Station Overview Station Location
Station Number MD-MG-52 Latitude 39.026707
Station Name Silver Spring 0.9 N Longitude -77.021998
County Montgomery Elevation (ft) 360



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 3.52 7.30 27 4.35 26 2.95 1 1 10 1 0.0 0 0
Nov 14 3.48 1.63 7 1.63 7 0.00 0 0 3 0 0.0 0 0
Dec 14 3.28 1.44 6 1.44 6 0.00 0 0 4 1 0.0 0 0
Jan 15 3.01 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 15 2.83 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 15 3.78 1.47 11 1.47 11 0.00 0 0 4 1 0.8 2 1
April 15 3.40 4.45 25 4.45 25 0.00 0 0 11 1 0.0 0 0
May 15 4.31 1.30 18 1.30 18 0.00 0 0 5 0 0.0 0 0
June 15 3.95 10.38 30 10.38 30 0.00 0 0 17 0 0.0 0 0
July 15 4.04 1.62 12 1.62 12 0.00 0 0 11 0 0.0 0 0
Aug 15 3.32 1.34 30 1.34 30 0.00 0 0 8 0 0.0 0 0
Sept 15 4.01 0.00 6 0.00 6 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 42.93" 30.93" 172 days 27.98" 171 2.95" 1 days 1 73 days 4 days 0.8" 2 days 1 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 2.95
10/2/2014
10/3/2014 T
10/4/2014 0.17
10/5/2014 0.00
10/6/2014 0.00
10/7/2014 0.00
10/8/2014 0.60
10/9/2014 0.00
10/10/2014 0.00
10/11/2014 0.35
10/12/2014 0.17
10/13/2014 0.00
10/14/2014 0.09
10/15/2014 0.04
10/16/2014 1.53
10/17/2014 0.00
10/18/2014 0.00
10/19/2014 0.00
10/20/2014 0.00
10/21/2014 0.01
10/22/2014 1.06
10/23/2014 0.33
10/24/2014 0.00
10/25/2014 0.00
10/26/2014 0.00
10/27/2014 0.00
10/28/2014 0.00
10/29/2014
10/30/2014
10/31/2014
11/1/2014
11/2/2014
11/3/2014
11/4/2014
11/5/2014
11/6/2014
11/7/2014
11/8/2014
11/9/2014
11/10/2014
11/11/2014
11/12/2014
11/13/2014
11/14/2014
11/15/2014
11/16/2014
11/17/2014
11/18/2014
11/19/2014
11/20/2014
11/21/2014
11/22/2014
11/23/2014
11/24/2014 0.51
11/25/2014 0.00
11/26/2014 0.35
11/27/2014 0.77
11/28/2014 0.00
11/29/2014 0.00
11/30/2014 0.00
12/1/2014 0.00
12/2/2014 0.17
12/3/2014 0.61
12/4/2014
12/5/2014 T
12/6/2014 0.03
12/7/2014 0.63
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 0.21
3/21/2015 0.49
3/22/2015 0.00
3/23/2015 0.00
3/24/2015 0.00
3/25/2015 0.00
3/26/2015 0.00
3/27/2015 0.76
3/28/2015 0.01
3/29/2015 0.00
3/30/2015 T
3/31/2015
Day of YearDaily PrcpMultiday Prcp
4/1/2015 0.03
4/2/2015
4/3/2015
4/4/2015
4/5/2015
4/6/2015
4/7/2015 0.04
4/8/2015 0.74
4/9/2015 0.49
4/10/2015 0.02
4/11/2015 T
4/12/2015 0.00
4/13/2015 0.00
4/14/2015 0.29
4/15/2015 0.30
4/16/2015 0.00
4/17/2015 0.20
4/18/2015 0.00
4/19/2015 0.00
4/20/2015 1.54
4/21/2015 0.56
4/22/2015 0.00
4/23/2015 0.00
4/24/2015 0.00
4/25/2015 0.00
4/26/2015 0.24
4/27/2015 0.00
4/28/2015 0.00
4/29/2015 0.00
4/30/2015 0.00
5/1/2015 0.00
5/2/2015 0.00
5/3/2015 0.00
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 0.29
5/18/2015 0.01
5/19/2015 0.50
5/20/2015 0.00
5/21/2015 0.00
5/22/2015 0.31
5/23/2015 0.00
5/24/2015 0.00
5/25/2015 0.00
5/26/2015 0.00
5/27/2015 0.00
5/28/2015 0.19
5/29/2015 0.00
5/30/2015 0.00
5/31/2015 0.00
6/1/2015 0.01
6/2/2015 0.86
6/3/2015 0.14
6/4/2015 0.10
6/5/2015 0.58
6/6/2015 0.00
6/7/2015 0.00
6/8/2015 0.00
6/9/2015 1.06
6/10/2015 0.00
6/11/2015 0.00
6/12/2015 0.00
6/13/2015 0.00
6/14/2015 0.51
6/15/2015 0.14
6/16/2015 0.01
6/17/2015 0.00
6/18/2015 0.51
6/19/2015 1.19
6/20/2015 0.01
6/21/2015 1.61
6/22/2015 0.00
6/23/2015 0.00
6/24/2015 0.81
6/25/2015 0.00
6/26/2015 0.63
6/27/2015 0.24
6/28/2015 1.97
6/29/2015 0.00
6/30/2015 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2015 0.52
7/2/2015 0.02
7/3/2015 0.13
7/4/2015 0.04
7/5/2015 0.66
7/6/2015 0.02
7/7/2015 0.02
7/8/2015 0.00
7/9/2015 0.01
7/10/2015 0.02
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 0.12
7/31/2015 0.06
8/1/2015 0.00
8/2/2015 0.00
8/3/2015 0.00
8/4/2015 0.00
8/5/2015 0.37
8/6/2015 0.00
8/7/2015 0.02
8/8/2015 0.00
8/9/2015 0.00
8/10/2015 0.42
8/11/2015 0.08
8/12/2015 0.03
8/13/2015 0.00
8/14/2015 0.00
8/15/2015 0.00
8/16/2015 0.00
8/17/2015 0.00
8/18/2015 0.00
8/19/2015 0.00
8/20/2015 0.01
8/21/2015 0.13
8/22/2015 0.00
8/23/2015 0.00
8/24/2015 0.00
8/25/2015 0.28
8/26/2015 0.00
8/27/2015 0.00
8/28/2015 0.00
8/29/2015
8/30/2015 0.00
8/31/2015 0.00
9/1/2015 0.00
9/2/2015 0.00
9/3/2015 0.00
9/4/2015 0.00
9/5/2015 0.00
9/6/2015 0.00
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
10/3/2014 7:00 AM T M M M M
10/4/2014 7:00 AM 0.17 M M M M
10/5/2014 7:00 AM 0.00 0.0 M M M It's 43º.
10/6/2014 7:00 AM 0.00 0.0 M M M
10/7/2014 7:00 AM 0.00 0.0 M M M
10/8/2014 7:00 AM 0.60 M M M M 0.04 rec'd by early evening. T-storm passed around 10:30 pm, with brief period of heavy rain and wind. 0.60 rec'd by 1:00 am.
10/9/2014 7:00 AM 0.00 0.0 M M M
10/10/2014 7:00 AM 0.00 0.0 M M M
10/11/2014 7:00 AM 0.35 M M M M
10/12/2014 7:00 AM 0.17 M M M M
10/13/2014 7:00 AM 0.00 0.0 M M M
10/14/2014 7:00 AM 0.09 M M M M
10/15/2014 7:00 AM 0.04 M M M M
10/16/2014 7:00 AM 1.53 M M M M
10/17/2014 7:00 AM 0.00 0.0 M M M
10/18/2014 7:00 AM 0.00 0.0 M M M
10/19/2014 7:00 AM 0.00 0.0 M M M
10/20/2014 7:00 AM 0.00 0.0 M M M It's 43 degrees.
10/21/2014 7:00 AM 0.01 M M M M Rain fell near midnight. 53 degrees at time of observation.
10/22/2014 8:00 AM 1.06 M M M M T-storm at 6:15 pm, more rain near midnight. Lt rain continues at time of observation.
10/23/2014 8:00 AM 0.33 M M M M
10/24/2014 7:00 AM 0.00 0.0 M M M
10/25/2014 7:00 AM 0.00 0.0 M M M
10/26/2014 7:00 AM 0.00 0.0 M M M
10/27/2014 7:00 AM 0.00 0.0 M M M
10/28/2014 7:00 AM 0.00 0.0 M M M
11/24/2014 7:00 AM 0.51 M M M M The temp is 63F.
11/25/2014 7:00 AM 0.00 0.0 M M M
11/26/2014 7:00 AM 0.35 M M M M Lt rain at time of observation.
11/27/2014 7:00 AM 0.77 M M M M
11/28/2014 7:00 AM 0.00 0.0 M M M
11/29/2014 7:00 AM 0.00 0.0 M M M
11/30/2014 7:00 AM 0.00 0.0 M M M
12/1/2014 7:00 AM 0.00 0.0 M M M
12/2/2014 7:00 AM 0.17 M M M M Lt. rain at time of observation.
12/3/2014 7:00 AM 0.61 M M M M
12/5/2014 7:00 AM T M M M M
12/6/2014 7:00 AM 0.03 M M M M
12/7/2014 7:00 AM 0.63 M M M M
3/20/2015 7:00 AM 0.21 0.3 M M M 37º with lightly falling fluffy snow, about .25" so far on styrofoam snow board, melting upon contact with hard surfaces including in the rain gauge.
3/21/2015 7:00 AM 0.49 0.5 M 1.0 M Accumulation of new snow is not accurate because temperatures were above freezing and snow changed to rain yesterday. 35º now. Most snow has disappeared from paved surfaces. 0.75" remains on snow board.
3/22/2015 7:00 AM 0.00 0.0 M M M
3/23/2015 7:00 AM 0.00 0.0 M M M
3/24/2015 7:00 AM 0.00 0.0 M M M
3/25/2015 7:00 AM 0.00 0.0 M M M
3/26/2015 7:00 AM 0.00 0.0 M M M
3/27/2015 8:00 AM 0.76 M M M M
3/28/2015 7:00 AM 0.01 M M M M
3/29/2015 7:00 AM 0.00 0.0 M M M
3/30/2015 7:00 AM T M M M M
4/1/2015 7:00 AM 0.03 M M M M
4/7/2015 7:00 AM 0.04 M M M M
4/8/2015 7:00 AM 0.74 M M M M
4/9/2015 8:00 AM 0.49 M M M M
4/10/2015 7:00 AM 0.02 M M M M
4/11/2015 7:00 AM T M M M M
4/12/2015 7:00 AM 0.00 0.0 M M M
4/13/2015 7:00 AM 0.00 0.0 M M M
4/14/2015 7:00 AM 0.29 M M M M Moderate rain at this time.
4/15/2015 7:00 AM 0.30 M M M M
4/16/2015 7:00 AM 0.00 0.0 M M M
4/17/2015 7:00 AM 0.20 M M M M
4/18/2015 7:00 AM 0.00 0.0 M M M
4/19/2015 7:00 AM 0.00 0.0 M M M
4/20/2015 7:00 AM 1.54 M M M M
4/21/2015 7:00 AM 0.56 M M M M
4/22/2015 7:00 AM 0.00 0.0 M M M
4/23/2015 7:00 AM 0.00 0.0 M M M
4/24/2015 7:00 AM 0.00 0.0 M M M
4/25/2015 7:00 AM 0.00 0.0 M M M
4/26/2015 7:00 AM 0.24 M M M M
4/27/2015 7:00 AM 0.00 0.0 M M M
4/28/2015 7:00 AM 0.00 0.0 M M M
4/29/2015 7:00 AM 0.00 0.0 M M M
4/30/2015 7:00 AM 0.00 0.0 M M M
5/1/2015 7:00 AM 0.00 0.0 M M M
5/2/2015 7:00 AM 0.00 0.0 M M M
5/3/2015 7:00 AM 0.00 0.0 M M M
5/17/2015 7:00 AM 0.29 M M M M Most from yesterday's late afternoon t-storm, which brought more thunder than rain. Very light misting at time of observation.
5/18/2015 7:00 AM 0.01 M M M M
5/19/2015 7:00 AM 0.50 M M M M
5/20/2015 7:00 AM 0.00 0.0 M M M
5/21/2015 7:00 AM 0.00 0.0 M M M
5/22/2015 7:00 AM 0.31 M M M M
5/23/2015 7:00 AM 0.00 0.0 M M M
5/24/2015 7:00 AM 0.00 0.0 M M M
5/25/2015 7:00 AM 0.00 0.0 M M M
5/26/2015 7:00 AM 0.00 0.0 M M M
5/27/2015 7:00 AM 0.00 0.0 M M M
5/28/2015 7:00 AM 0.19 M M M M
5/29/2015 7:00 AM 0.00 0.0 M M M
5/30/2015 7:00 AM 0.00 0.0 M M M
5/31/2015 7:00 AM 0.00 0.0 M M M
6/1/2015 7:00 AM 0.01 M M M M Heavy downpour near 2 am, but brief.
6/2/2015 7:00 AM 0.86 M M M M
6/3/2015 7:00 AM 0.14 M M M M
6/4/2015 7:00 AM 0.10 M M M M
6/5/2015 7:00 AM 0.58 M M M M
6/6/2015 7:00 AM 0.00 0.0 M M M
6/7/2015 7:00 AM 0.00 0.0 M M M
6/8/2015 7:00 AM 0.00 0.0 M M M
6/9/2015 6:00 AM 1.06 M M M M
6/10/2015 7:00 AM 0.00 0.0 M M M
6/11/2015 7:00 AM 0.00 0.0 M M M
6/12/2015 7:00 AM 0.00 0.0 M M M
6/13/2015 7:00 AM 0.00 0.0 M M M
6/14/2015 7:00 AM 0.51 M M M M
6/15/2015 7:00 AM 0.14 M M M M All rain is from late afternoon t-storm.
6/16/2015 7:00 AM 0.01 M M M M
6/17/2015 7:00 AM 0.00 0.0 M M M
6/18/2015 7:00 AM 0.51 M M M M Heavy rain briefly at 1:50 am.
6/19/2015 7:00 AM 1.19 M M M M Most rain fell within 30 minute period with heavy thunder. It stopped suddenly followed by sunshine.
6/20/2015 7:00 AM 0.01 M M M M
6/21/2015 7:00 AM 1.61 M M M M
6/22/2015 7:00 AM 0.00 0.0 M M M
6/23/2015 7:00 AM 0.00 0.0 M M M
6/24/2015 7:00 AM 0.81 M M M M
6/25/2015 7:00 AM 0.00 0.0 M M M
6/26/2015 6:00 AM 0.63 M M M M Rained very heavily near 9:40 pm. Street and walkways are completely dry now.
6/27/2015 7:00 AM 0.24 M M M M Light rain at time of observation.
6/28/2015 7:00 AM 1.97 M M M M
6/29/2015 7:00 AM 0.00 0.0 M M M
6/30/2015 7:00 AM 0.00 0.0 M M M
7/1/2015 7:00 AM 0.52 M M M M
7/2/2015 7:00 AM 0.02 M M M M Light rain falling at time of observation.
7/3/2015 7:00 AM 0.13 M M M M
7/4/2015 7:00 AM 0.04 M M M M
7/5/2015 7:00 AM 0.66 M M M M
7/6/2015 7:00 AM 0.02 M M M M
7/7/2015 7:00 AM 0.02 M M M M
7/8/2015 7:00 AM 0.00 0.0 M M M
7/9/2015 7:00 AM 0.01 M M M M
7/10/2015 7:00 AM 0.02 M M M M
7/30/2015 7:00 AM 0.12 M M M M
7/31/2015 7:00 AM 0.06 M M M M
8/1/2015 7:00 AM 0.00 0.0 M M M
8/2/2015 7:00 AM 0.00 0.0 M M M
8/3/2015 7:00 AM 0.00 0.0 M M M
8/4/2015 7:00 AM 0.00 0.0 M M M
8/5/2015 7:00 AM 0.37 M M M M
8/6/2015 7:00 AM 0.00 0.0 M M M
8/7/2015 7:00 AM 0.02 M M M M
8/8/2015 7:00 AM 0.00 0.0 M M M
8/9/2015 7:00 AM 0.00 0.0 M M M
8/10/2015 9:00 AM 0.42 M M M M
8/11/2015 7:00 AM 0.08 M M M M
8/12/2015 7:00 AM 0.03 M M M M
8/13/2015 7:00 AM 0.00 0.0 M M M
8/14/2015 7:00 AM 0.00 0.0 M M M
8/15/2015 7:00 AM 0.00 0.0 M M M
8/16/2015 7:00 AM 0.00 0.0 M M M
8/17/2015 7:00 AM 0.00 0.0 M M M
8/18/2015 7:00 AM 0.00 0.0 M M M
8/19/2015 7:00 AM 0.00 0.0 M M M
8/20/2015 7:00 AM 0.01 M M M M
8/21/2015 7:00 AM 0.13 M M M M Lots of thunder, but not much rain.
8/22/2015 7:00 AM 0.00 0.0 M M M
8/23/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
8/24/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
8/25/2015 7:00 AM 0.28 M M M M Sent via CoCoRaHS Observer for iOS
8/26/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
8/27/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
8/28/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
8/30/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
8/31/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/1/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/2/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/3/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/4/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/5/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/6/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/30/2014 10/01/2014 8:00 PM 2 2.95 M M



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