" 0 days 0 137 days 47 days 101.2" 74 days 159 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 0.15
10/2/2019 T
10/3/2019 0.02
10/4/2019 0.00
10/5/2019 0.14
10/6/2019 0.02
10/7/2019 0.00
10/8/2019 0.00
10/9/2019 0.20
10/10/2019 0.26
10/11/2019 0.00
10/12/2019 0.00
10/13/2019 0.00
10/14/2019 0.00
10/15/2019 0.00
10/16/2019 0.00
10/17/2019 0.00
10/18/2019 0.48
10/19/2019 T
10/20/2019 0.26
10/21/2019 0.10
10/22/2019 T
10/23/2019 0.04
10/24/2019 0.09
10/25/2019 0.00
10/26/2019 0.26
10/27/2019 0.37
10/28/2019 0.01
10/29/2019 0.19
10/30/2019 0.00
10/31/2019 0.00
11/1/2019 0.07
11/2/2019 0.00
11/3/2019 0.00
11/4/2019 0.01
11/5/2019 0.04
11/6/2019 0.00
11/7/2019 T
11/8/2019 0.00
11/9/2019 0.00
11/10/2019 0.01
11/11/2019 0.23
11/12/2019 0.00
11/13/2019 0.02
11/14/2019 0.00
11/15/2019 0.00
11/16/2019 T
11/17/2019 T
11/18/2019 0.02
11/19/2019 0.00
11/20/2019 0.34
11/21/2019 T
11/22/2019 0.00
11/23/2019 0.00
11/24/2019 0.00
11/25/2019 0.00
11/26/2019 0.10
11/27/2019 T
11/28/2019 0.06
11/29/2019 0.07
11/30/2019 0.39
12/1/2019 0.01
12/2/2019 0.01
12/3/2019 0.00
12/4/2019 0.00
12/5/2019 0.00
12/6/2019 0.00
12/7/2019 0.00
12/8/2019 T
12/9/2019 0.07
12/10/2019 0.00
12/11/2019 0.00
12/12/2019 0.00
12/13/2019 0.00
12/14/2019 T
12/15/2019 0.02
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 0.03
12/26/2019 0.04
12/27/2019 0.00
12/28/2019 T
12/29/2019 0.02
12/30/2019 0.00
12/31/2019 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2020 0.08
1/2/2020 0.08
1/3/2020 0.00
1/4/2020 0.00
1/5/2020 0.02
1/6/2020 0.00
1/7/2020 0.00
1/8/2020 0.00
1/9/2020 0.04
1/10/2020 0.05
1/11/2020 T
1/12/2020 0.00
1/13/2020 0.00
1/14/2020 T
1/15/2020 0.10
1/16/2020 0.00
1/17/2020 0.00
1/18/2020 0.01
1/19/2020 0.00
1/20/2020 0.00
1/21/2020 0.00
1/22/2020 0.06
1/23/2020 T
1/24/2020 0.01
1/25/2020 T
1/26/2020 T
1/27/2020 0.19
1/28/2020 0.00
1/29/2020 0.04
1/30/2020 0.07
1/31/2020 0.00
2/1/2020 0.00
2/2/2020 0.15
2/3/2020 0.48
2/4/2020 T
2/5/2020 0.05
2/6/2020 0.36
2/7/2020 0.25
2/8/2020 0.05
2/9/2020 0.34
2/10/2020 0.12
2/11/2020 0.00
2/12/2020 0.02
2/13/2020 0.06
2/14/2020 0.00
2/15/2020 0.02
2/16/2020 0.05
2/17/2020 0.02
2/18/2020 0.04
2/19/2020 0.03
2/20/2020 T
2/21/2020 0.00
2/22/2020 0.00
2/23/2020 0.00
2/24/2020 0.06
2/25/2020 0.25
2/26/2020 T
2/27/2020 0.00
2/28/2020 0.00
2/29/2020 0.00
3/1/2020 0.01
3/2/2020 0.00
3/3/2020 T
3/4/2020 0.00
3/5/2020 0.00
3/6/2020 0.00
3/7/2020 0.00
3/8/2020 0.54
3/9/2020 0.03
3/10/2020 0.06
3/11/2020 0.00
3/12/2020 T
3/13/2020 T
3/14/2020 0.01
3/15/2020 0.20
3/16/2020 0.03
3/17/2020 0.00
3/18/2020 0.03
3/19/2020 0.02
3/20/2020 T
3/21/2020 0.00
3/22/2020 0.00
3/23/2020 T
3/24/2020 0.25
3/25/2020 0.14
3/26/2020 0.08
3/27/2020 T
3/28/2020 0.00
3/29/2020 0.00
3/30/2020 T
3/31/2020 0.28
Day of YearDaily PrcpMultiday Prcp
4/1/2020 0.57
4/2/2020 0.02
4/3/2020 0.00
4/4/2020 0.00
4/5/2020 0.00
4/6/2020 0.00
4/7/2020 T
4/8/2020 0.00
4/9/2020 0.00
4/10/2020 0.00
4/11/2020 0.02
4/12/2020 0.22
4/13/2020 T
4/14/2020 0.00
4/15/2020 0.10
4/16/2020 0.35
4/17/2020 T
4/18/2020 0.00
4/19/2020 0.02
4/20/2020 0.00
4/21/2020 0.00
4/22/2020 0.00
4/23/2020 0.00
4/24/2020 0.16
4/25/2020 T
4/26/2020 0.00
4/27/2020 0.00
4/28/2020 0.07
4/29/2020 0.00
4/30/2020 0.02
5/1/2020 0.26
5/2/2020 0.00
5/3/2020 T
5/4/2020 0.26
5/5/2020 0.00
5/6/2020 0.00
5/7/2020 0.05
5/8/2020 0.02
5/9/2020 0.05
5/10/2020 0.00
5/11/2020 0.00
5/12/2020 0.03
5/13/2020 0.06
5/14/2020 0.03
5/15/2020 0.08
5/16/2020 0.11
5/17/2020 0.00
5/18/2020 0.00
5/19/2020 0.01
5/20/2020 T
5/21/2020 T
5/22/2020 0.08
5/23/2020 0.08
5/24/2020 0.41
5/25/2020 0.06
5/26/2020 0.05
5/27/2020 0.00
5/28/2020 0.00
5/29/2020 0.00
5/30/2020 0.01
5/31/2020 T
6/1/2020 0.00
6/2/2020 0.05
6/3/2020 T
6/4/2020 0.01
6/5/2020 T
6/6/2020 0.04
6/7/2020 0.52
6/8/2020 T
6/9/2020 0.25
6/10/2020 T
6/11/2020 0.00
6/12/2020 0.00
6/13/2020 0.00
6/14/2020 0.00
6/15/2020 0.18
6/16/2020 0.06
6/17/2020 0.36
6/18/2020 0.57
6/19/2020 0.01
6/20/2020 0.00
6/21/2020 0.04
6/22/2020 T
6/23/2020 0.00
6/24/2020 0.00
6/25/2020 0.31
6/26/2020 0.02
6/27/2020 0.00
6/28/2020 0.10
6/29/2020 0.58
6/30/2020 0.08
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.02
7/2/2020 0.06
7/3/2020 0.00
7/4/2020 0.04
7/5/2020 0.03
7/6/2020 0.01
7/7/2020 0.00
7/8/2020 0.03
7/9/2020 0.00
7/10/2020 0.07
7/11/2020 T
7/12/2020 0.00
7/13/2020 0.00
7/14/2020 0.00
7/15/2020 0.00
7/16/2020 0.00
7/17/2020 0.00
7/18/2020 T
7/19/2020 0.00
7/20/2020 0.00
7/21/2020 0.00
7/22/2020 0.00
7/23/2020 0.11
7/24/2020 0.17
7/25/2020 0.00
7/26/2020 0.00
7/27/2020 0.00
7/28/2020 0.00
7/29/2020 T
7/30/2020 0.00
7/31/2020 0.00
8/1/2020 0.00
8/2/2020 0.00
8/3/2020 0.00
8/4/2020 0.77
8/5/2020 0.00
8/6/2020 0.00
8/7/2020 0.03
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 0.06
8/14/2020 T
8/15/2020 0.00
8/16/2020 0.00
8/17/2020 0.00
8/18/2020 0.00
8/19/2020 T
8/20/2020 0.02
8/21/2020 T
8/22/2020 0.00
8/23/2020 0.00
8/24/2020 0.00
8/25/2020 0.00
8/26/2020 T
8/27/2020 0.29
8/28/2020 0.00
8/29/2020 0.00
8/30/2020 0.00
8/31/2020 0.00
9/1/2020 0.00
9/2/2020 0.00
9/3/2020 0.00
9/4/2020 0.00
9/5/2020 0.00
9/6/2020 0.00
9/7/2020 0.00
9/8/2020 0.46
9/9/2020 0.00
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 0.12
9/21/2020 0.00
9/22/2020 0.00
9/23/2020 0.01
9/24/2020 0.00
9/25/2020 0.00
9/26/2020 T
9/27/2020 0.07
9/28/2020 0.00
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 0.15 1.8 0.08 1.6 0.07 Very fluffy snow varied from >4" on railings and in the cylinder to ~2" on the board (from 1.5" to 2.2") to zero on some patches of grass and all rocks/pavement. The farther above the ground, the greater the observed depth.
10/2/2019 7:00 AM T T T T T
10/3/2019 7:00 AM 0.02 0.2 0.02 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 0.14 0.0 0.00 0.0 0.00
10/6/2019 7:00 AM 0.02 T T 0.0 0.00
10/7/2019 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 0.20 1.8 0.15 1.8 0.15
10/10/2019 7:00 AM 0.26 2.9 0.25 4.3 0.39
10/11/2019 7:00 AM 0.00 0.0 0.00 3.0 0.21 SWE is under-measured because some froze to the grass and could not be sampled.
10/12/2019 7:00 AM 0.00 0.0 0.00 0.6 0.20 Snowpack corrected for ~60% cover.
10/13/2019 7:00 AM 0.00 0.0 0.00 T T
10/14/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/15/2019 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 0.48 0.0 0.00 0.0 0.00
10/19/2019 7:00 AM T 0.0 0.00 0.0 0.00
10/20/2019 7:00 AM 0.26 1.7 0.21 1.7 0.21
10/21/2019 7:00 AM 0.10 1.1 0.05 1.8 0.19 0.6" fell yesterday morning, melted, and refroze on the board. Core SWE reflects overnight accumulation (0.50") only.
10/22/2019 7:00 AM T T T T T
10/23/2019 7:00 AM 0.04 0.0 0.00 0.0 0.00
10/24/2019 7:00 AM 0.09 0.0 0.00 0.0 0.00
10/25/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/26/2019 7:00 AM 0.26 3.7 0.59 3.7 0.59 Moderate snow (~2"/hr) continues.
10/27/2019 7:00 AM 0.37 3.9 0.38 6.8 0.51
10/28/2019 7:00 AM 0.01 0.1 0.01 4.9 0.52
10/29/2019 7:00 AM 0.19 1.9 0.18 6.9 0.70
10/30/2019 7:00 AM 0.00 0.0 0.00 6.0 0.70
10/31/2019 7:00 AM 0.00 0.0 0.00 5.5 0.69
11/1/2019 7:00 AM 0.07 1.2 0.06 6.5 0.80
11/2/2019 7:00 AM 0.00 0.0 0.00 5.3 0.80
11/3/2019 7:00 AM 0.00 0.0 0.00 3.9 0.74
11/4/2019 7:00 AM 0.01 0.1 0.02 2.5 0.53
11/5/2019 7:00 AM 0.04 T T 2.0 0.41
11/6/2019 7:00 AM 0.00 0.0 0.00 T T
11/7/2019 7:00 AM T T T T T
11/8/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/9/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/10/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00
11/11/2019 7:00 AM 0.23 0.4 0.08 0.4 0.08 Winds gusting to 20 mph swept the board and yard. Canister held at least 1.5" of snow, plus ice from early rain.
11/12/2019 7:00 AM 0.00 T T 0.5 0.08
11/13/2019 7:00 AM 0.02 0.0 0.00 0.2 0.03 SWE adjusted for ~50% cover.
11/14/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/15/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/16/2019 7:00 AM T 0.0 0.00 0.0 0.00
11/17/2019 7:00 AM T T T 0.0 0.00
11/18/2019 7:00 AM 0.02 0.0 0.00 0.0 0.00
11/19/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/20/2019 7:00 AM 0.34 0.7 0.19 0.7 0.19
11/21/2019 7:00 AM T T T 0.6 0.19
11/22/2019 7:00 AM 0.00 0.0 0.00 0.5 0.16
11/23/2019 7:00 AM 0.00 0.0 0.00 0.3 0.10 SWE corrected for ~60% cover.
11/24/2019 7:00 AM 0.00 0.0 0.00 0.2 0.06 SWE corrected for ~40% cover.
11/25/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/26/2019 7:00 AM 0.10 1.5 0.10 1.5 0.10
11/27/2019 7:00 AM T T T 1.2 0.10
11/28/2019 7:00 AM 0.06 1.8 0.06 3.6 0.12
11/29/2019 6:40 AM 0.07 1.8 0.06 4.8 0.19
11/30/2019 7:00 AM 0.39 5.7 0.37 9.2 0.57
12/1/2019 7:00 AM 0.01 0.1 0.01 7.6 0.58
12/2/2019 7:00 AM 0.01 0.1 0.01 6.3 0.59
12/3/2019 7:00 AM 0.00 0.0 0.00 5.4 0.57
12/4/2019 7:00 AM 0.00 0.0 0.00 4.6 0.57
12/5/2019 7:00 AM 0.00 0.0 0.00 5.2 0.57
12/6/2019 7:00 AM 0.00 0.0 0.00 4.7 0.55
12/7/2019 7:00 AM 0.00 0.0 0.00 4.7 0.55
12/8/2019 7:00 AM T 0.0 0.00 4.2 0.52
12/9/2019 7:00 AM 0.07 0.3 0.04 4.5 0.65 Discrepancy between board and canister reflects ice early in event that could not be accurately scraped from the board.
12/10/2019 7:00 AM 0.00 0.0 0.00 4.3 0.65
12/11/2019 7:00 AM 0.00 0.0 0.00 4.2 0.65
12/12/2019 7:00 AM 0.00 0.0 0.00 4.2 0.65
12/13/2019 7:00 AM 0.00 0.0 0.00 3.9 0.62
12/14/2019 7:00 AM T T T 3.9 0.67
12/15/2019 7:00 AM 0.02 0.3 0.02 4.3 0.69
12/16/2019 7:00 AM 0.00 0.0 0.00 4.1 0.69
12/17/2019 7:00 AM 0.00 0.0 0.00 4.0 0.69
12/18/2019 7:00 AM 0.00 0.0 0.00 4.0 0.69
12/19/2019 7:00 AM 0.00 0.0 0.00 4.0 0.69
12/20/2019 7:00 AM 0.00 0.0 0.00 3.9 0.70
12/21/2019 7:00 AM 0.00 0.0 0.00 3.5 0.73
12/22/2019 7:00 AM 0.00 0.0 0.00 3.3 0.65
12/23/2019 7:00 AM 0.00 0.0 0.00 3.1 0.60
12/24/2019 7:00 AM 0.00 0.0 0.00 2.9 0.66
12/25/2019 7:00 AM 0.03 T M 2.9 0.69 Snow melted on contact, then refroze overnight. Ice on board could not be sampled.
12/26/2019 7:00 AM 0.04 1.2 0.05 4.2 0.73
12/27/2019 7:00 AM 0.00 0.0 0.00 3.8 0.73
12/28/2019 7:00 AM T T T 3.8 0.73
12/29/2019 7:00 AM 0.02 0.3 0.02 4.0 0.53 Apparent drop in SWE reflects switch in sampling site by ~1 m.
12/30/2019 7:00 AM 0.00 0.0 0.00 4.0 0.53
12/31/2019 7:00 AM 0.00 0.0 0.00 3.9 0.53
1/1/2020 7:00 AM 0.08 0.5 0.08 4.3 0.61
1/2/2020 7:00 AM 0.08 0.8 0.09 5.1 0.84
1/3/2020 7:00 AM 0.00 0.0 0.00 4.7 0.83
1/4/2020 7:00 AM 0.00 0.0 0.00 4.6 0.84
1/5/2020 7:00 AM 0.02 0.2 0.03 4.4 0.87
1/6/2020 7:00 AM 0.00 0.0 0.00 4.2 0.87
1/7/2020 7:00 AM 0.00 0.0 0.00 4.2 0.87
1/8/2020 7:00 AM 0.00 0.0 0.00 3.4 0.78 SWE corrected to ~90% cover. Although open space snow cover is entire (except for deer and bear tracks melting out), tree wells are expanding beyond the canopies.
1/9/2020 7:00 AM 0.04 0.6 0.04 4.6 0.86
1/10/2020 7:00 AM 0.05 0.4 0.05 4.9 0.91
1/11/2020 7:00 AM T 0.1 T 4.8 0.91
1/12/2020 7:00 AM 0.00 0.0 0.00 4.6 0.91
1/13/2020 7:00 AM 0.00 0.0 0.00 4.5 0.91
1/14/2020 7:00 AM T 0.1 T 4.5 0.91 Board blown clear by 35-mph gusts. New snowfall estimated from early measurement on deck and canister water/ice.
1/15/2020 7:00 AM 0.10 1.2 0.10 5.8 1.01
1/16/2020 7:00 AM 0.00 0.0 0.00 5.5 1.01
1/17/2020 7:00 AM 0.00 0.0 0.00 5.3 1.01
1/18/2020 7:00 AM 0.01 0.2 0.01 5.4 1.02
1/19/2020 7:00 AM 0.00 0.0 0.00 5.4 1.01
1/20/2020 7:00 AM 0.00 0.0 0.00 5.3 1.01
1/21/2020 7:00 AM 0.00 0.0 0.00 5.3 0.97
1/22/2020 7:00 AM 0.06 0.8 0.06 5.9 1.03
1/23/2020 7:00 AM T T T 5.5 1.03
1/24/2020 7:00 AM 0.01 0.0 0.00 4.9 1.04 Light rain near sunset resulted in a thin glaze on the board.
1/25/2020 7:00 AM T 0.0 0.00 4.8 1.04
1/26/2020 7:00 AM T T T 4.4 1.04
1/27/2020 7:00 AM 0.19 1.7 0.17 7.1 1.15
1/28/2020 7:00 AM 0.00 0.0 0.00 6.2 1.15
1/29/2020 7:00 AM 0.04 0.2 0.01 7.0 1.19
1/30/2020 7:00 AM 0.07 0.5 0.07 7.2 1.26
1/31/2020 7:00 AM 0.00 0.0 0.00 7.1 1.26
2/1/2020 7:00 AM 0.00 0.0 0.00 5.9 1.26
2/2/2020 7:00 AM 0.15 3.5 0.15 7.8 M
2/3/2020 7:00 AM 0.48 4.5 0.45 10.7 1.46
2/4/2020 7:00 AM T T T 9.1 1.46
2/5/2020 7:00 AM 0.05 0.6 0.05 8.9 1.51
2/6/2020 7:00 AM 0.36 4.4 0.36 12.8 1.87 Moderate snow continues.
2/7/2020 7:00 AM 0.25 3.4 0.26 15.1 M Mid-30s air temperatures in the afternoon reduced snow total from what fell yesterday morning by compaction and minor melting.
2/8/2020 7:00 AM 0.05 0.6 0.05 15.4 M O.3" were measured at 0830 yesterday, but melted. Today's measurement was 0.2". New snow SWE is estimated from canister.
2/9/2020 7:00 AM 0.34 3.9 0.34 16.2 2.67
2/10/2020 7:00 AM 0.12 2.0 0.11 17.1 2.78
2/11/2020 7:00 AM 0.00 0.0 0.00 15.5 2.78
2/12/2020 7:00 AM 0.02 0.3 0.03 15.2 2.80
2/13/2020 7:00 AM 0.06 0.6 0.06 15.1 2.86
2/14/2020 7:00 AM 0.00 0.0 0.00 14.4 2.86
2/15/2020 7:00 AM 0.02 0.3 0.03 14.5 2.89
2/16/2020 7:00 AM 0.05 0.5 0.04 14.1 2.96
2/17/2020 7:00 AM 0.02 0.2 0.01 13.9 2.98
2/18/2020 7:00 AM 0.04 0.4 0.04 14.0 3.02
2/19/2020 7:00 AM 0.03 0.7 0.03 14.5 3.05
2/20/2020 7:00 AM T T T 13.9 3.05
2/21/2020 7:00 AM 0.00 0.0 0.00 13.7 3.05
2/22/2020 7:00 AM 0.00 0.0 0.00 13.4 3.05
2/23/2020 7:00 AM 0.00 0.0 0.00 12.1 3.05
2/24/2020 7:00 AM 0.06 0.7 0.07 12.9 3.11
2/25/2020 7:00 AM 0.25 3.6 0.26 16.6 3.36
2/26/2020 7:00 AM T T T 14.3 3.36
2/27/2020 7:00 AM 0.00 0.0 0.00 14.0 3.36
2/28/2020 7:00 AM 0.00 0.0 0.00 13.2 3.36
2/29/2020 7:00 AM 0.00 0.0 0.00 12.4 3.36
3/1/2020 7:00 AM 0.01 0.1 0.01 12.5 3.37 Thin icy crust on board.
3/2/2020 7:00 AM 0.00 0.0 0.00 12.3 3.37
3/3/2020 7:00 AM T T T 10.9 3.37
3/4/2020 7:00 AM 0.00 0.0 0.00 9.4 3.37
3/5/2020 7:00 AM 0.00 0.0 0.00 8.3 3.06 About 0.25" of water ice at the base of the snowpack that could not be accurately sampled, thus measured SWE is a minimum. Melt resulted from air temps in the mid-40's (F) and winds gusting to 38 mph.
3/6/2020 7:00 AM 0.00 0.0 0.00 7.4 M
3/7/2020 7:00 AM 0.00 0.0 0.00 6.2 M
3/8/2020 7:00 AM 0.54 2.1 0.30 8.1 M Steady wet snow falling.
3/9/2020 7:00 AM 0.03 0.6 M 6.8 1.93 New snow was measured at 0900 hr yesterday. Melt reduced it to a thin film of ice on the board by 0700 today.
3/10/2020 7:00 AM 0.06 0.9 0.06 7.5 M
3/11/2020 7:00 AM 0.00 0.0 0.00 5.0 1.40 Depth and SWE corrected for ~80% cover.
3/12/2020 7:00 AM T T T 3.5 M Snow depth and SWE corrected for ~70% cover.
3/13/2020 7:00 AM T T T 2.6 0.59 Snow depth and SWE corrected for ~60% snow cover.
3/14/2020 7:00 AM 0.01 0.1 0.01 2.7 0.60
3/15/2020 7:00 AM 0.20 2.5 0.21 5.2 0.80 Half of my yard was bare yesterday and half had about 5" of old, crystalline "snow". Snow depth and SWE are thus averages of disparate amounts!
3/16/2020 7:00 AM 0.03 0.3 0.03 5.5 0.83
3/17/2020 7:00 AM 0.00 0.0 0.00 4.8 0.83
3/18/2020 7:00 AM 0.03 0.2 0.04 5.0 0.87
3/19/2020 7:00 AM 0.02 0.1 0.02 4.0 0.88
3/20/2020 7:00 AM T T T 3.5 M
3/21/2020 7:00 AM 0.00 0.0 0.00 2.5 0.43 Snow depth and SWE corrected to ~50% cover.
3/22/2020 7:00 AM 0.00 0.0 0.00 1.8 0.29 Snow depth and SWE corrected for ~40% cover.
3/23/2020 7:00 AM T T T T T A few flakes fell at sunrise. My yard tilts slightly SW, and retains only about 0.3" of snow, corrected for 10$ remaining cover. The adjacent golf course retains about 90% cover, with 6" snow in the fairways. It should last another ten days.
3/24/2020 7:00 AM 0.25 2.5 0.22 2.5 0.22
3/25/2020 7:00 AM 0.14 1.3 0.09 3.6 M Some early morning snow was lost to midday melt.
3/26/2020 7:00 AM 0.08 0.5 0.06 3.1 0.34
3/27/2020 7:00 AM T T T 1.3 0.24 Snow depth and SWE corrected for ~80% cover.
3/28/2020 7:00 AM 0.00 0.0 0.00 T T
3/29/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00 A few small drifts persist.
3/30/2020 7:00 AM T 0.0 0.00 0.0 0.00
3/31/2020 7:00 AM 0.28 3.2 0.26 3.2 0.26 Heavy, wet snow falling.
4/1/2020 7:00 AM 0.57 6.8 0.51 7.9 0.59
4/2/2020 7:00 AM 0.02 0.1 0.01 5.2 0.45
4/3/2020 7:00 AM 0.00 0.0 0.00 3.4 0.42
4/4/2020 7:00 AM 0.00 0.0 0.00 1.3 0.30 Snow depth and SWE corrected for ~60% cover.
4/5/2020 7:00 AM 0.00 0.0 0.00 0.4 0.08 Snow depth and SWE corrected for ~30% cover.
4/6/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/7/2020 7:00 AM T 0.0 0.00 0.0 0.00
4/8/2020 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
4/10/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/11/2020 7:00 AM 0.02 0.1 0.01 0.1 0.01
4/12/2020 7:00 AM 0.22 2.4 0.08 2.5 0.08
4/13/2020 7:00 AM T 0.0 0.00 0.0 0.00
4/14/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/15/2020 7:00 AM 0.10 0.9 0.10 0.9 0.08
4/16/2020 7:00 AM 0.35 4.1 0.32 4.9 0.34
4/17/2020 7:00 AM T 0.0 0.00 0.0 0.00
4/18/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/19/2020 7:00 AM 0.02 0.0 0.00 0.0 0.00
4/20/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/21/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
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 0.16 0.0 0.00 0.0 0.00
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 0.00 0.0 0.00
4/27/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/28/2020 7:00 AM 0.07 0.0 0.00 0.0 0.00
4/29/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/30/2020 7:00 AM 0.02 0.0 0.00 0.0 0.00
5/1/2020 7:00 AM 0.26 0.0 0.00 0.0 0.00
5/2/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/3/2020 7:00 AM T 0.0 0.00 0.0 0.00
5/4/2020 7:00 AM 0.26 0.0 0.00 0.0 0.00
5/5/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/6/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/7/2020 7:00 AM 0.05 0.0 0.00 0.0 0.00
5/8/2020 7:00 AM 0.02 T T 0.0 0.00
5/9/2020 7:00 AM 0.05 T T 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 0.03 T T 0.0 0.00 About three hours of light snow (0752-0930, 1000-1130) resulted in accumulation (~0.2") above ground level on leaves and shaded deck boards, but nothing on the board. All melted by noon.
5/13/2020 7:00 AM 0.06 0.0 0.00 0.0 0.00
5/14/2020 7:00 AM 0.03 0.0 0.00 0.0 0.00
5/15/2020 7:00 AM 0.08 0.0 0.00 0.0 0.00
5/16/2020 7:00 AM 0.11 0.0 0.00 0.0 0.00
5/17/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/18/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/19/2020 7:00 AM 0.01 0.0 0.00 0.0 0.00
5/20/2020 7:00 AM T 0.0 0.00 0.0 0.00
5/21/2020 7:00 AM T 0.0 0.00 0.0 0.00
5/22/2020 7:00 AM 0.08 0.0 0.00 0.0 0.00
5/23/2020 7:00 AM 0.08 T T 0.0 0.00
5/24/2020 7:00 AM 0.41 T T 0.0 0.00 Snow off and on all morning, with no accumulation. Event total (0.49") is largest in April and May.
5/25/2020 7:00 AM 0.06 0.0 0.00 0.0 0.00
5/26/2020 7:00 AM 0.05 0.0 0.00 0.0 0.00
5/27/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/28/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/29/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/30/2020 7:00 AM 0.01 0.0 0.00 0.0 0.00
5/31/2020 7:00 AM T 0.0 0.00 0.0 0.00
6/1/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/2/2020 7:00 AM 0.05 0.0 0.00 0.0 0.00
6/3/2020 7:00 AM T 0.0 0.00 0.0 0.00
6/4/2020 7:00 AM 0.01 0.0 0.00 0.0 0.00
6/5/2020 7:00 AM T 0.0 0.00 0.0 0.00
6/6/2020 7:00 AM 0.04 0.0 0.00 0.0 0.00
6/7/2020 7:00 AM 0.52 0.0 0.00 0.0 0.00
6/8/2020 7:00 AM T 0.0 0.00 0.0 0.00
6/9/2020 7:00 AM 0.25 0.0 0.00 0.0 0.00 Difficult removing the funnel - frost!
6/10/2020 7:00 AM T 0.0 0.00 0.0 0.00
6/11/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/12/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/13/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/14/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/15/2020 7:00 AM 0.18 0.0 0.00 0.0 0.00
6/16/2020 7:00 AM 0.06 0.0 0.00 0.0 0.00
6/17/2020 7:00 AM 0.36 0.0 0.00 0.0 0.00
6/18/2020 7:00 AM 0.57 0.0 0.00 0.0 0.00
6/19/2020 7:00 AM 0.01 0.0 0.00 0.0 0.00
6/20/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/21/2020 7:00 AM 0.04 0.0 0.00 0.0 0.00
6/22/2020 7:00 AM T 0.0 0.00 0.0 0.00
6/23/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/24/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/25/2020 7:00 AM 0.31 0.0 0.00 0.0 0.00
6/26/2020 7:00 AM 0.02 0.0 0.00 0.0 0.00
6/27/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/28/2020 7:00 AM 0.10 0.0 0.00 0.0 0.00
6/29/2020 7:00 AM 0.58 0.0 0.00 0.0 0.00
6/30/2020 7:00 AM 0.08 0.0 0.00 0.0 0.00
7/1/2020 7:00 AM 0.02 0.0 0.00 0.0 0.00
7/2/2020 7:00 AM 0.06 0.0 0.00 0.0 0.00 Three Cb cells passed by or over between 1600 and 1945 hr; no hail observed.
7/3/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/4/2020 7:00 AM 0.04 0.0 0.00 0.0 0.00
7/5/2020 7:00 AM 0.03 0.0 0.00 0.0 0.00
7/6/2020 7:00 AM 0.01 0.0 0.00 0.0 0.00
7/7/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/8/2020 7:00 AM 0.03 0.0 0.00 0.0 0.00
7/9/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/10/2020 7:00 AM 0.07 0.0 0.00 0.0 0.00
7/11/2020 7:00 AM T 0.0 0.00 0.0 0.00
7/12/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/13/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/14/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/15/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/16/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/17/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/18/2020 7:00 AM T 0.0 0.00 0.0 0.00
7/19/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/20/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/21/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/22/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/23/2020 7:00 AM 0.11 0.0 0.00 0.0 0.00
7/24/2020 7:00 AM 0.17 0.0 0.00 0.0 0.00
7/25/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/26/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/27/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/28/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/29/2020 7:00 AM T 0.0 0.00 0.0 0.00
7/30/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/31/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/1/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/2/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/3/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/4/2020 7:00 AM 0.77 0.0 0.00 0.0 0.00
8/5/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/6/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/7/2020 7:00 AM 0.03 0.0 0.00 0.0 0.00
8/8/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/9/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/10/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/11/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/12/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/13/2020 7:00 AM 0.06 0.0 0.00 0.0 0.00
8/14/2020 7:00 AM T 0.0 0.00 0.0 0.00
8/15/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/16/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/17/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/18/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/19/2020 7:00 AM T 0.0 0.00 0.0 0.00
8/20/2020 7:00 AM 0.02 0.0 0.00 0.0 0.00
8/21/2020 7:00 AM T 0.0 0.00 0.0 0.00
8/22/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/23/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/24/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/25/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/26/2020 7:00 AM T 0.0 0.00 0.0 0.00
8/27/2020 7:00 AM 0.29 0.0 0.00 0.0 0.00
8/28/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/29/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/30/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/31/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/1/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/2/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/3/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/4/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/5/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/6/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/7/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/8/2020 7:00 AM 0.46 0.3 0.06 0.1 0.02 Snow on ground is estimated from discontinuous cover on and in the grass.
9/9/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
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
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 0.00 0.0 0.00
9/15/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/16/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/17/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/18/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/19/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/20/2020 7:00 AM 0.12 0.0 0.00 0.0 0.00
9/21/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/22/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/23/2020 7:00 AM 0.01 0.0 0.00 0.0 0.00
9/24/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/25/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/26/2020 7:00 AM T 0.0 0.00 0.0 0.00
9/27/2020 7:00 AM 0.07 0.0 0.00 0.0 0.00
9/28/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/29/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/30/2020 7:00 AM 0.00 0.0 0.00 0.0 0.00



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
7/7/2020 3:30 PM 5/8" 3/8" 1/4" Pea Size Mixed 5 no damage False Same time as smaller hail
8/3/2020 5:45 PM Largest hailstone was shaped like a fang! 3/8" 1/4" Pea Size Rice Hard 10 2min no damage Intermittent False Before rain After smaller hail
8/3/2020 6:32 PM Second squall embedded in large cell. Total rain in one hour nearly equaled all of July, and maximum rate from my tipping bucket (0.04"/tip) was 3.86"/hr - torrential! Highest rate in almost a decade of observation! 3/8" 1/4" Pea Size Rice Hard|White Ice 6 1min no damage Continuous True After rain Same time as smaller hail