Station Overview Station Location
Station Number MD-MG-18 Latitude 39.092094
Station Name Colesville 1.7 W Longitude -77.038549
County Montgomery Elevation (ft) 361



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 3.51 4.03 10 4.03 10 0.00 0 0 9 1 0.0 0 0
Nov 19 3.54 2.58 6 2.58 6 0.00 0 0 5 1 0.0 0 0
Dec 19 3.25 2.62 11 2.62 11 0.00 0 0 10 0 1.3 2 1
Jan 20 3.00 2.22 7 2.22 7 0.00 0 0 4 1 1.5 1 1
Feb 20 2.85 3.36 29 3.36 29 0.00 0 0 17 1 0.0 0 0
March 20 3.82 2.52 31 2.52 31 0.00 0 0 17 3 0.0 0 0
April 20 3.39 5.06 25 5.06 25 0.00 0 0 18 3 0.0 0 0
May 20 4.25 4.10 31 4.10 31 0.00 0 0 12 1 0.0 0 0
June 20 3.96 4.85 20 4.85 20 0.00 0 0 9 2 0.0 0 0
July 20 4.02 3.82 31 3.82 31 0.00 0 0 11 1 0.0 0 0
Aug 20 3.21 9.86 31 9.86 31 0.00 0 0 21 0 0.0 0 0
Sept 20 4.05 7.11 30 7.06 28 0.05 2 1 10 1 0.0 0 0
Water Year Totals: 42.85" 52.13" 262 days 52.08" 260 0.05" 2 days 1 143 days 15 days 2.8" 3 days 2 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
10/2/2019
10/3/2019
10/4/2019
10/5/2019
10/6/2019
10/7/2019 T
10/8/2019 0.06
10/9/2019 0.07
10/10/2019
10/11/2019
10/12/2019
10/13/2019
10/14/2019
10/15/2019
10/16/2019
10/17/2019 1.32
10/18/2019
10/19/2019
10/20/2019 0.15
10/21/2019
10/22/2019 0.02
10/23/2019 0.50
10/24/2019
10/25/2019
10/26/2019
10/27/2019 0.64
10/28/2019 0.61
10/29/2019
10/30/2019
10/31/2019 0.66
11/1/2019 1.54
11/2/2019
11/3/2019
11/4/2019
11/5/2019
11/6/2019
11/7/2019
11/8/2019 0.14
11/9/2019 T
11/10/2019
11/11/2019
11/12/2019
11/13/2019
11/14/2019
11/15/2019
11/16/2019
11/17/2019
11/18/2019
11/19/2019
11/20/2019
11/21/2019
11/22/2019
11/23/2019
11/24/2019 0.88
11/25/2019
11/26/2019
11/27/2019 0.01
11/28/2019 0.01
11/29/2019
11/30/2019
12/1/2019
12/2/2019
12/3/2019
12/4/2019 0.02
12/5/2019
12/6/2019
12/7/2019
12/8/2019
12/9/2019 0.01
12/10/2019 0.71
12/11/2019 0.30
12/12/2019
12/13/2019 0.00
12/14/2019 0.30
12/15/2019
12/16/2019 0.16
12/17/2019 0.37
12/18/2019 0.02
12/19/2019
12/20/2019
12/21/2019
12/22/2019
12/23/2019
12/24/2019
12/25/2019
12/26/2019
12/27/2019
12/28/2019
12/29/2019
12/30/2019 0.58
12/31/2019 0.15
Day of YearDaily PrcpMultiday Prcp
1/1/2020
1/2/2020
1/3/2020 0.20
1/4/2020 0.20
1/5/2020
1/6/2020 0.00
1/7/2020
1/8/2020 0.31
1/9/2020 T
1/10/2020 0.00
1/11/2020
1/12/2020
1/13/2020
1/14/2020
1/15/2020
1/16/2020
1/17/2020
1/18/2020
1/19/2020
1/20/2020
1/21/2020
1/22/2020
1/23/2020
1/24/2020
1/25/2020 1.51
1/26/2020
1/27/2020
1/28/2020
1/29/2020
1/30/2020
1/31/2020
2/1/2020 0.03
2/2/2020 0.14
2/3/2020 0.02
2/4/2020 0.02
2/5/2020 0.04
2/6/2020 0.14
2/7/2020 0.77
2/8/2020 0.32
2/9/2020 0.00
2/10/2020 0.06
2/11/2020 0.72
2/12/2020 0.07
2/13/2020 0.19
2/14/2020 0.08
2/15/2020 0.00
2/16/2020 0.00
2/17/2020 0.00
2/18/2020 0.00
2/19/2020 0.01
2/20/2020 0.00
2/21/2020 0.00
2/22/2020 0.00
2/23/2020 0.00
2/24/2020 0.00
2/25/2020 0.08
2/26/2020 0.25
2/27/2020 0.42
2/28/2020 0.00
2/29/2020 T
3/1/2020 0.00
3/2/2020 0.00
3/3/2020 0.10
3/4/2020 0.03
3/5/2020 0.00
3/6/2020 0.00
3/7/2020 0.01
3/8/2020 0.00
3/9/2020 0.00
3/10/2020 T
3/11/2020 0.05
3/12/2020 T
3/13/2020 0.22
3/14/2020 0.00
3/15/2020 0.24
3/16/2020 0.01
3/17/2020 T
3/18/2020 0.00
3/19/2020 0.75
3/20/2020 0.02
3/21/2020 0.02
3/22/2020 0.00
3/23/2020 0.09
3/24/2020 0.19
3/25/2020 0.04
3/26/2020 0.27
3/27/2020 0.00
3/28/2020 0.31
3/29/2020 0.16
3/30/2020 0.01
3/31/2020 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2020 0.26
4/2/2020 T
4/3/2020 0.00
4/4/2020 T
4/5/2020 T
4/6/2020 0.02
4/7/2020 0.02
4/8/2020 0.30
4/9/2020 0.14
4/10/2020 0.05
4/11/2020
4/12/2020
4/13/2020 1.53
4/14/2020 0.69
4/15/2020 0.32
4/16/2020 0.00
4/17/2020 0.00
4/18/2020 0.04
4/19/2020 0.02
4/20/2020
4/21/2020 0.00
4/22/2020 0.02
4/23/2020
4/24/2020 0.92
4/25/2020 0.06
4/26/2020 0.36
4/27/2020 0.24
4/28/2020
4/29/2020 0.03
4/30/2020 0.04
5/1/2020 1.56
5/2/2020 0.09
5/3/2020 0.00
5/4/2020 0.46
5/5/2020 0.00
5/6/2020 0.21
5/7/2020 0.32
5/8/2020 0.00
5/9/2020 0.36
5/10/2020 0.00
5/11/2020 0.01
5/12/2020 0.00
5/13/2020 0.00
5/14/2020 0.00
5/15/2020 0.00
5/16/2020 0.00
5/17/2020 0.00
5/18/2020 T
5/19/2020 0.00
5/20/2020 0.00
5/21/2020 0.00
5/22/2020 0.14
5/23/2020 0.70
5/24/2020 0.00
5/25/2020 0.00
5/26/2020 0.00
5/27/2020 0.00
5/28/2020 0.07
5/29/2020 0.10
5/30/2020 0.08
5/31/2020 0.00
6/1/2020 0.00
6/2/2020 0.00
6/3/2020 0.00
6/4/2020 T
6/5/2020 1.12
6/6/2020 1.00
6/7/2020 0.00
6/8/2020
6/9/2020
6/10/2020
6/11/2020 1.02
6/12/2020 0.00
6/13/2020
6/14/2020
6/15/2020
6/16/2020
6/17/2020
6/18/2020 0.49
6/19/2020 0.03
6/20/2020 0.19
6/21/2020 0.38
6/22/2020
6/23/2020 0.04
6/24/2020 T
6/25/2020
6/26/2020 0.58
6/27/2020 0.00
6/28/2020 0.00
6/29/2020 0.00
6/30/2020 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.09
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 0.59
7/8/2020 0.24
7/9/2020 0.00
7/10/2020 0.02
7/11/2020 0.01
7/12/2020 0.00
7/13/2020 0.14
7/14/2020 0.00
7/15/2020 0.00
7/16/2020 0.00
7/17/2020 0.00
7/18/2020 0.00
7/19/2020 0.00
7/20/2020 0.00
7/21/2020 T
7/22/2020 0.38
7/23/2020 1.89
7/24/2020 0.24
7/25/2020 0.03
7/26/2020 0.00
7/27/2020 0.00
7/28/2020 0.00
7/29/2020 0.00
7/30/2020 0.00
7/31/2020 0.19
8/1/2020 0.52
8/2/2020 0.01
8/3/2020 0.00
8/4/2020 1.70
8/5/2020 1.33
8/6/2020 1.53
8/7/2020 0.02
8/8/2020 0.61
8/9/2020 0.00
8/10/2020 0.00
8/11/2020 0.00
8/12/2020 0.01
8/13/2020 1.64
8/14/2020 0.36
8/15/2020 0.02
8/16/2020 1.10
8/17/2020 0.03
8/18/2020 0.07
8/19/2020 0.05
8/20/2020 0.15
8/21/2020 0.00
8/22/2020 0.04
8/23/2020 0.01
8/24/2020 0.00
8/25/2020 0.00
8/26/2020 0.01
8/27/2020 0.00
8/28/2020 0.00
8/29/2020 0.54
8/30/2020 0.11
8/31/2020 0.00
9/1/2020 0.41
9/2/2020 0.06
9/3/2020 0.77
9/4/2020 1.45
9/5/2020 0.00
9/6/2020 0.00
9/7/2020 0.00
9/8/2020 0.00
9/9/2020 0.00
9/10/2020 0.23
9/11/2020 3.17
9/12/2020 **
9/13/2020 0.05
9/14/2020 0.00
9/15/2020 0.00
9/16/2020 0.00
9/17/2020 0.00
9/18/2020 0.12
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 0.50
9/27/2020 0.08
9/28/2020 T
9/29/2020 0.00
9/30/2020 0.27



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/7/2019 7:00 AM T 0.0 M M M A few drizzle drops around 6:30 PM (10/6)
10/8/2019 7:00 AM 0.06 0.0 M M M Rain began around 10PM yesterday with additional showers overnight.
10/9/2019 7:00 AM 0.07 0.0 M M M Rain around 3:30 AM.
10/17/2019 7:00 AM 1.32 0.0 M M M
10/20/2019 7:40 AM 0.15 0.0 M M M Rain began in the early AM hours. Light rain at observation time.
10/22/2019 8:00 AM 0.02 0.0 M M M Drizzle at obs time.
10/23/2019 7:00 AM 0.50 0.0 M M M Rain from 7AM to around 6PM yesterday (10/22)
10/27/2019 7:40 AM 0.64 0.0 M M M Heavy rain at observation time. Trace precipitation on calendar day 10/26). Rain began sometime in the early AM hours.
10/28/2019 7:00 AM 0.61 0.0 M M M Rain ended in the early afternoon. (10/27)
10/31/2019 7:00 AM 0.66 0.0 M M M Rain began around 4PM, .44 by midnight(10/30), .22 between Midnight and 7AM.
11/1/2019 7:00 AM 1.54 0.0 M M M Heavy rain began just after 9:00 PM, Heaviest at around 9:30. 1.52 by midnight 10/31. Rain ended shortly afterward with an additional .02 before obs time.
11/8/2019 7:00 AM 0.14 0.0 M M M Light rain yesterday around 6PM. (11/7)
11/9/2019 7:00 AM T T M M M Light Snow Flurry around 10 AM (11/8)
11/24/2019 7:00 AM 0.88 0.0 M 0.0 M Rain began around 4PM, continued through the night, .46 on calendar day 11/23, .42 after midnight.
11/27/2019 7:30 AM 0.01 0.0 M M M Rain began sometime in the AM hours (11/27). Light rain at observation time.
11/28/2019 7:00 AM 0.01 0.0 M M M Light rain finishes up yesterday morning. (11/27)
12/4/2019 7:00 AM 0.02 0.0 M M M Rain overnight after midnight (12/4) (cold enough to be snow but I saw no evidence of any snow, everything is just wet)
12/9/2019 7:00 AM 0.01 0.0 M M M Rain in the early AM prior to observation time.
12/10/2019 7:00 AM 0.71 0.0 M 0.0 M Light rain throughout the day yesterday (12/9) ending by around 9PM.
12/11/2019 7:00 AM 0.30 0.3 M T M Periods of light rain yesterday (12/10) from around 10AM - midnight, Mixing with snow at midnight (.27 on calendar day 12/11) .03 after midnight with .3 inch of snow dusting leaves, grasses and the snow board.
12/13/2019 7:00 AM 0.00 0.0 M 0.0 M
12/14/2019 7:00 AM 0.30 0.0 M 0.0 M Light rain began mid morning (12/13) and continued through the day and evening. .26 by midnight. .04 overnight. Drizzle at obs time
12/16/2019 7:00 AM 0.16 1.0 M 0.5 M Snow changing to rain. Drizzle with some rain drops at obs time. Snow measurement from snow board. A slushy half inch covers most bare ground surfaces including roads at 7AM.
12/17/2019 7:00 AM 0.37 0.0 M 0.0 M Rain and drizzle all day yesterday (12/16) (.35) Drizzle overnight (.02)
12/18/2019 7:00 AM 0.02 0.0 M 0.0 M Drizzle and maybe some light rain from yesterday morning (12/17)
12/30/2019 7:00 AM 0.58 0.0 M 0.0 M Rain began around 10AM yesterday (12/29), moderate in the mid afternoon, where most of the rain occurred, then light occasional rain through the evening (.53 on calendar day 12/19) and early morning hours (.05 overnight)..
12/31/2019 7:45 AM 0.15 0.0 M 0.0 M Rain before 1PM then clearing. .14 on calendar day (12/30). .01 overnight in drizzle
1/3/2020 8:00 AM 0.20 0.0 M 0.0 M Early morning rain.
1/4/2020 7:00 AM 0.20 0.0 M 0.0 M Light rain off and on in the last 24-hrs. .10 before midnight (1/3). .10 afterwards.
1/6/2020 7:00 AM 0.00 0.0 M M M
1/8/2020 7:00 AM 0.31 1.5 M 1.0 M Rain began in the afternoon, changed to snow. Moderate wet snow at times, ending in the evening. Snow amount from snow board.
1/9/2020 7:00 AM T T M T M Snow flurry around 8AM yesterday (1/8). Some snow grains mixed in.
1/10/2020 7:00 AM 0.00 0.0 M T M
1/25/2020 7:30 AM 1.51 0.0 M 0.0 M Rain began around midnight (1/24-1/25).
2/1/2020 7:00 AM 0.03 0.0 M M M
2/2/2020 7:00 AM 0.14 0.0 M M M Late afternoon rain. (2/1)
2/3/2020 7:00 AM 0.02 0.0 M M M Light rain yesterday around late morning.
2/4/2020 7:00 AM 0.02 0.0 M 0.0 M Light rain at observation time.
2/5/2020 7:00 AM 0.04 0.0 M M M Rain yesterday morning (2/4)
2/6/2020 7:00 AM 0.14 0.0 M M M Light rain yesterday evening. .07 on calendar day 2/5, .07 overnight.
2/7/2020 7:00 AM 0.77 0.0 M 0.0 M Rain all day yesterday (2/6). .51 by 7PM. .14 additional before midnight and .12 after midnight. Warm front passes at around 3AM... Temp. 58 at obs time.
2/8/2020 7:00 AM 0.32 0.0 M 0.0 M Dark, rainy morning yesterday (2/7). Heaviest rain around 8AM, clearing by noon.
2/9/2020 7:00 AM 0.00 0.0 M M M
2/10/2020 7:00 AM 0.06 0.0 M 0.0 M Rain in the AM hours. Light rain at observation time.
2/11/2020 7:00 AM 0.72 0.0 M M M
2/12/2020 7:00 AM 0.07 0.0 M 0.0 M Rain yesterday morning.
2/13/2020 7:00 AM 0.19 0.0 M 0.0 M Light rain, .09 on calendar day 2/12, .10 so far today.
2/14/2020 7:00 AM 0.08 0.0 M 0.0 M Rain from yesterday (2/13) before noon.
2/15/2020 7:00 AM 0.00 0.0 M M M
2/16/2020 7:00 AM 0.00 0.0 M M M
2/17/2020 7:00 AM 0.00 0.0 M M M
2/18/2020 7:00 AM 0.00 0.0 M M M
2/19/2020 7:00 AM 0.01 0.0 M 0.0 M Some rain overnight after 10 PM.
2/20/2020 7:00 AM 0.00 0.0 M M M
2/21/2020 7:00 AM 0.00 0.0 M M M
2/22/2020 7:00 AM 0.00 0.0 M M M
2/23/2020 7:00 AM 0.00 0.0 M M M
2/24/2020 7:00 AM 0.00 0.0 M M M
2/25/2020 7:00 AM 0.08 0.0 M 0.0 M Rain began after midnight. Light rain at observation time.
2/26/2020 7:00 AM 0.25 0.0 M 0.0 M Rain yesterday, moderate around 11AM, then tapering off to drizzle before ending in the afternoon (2/25)
2/27/2020 7:00 AM 0.42 0.0 M 0.0 M Drizzle yesterday, with not much precipitation until the evening. Rainshowers occasionally moderate from 10PM (2/26) until sometime after midnight. .31 by midnight. .11 overnight.
2/28/2020 7:00 AM 0.00 0.0 M M M
2/29/2020 7:00 AM T 0.0 M 0.0 M A few rain drops yesterday around 4PM... Didn't see any snow.
3/1/2020 7:00 AM 0.00 0.0 M M M
3/2/2020 7:00 AM 0.00 0.0 M M M
3/3/2020 7:00 AM 0.10 0.0 M 0.0 M Rain began around 7PM and ended around midnight (3/2)
3/4/2020 7:00 AM 0.03 0.0 M 0.0 M A few light rain showers yesterday morning and afternoon.
3/5/2020 7:00 AM 0.00 0.0 M M M
3/6/2020 7:00 AM 0.00 0.0 M M M
3/7/2020 7:00 AM 0.01 0.0 M 0.0 M Some light rain yesterday morning and early afternoon. (3/6)
3/8/2020 7:00 AM 0.00 0.0 M M M
3/9/2020 7:00 AM 0.00 0.0 M M M
3/10/2020 8:00 AM T 0.0 M M M Light rain at observation time.
3/11/2020 7:00 AM 0.05 0.0 M 0.0 M Some light rain yesterday, mostly in the morning.
3/12/2020 7:00 AM T T M M M A few drops of rain around 3 or 4 PM. (3/11)
3/13/2020 7:00 AM 0.22 0.0 M 0.0 M Rain in the AM hours before obs time.
3/14/2020 7:00 AM 0.00 0.0 M M M
3/15/2020 7:00 AM 0.24 0.0 M 0.0 M Rain began before midnight. .09 on calendar day (3/14) and .15 after midnight. Drizzle at obs time.
3/16/2020 7:00 AM 0.01 0.0 M 0.0 M Precip from yesterday (3/15) shortly after observation time.
3/17/2020 7:30 AM T 0.0 M 0.0 M A few drops at observation time.
3/18/2020 7:00 AM 0.00 0.0 M M M
3/19/2020 7:00 AM 0.75 0.0 M 0.0 M Rain began around 10PM (.12 on calendar day 3/18), .63 after midnight.
3/20/2020 7:00 AM 0.02 0.0 M 0.0 M Rain yesterday evening around 8PM, (3/19)
3/21/2020 7:00 AM 0.02 0.0 M 0.0 M A rain shower yesterday afternoon (T) and another sometime overnight.
3/22/2020 7:00 AM 0.00 0.0 M M M
3/23/2020 7:00 AM 0.09 0.0 M 0.0 M Rain began after midnight. Drizzle at obs time.
3/24/2020 7:00 AM 0.19 0.0 M 0.0 M Rain mostly in yesterday morning (3/23)
3/25/2020 8:00 AM 0.04 0.0 M 0.0 M Very light rain at obs time.
3/26/2020 7:00 AM 0.27 0.0 M 0.0 M Light rain and drizzle yesterday (3/25) most of the day
3/27/2020 7:00 AM 0.00 0.0 M M M
3/28/2020 7:00 AM 0.31 0.0 M 0.0 M Light rain at obs time. Rain began after midnight.
3/29/2020 7:00 AM 0.16 0.0 M 0.0 M Thunder around 9AM. Yesterday (3/28). AM rain turns to drizzle. Drizzle at observation time.
3/30/2020 7:00 AM 0.01 0.0 M 0.0 M Drizzle from yesterday morning amounts to .01 --
3/31/2020 7:00 AM 0.00 0.0 M M M
4/1/2020 7:00 AM 0.26 0.0 M 0.0 M Rain began around 5PM 3/31 and continued until after midnight. .25 on 3/31, .01 after midnight. With no snow observed in March, and no measurable snow since Jan 7 the season total snowfall is a miserably small 2.8 inches... unless we get one of those rare April snowfalls.
4/2/2020 7:00 AM T 0.0 M 0.0 M Rain shower around 6:30 PM 4/1.
4/3/2020 7:00 AM 0.00 0.0 M M M
4/4/2020 8:00 AM T 0.0 M M M Light rain at observation time.
4/5/2020 7:00 AM T 0.0 M M M Light rain yesterday morning. (4/4)
4/6/2020 7:00 AM 0.02 0.0 M 0.0 M Rain showers began around 10PM (3/5)
4/7/2020 7:00 AM 0.02 0.0 M 0.0 M AM rain, light rain at obs time.
4/8/2020 7:00 AM 0.30 0.0 M 0.0 M Rain showers off and on throughout the last 24-hrs. .16 (0700-2359) on 4/7. and .14 after midnight, mostly in a thundershowers at 4:20 AM.
4/9/2020 7:00 AM 0.14 0.0 M 0.0 M Rain around 5-6:30 AM
4/10/2020 7:00 AM 0.05 0.0 M 0.0 M Thunder shower yesterday around mid day. (4/9)
4/13/2020 7:25 AM 1.53 0.0 M 0.0 M Heavy Rain at observation time. Some rain showers yesterday morning that didn't amount to much (10:30 or so). Light rain began around 7PM and continued through the night (.19 by Midnight for 4/12 total). 1.34 overnight.
4/14/2020 7:00 AM 0.69 0.0 M M M Rain in the AM before around 10AM (.30) Thunderstorm around 2 PM (.39). (4/13)
4/15/2020 7:00 AM 0.32 0.0 M 0.0 M Rain began around 8PM (4/14). .22 by midnight, .10 after midnight.
4/16/2020 7:00 AM 0.00 0.0 M M M
4/17/2020 7:00 AM 0.00 0.0 M M M
4/18/2020 7:00 AM 0.04 0.0 M M M Light rain at observation time. Precip began around 9PM (4/17) and continued off and on (mostly off apparently) through the night. T by midnight.
4/19/2020 7:00 AM 0.02 0.0 M M M Light rain yesterday morning before around 10AM (4/18).
4/21/2020 7:00 AM 0.00 0.0 M M M
4/22/2020 7:00 AM 0.02 0.0 M M M Showers around noon yesterday (4/21)
4/24/2020 7:00 AM 0.92 0.0 M M M Light rain began around 5PM and continued through the night. .56 by midnight (4/23-4/24) and .36 afterwards.
4/25/2020 7:00 AM 0.06 0.0 M M M Light rain showers yesterday morning (4/24) before noon.
4/26/2020 7:00 AM 0.36 0.0 M M M Rain began after sunset. .09 on 2/25. .27 after midnight.
4/27/2020 7:00 AM 0.24 0.0 M M M Periods light rain showers most of the day yesterday. .18 (7AM - 9PM) .02 additional by midnight (4/26) . .04 after midnight. Drizzle at observation time.
4/29/2020 7:00 AM 0.03 0.0 M M M Rain shower around 7 PM (4/28)
4/30/2020 7:00 AM 0.04 0.0 M M M Rain occurred early in the morning.
5/1/2020 7:00 AM 1.56 0.0 M M M Rain all day yesterday, 1.02 by 3:30PM, .51 additional by 1AM, .03 afterwards.
5/2/2020 7:00 AM 0.09 0.0 M M M A rain shower yesterday mid morning (5/1)
5/3/2020 7:00 AM 0.00 0.0 M M M
5/4/2020 7:00 AM 0.46 0.0 M M M Thunder showers with mostly light rain 10 PM (5/3) through early AM hours.
5/5/2020 7:00 AM 0.00 0.0 M M M
5/6/2020 7:00 AM 0.21 0.0 M M M Light Rain began after sunset .14 on 4/5, .07 after midnight. Light rain at observation time.
5/7/2020 7:00 AM 0.32 0.0 M M M Missing report filled in on 5/31 from Davis weather station recording rainguage and 4-inch gauge amount total.
5/8/2020 7:00 AM 0.00 0.0 M M M
5/9/2020 7:00 AM 0.36 0.0 M M M Mostly light rain showers from Noon to 11 PM. One heavy shower around 8 PM (5/8).
5/10/2020 7:00 AM 0.00 0.0 M M M Light Frost Instrument level min temperatures 33.
5/11/2020 7:00 AM 0.01 0.0 M M M Ground wet from a rain shower not long before observation time.
5/12/2020 7:00 AM 0.00 0.0 M M M
5/13/2020 7:00 AM 0.00 0.0 M M M
5/14/2020 7:00 AM 0.00 0.0 M M M
5/15/2020 7:00 AM 0.00 0.0 M M M
5/16/2020 7:00 AM 0.00 0.0 M M M
5/17/2020 7:00 AM 0.00 0.0 M M M
5/18/2020 7:00 AM T 0.0 M M M
5/19/2020 7:00 AM 0.00 0.0 M M M
5/20/2020 7:00 AM 0.00 0.0 M M M
5/21/2020 7:00 AM 0.00 0.0 M M M
5/22/2020 7:15 AM 0.14 0.0 M M M Rain began not long before observation time. Light rain at observation time.
5/23/2020 7:00 AM 0.70 0.0 M M M Rain evenly split between yesterday (5/22) .35, and the AM hours of 5/23.
5/24/2020 7:00 AM 0.00 0.0 M M M
5/25/2020 7:00 AM 0.00 0.0 M M M
5/26/2020 7:00 AM 0.00 0.0 M M M
5/27/2020 7:00 AM 0.00 0.0 M M M
5/28/2020 7:15 AM 0.07 0.0 M M M Light rain at observation time.
5/29/2020 7:00 AM 0.10 0.0 M M M Rain yesterday morning (5/28).
5/30/2020 7:00 AM 0.08 0.0 M M M Trace of rain around 5:30 PM (5/29) .08 overnight after midnight.
5/31/2020 7:00 AM 0.00 0.0 M M M
6/1/2020 7:00 AM 0.00 0.0 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 T 0.0 M M M A few drops of rain around 12 Noon (6/3)
6/5/2020 7:00 AM 1.12 0.0 M M M Thunder showers began around 630 PM (6/4). .07 by 9PM, then heavier rain and thunder began at 10:30 , 84 by midnight (including the .07), .28 additional after midnight.
6/6/2020 7:00 AM 1.00 0.0 M M M Thundershowers from around 6-9 PM. Inner tube exactly filled for 1.00 inch total.
6/7/2020 7:00 AM 0.00 0.0 M M M
6/11/2020 7:00 AM 1.02 0.0 M M M Late observation. Was at beach.... Total on return = 1.08. Davis recording rain gauge had .06 between 9 - 11 AM on the 11, that goes to the total reported on the 12th, leaving 1.02 between 7AM 6/10 and 6/11. .54 recorded between 8 and 9 PM, the remainder strattling midnight from 10PM - 3 AM.
6/12/2020 7:00 AM 0.00 0.0 M M M Late report. .06 recorded by Davis wx station between 9 - 11 AM (6/11)
6/18/2020 7:00 AM 0.49 0.0 M M M Gentle thundershowers began yesterday around 5:30 PM and continued intermittently until around 9PM, then light rain continued until after midnight. .46 on calendar day 6/17, .03 mid - 7AM. Drizzle at observation time.
6/19/2020 7:00 AM 0.03 0.0 M M M Late report total from davis weather station and station records
6/20/2020 7:00 AM 0.19 0.0 M M M Rain and thunder showers developed in the afternoon. .04 around 3-5 PM, and .14 from around 930 (6/19) to just after midnight. (.01 after midnight).
6/21/2020 7:00 AM 0.38 0.0 M M M Thundershowers around noon.
6/23/2020 7:00 AM 0.04 0.0 M M M Lots of thunder, not much rain Yesterday around 5PM-6PM.
6/24/2020 7:00 AM T 0.0 M M M Thunder at around 2 PM... Just a few drops of rain.
6/26/2020 7:00 AM 0.58 0.0 M M M Brief Shower around 1 PM (Trace), then a thundershower from 6-7 PM, ending with a rainbow. (6/25)
6/27/2020 7:00 AM 0.00 0.0 M M M
6/28/2020 7:00 AM 0.00 0.0 M M M Thunder around 2PM?
6/29/2020 7:00 AM 0.00 0.0 M M M
6/30/2020 7:00 AM 0.00 0.0 M M M
7/1/2020 7:00 AM 0.09 0.0 M M M A brief rain shower at around 3 AM.
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
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 Thunder around 5PM, no rain.
7/7/2020 7:00 AM 0.59 0.0 M M M Thunderstorm around 6-7 PM.
7/8/2020 7:00 AM 0.24 0.0 M M M Thunderstorm yesterday (6/7) around 6PM. Clouds seemed to develop nearly overhead.
7/9/2020 7:00 AM 0.00 0.0 M M M
7/10/2020 8:00 AM 0.02 0.0 M M M Rain shower at 6AM according to Davis wx station.
7/11/2020 7:00 AM 0.01 0.0 M M M Time or of rain uncertain.
7/12/2020 7:00 AM 0.00 0.0 M M M
7/13/2020 7:00 AM 0.14 0.0 M M M Thundershower around 7PM. (7/12)
7/14/2020 7:00 AM 0.00 0.0 M M M
7/15/2020 7:00 AM 0.00 0.0 M M M
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 0.00 0.0 M M M
7/20/2020 7:00 AM 0.00 0.0 M M M
7/21/2020 7:00 AM T 0.0 M M M Just a few drops in a thundershower around 4PM.
7/22/2020 7:00 AM 0.38 0.0 M M M Thundershower around 7PM. One stray nearby strike (1000 feet or less) before rain began catches my wife and I off guard outdoors.
7/23/2020 7:00 AM 1.89 0.0 M M M Thunderstorm 4-6 PM (7/22). Numerous lightning. one direct strike (within 500 feet or so). .01 after midnight
7/24/2020 7:00 AM 0.24 0.0 M M M Thundershower around 7PM, Just a few thunders, and one or two loud boomers. .04 on calendar day 7/23, .20 in AM rain. Light rain at observation time.
7/25/2020 7:00 AM 0.03 0.0 M M M Rain just after obs time yesterday morning, and again in a thundershower around 8PM.
7/26/2020 7:00 AM 0.00 0.0 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 0.00 0.0 M M M
7/30/2020 7:00 AM 0.00 0.0 M M M
7/31/2020 7:00 AM 0.19 0.0 M M M Thundershower around 8PM last night (7/30) - only a few distant thunders. (.06), .13 in the AM hours (7/31) Light rain at obs time.
8/1/2020 7:00 AM 0.52 0.0 M M M Periods of light rain, occasionally moderate Yesterday (7/31) all day through about 10 PM.
8/2/2020 7:00 AM 0.01 0.0 M M M Rain Shower around 7PM (8/1).
8/3/2020 7:00 AM 0.00 0.0 M M M
8/4/2020 7:00 AM 1.70 0.0 M M M Rain began around 4:30 PM 8/3. Heavy rain in a thundershower from 5 to about 6PM, then mostly light rain and drizzle. Moderate to heavy rain from 3AM onward. Moderate rain at observation time.
8/5/2020 7:00 AM 1.33 0.0 M M M Heavy rain ended by Noon, except for one afternoon shower.
8/6/2020 7:00 AM 1.53 0.0 M M M Heavy Rain, numerous close lightning in thunderstorms 4-5AM.
8/7/2020 7:00 AM 0.02 0.0 M M M Light rain shower in the early evening. (8/6)
8/8/2020 7:00 AM 0.61 0.0 M M M Thundershower around 8PM (8/7)
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 0.01 0.0 M M M A morning Shower (8/12)
8/13/2020 7:00 AM 1.64 0.0 M M M Thunderstorms 5-7PM last evening (8/12)
8/14/2020 7:00 AM 0.36 0.0 M M M Gentle thundershowers yesterday morning around 9AM (8/13)
8/15/2020 7:00 AM 0.02 0.0 M M M Light rain shower yesterday Afternoon between about 4 and 6 PM (.01) 8/14, and another in the early AM hours.
8/16/2020 7:00 AM 1.10 0.0 M M M Light rain yesterday evening .14 between 7AM and Midnight (8/15), .96 so far on 8/16. Light rain at observation time.
8/17/2020 7:00 AM 0.03 0.0 M M M Light rain yesterday morning before noon. (8/16)
8/18/2020 7:00 AM 0.07 0.0 M M M Thundershower around 6PM 8/17.
8/19/2020 7:00 AM 0.05 0.0 M M M Light rain at observation time. Rain began around 6AM.
8/20/2020 7:00 AM 0.15 0.0 M M M Rain from yesterday morning before 11AM (8/19)
8/21/2020 7:00 AM 0.00 0.0 M M M
8/22/2020 7:00 AM 0.04 0.0 M M M Rain Showers after midnight.
8/23/2020 7:00 AM 0.01 0.0 M M M Occasional light showers cumulatively mounted to .01 over the last 24-hrs.
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 0.01 0.0 M M M Thundershower around 7PM.
8/27/2020 7:00 AM 0.00 0.0 M M M
8/28/2020 7:00 AM 0.00 0.0 M M M
8/29/2020 7:00 AM 0.54 0.0 M M M Thunderstorm with wind, 5PM, then occasional light rain and thunder through midnight. (.40 on 8/28). .14 additional rain after midnight.
8/30/2020 7:00 AM 0.11 0.0 M M M Light rain yesterday (8/29) morning before Noon.
8/31/2020 7:00 AM 0.00 0.0 M M M
9/1/2020 7:00 AM 0.41 0.0 M M M Light rain began around noon. .40 on 8/31 calendar day. .01 after midnight.
9/2/2020 7:00 AM 0.06 0.0 M M M Light rain began around 11PM .03 by 23:59 9/1, .03 after midnight.
9/3/2020 7:00 AM 0.77 0.0 M M M Thunderstorm around 8PM (9/2)
9/4/2020 7:00 AM 1.45 0.0 M M M Thunderstorm with numerous lightning, strong winds and heavy rain around 5PM. Occasional showers continued to just after midnight. (.01 recorded after midnight.)
9/5/2020 7:00 AM 0.00 0.0 M M M
9/6/2020 7:00 AM 0.00 0.0 M M M
9/7/2020 7:00 AM 0.00 0.0 M M M
9/8/2020 7:00 AM 0.00 0.0 M M M
9/9/2020 7:00 AM 0.00 0.0 M M M
9/10/2020 7:00 AM 0.23 0.0 M M M Occasional light rain from around 1PM - 11PM.
9/11/2020 7:00 AM 3.17 0.0 M M M Heavy rain from around 11AM - 3PM. Some thunder.
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 0.12 M M M M Was away -- Total is from 4 inch Gauge, Times are from the Davis Recording rain gauge. Rain began 9/17 just after 4PM, with intermittent measurable hourly precipitation until 3AM 9/18.
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 0.50 0.0 M M M Rain began at around 5PM, occasional light rain and drizzle until around midnight (.03 on 9/25) then some moderate rain from just after midnight to the sometime in the early AM hours (.47 between Midnight and 7AM.)
9/27/2020 7:00 AM 0.08 0.0 M M M Most rain occurred overnight, with around .02 in drizzle and rain before midnight.
9/28/2020 7:00 AM T 0.0 M M M Some drizzle yesterday morning around observation time, and overnight.
9/29/2020 7:00 AM 0.00 0.0 M M M
9/30/2020 7:00 AM 0.27 0.0 M M M Gentle rain probably after the cold front passage began around 7PM, .11 by about 11:30 PM 9/29.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/12/2020 9/13/2020 7:00 AM 2 0.05 M M Was away. Total from Gauge, times from Davis Recording Rain Gauge. Precipitation occurred very close to the 7AM obs time on 9/12, so I'll report the two day total rather to guess the times around the 7AM regular observation time.



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