Station Overview Station Location
Station Number MD-AA-27 Latitude 39.13732
Station Name Severn 1.7 E Longitude -76.65905
County Anne Arundel Elevation (ft) 151



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 3.61 5.14 14 2.53 5 2.61 9 2 3 0 0.0 0 0
Nov 19 3.40 1.24 5 1.24 5 0.00 0 0 4 0 0.0 0 0
Dec 19 3.43 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 20 3.17 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 20 2.91 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 20 3.92 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 20 3.38 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 20 4.23 1.74 4 1.74 4 0.00 0 0 2 0 0.0 0 0
June 20 3.56 0.32 25 0.32 1 0.00 24 0 1 0 0.0 0 0
July 20 4.08 5.23 10 0.90 2 4.33 8 1 2 0 0.0 0 0
Aug 20 3.37 13.91 28 8.81 17 5.10 11 3 14 1 0.0 0 0
Sept 20 3.99 3.86 18 3.85 10 0.01 8 1 7 0 0.0 0 0
Water Year Totals: 43.05" 31.44" 104 days 19.39" 44 12.05" 60 days 7 33 days 1 days 0.0" 0 days 0 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
10/8/2019
10/9/2019
10/10/2019
10/11/2019
10/12/2019
10/13/2019
10/14/2019
10/15/2019
10/16/2019
10/17/2019 1.31
10/18/2019
10/19/2019 **
10/20/2019 **
10/21/2019 **
10/22/2019 1.36
10/23/2019 **
10/24/2019 **
10/25/2019 **
10/26/2019 **
10/27/2019 1.25
10/28/2019 0.62
10/29/2019 0.00
10/30/2019 0.00
10/31/2019 0.60
11/1/2019 0.93
11/2/2019
11/3/2019
11/4/2019
11/5/2019
11/6/2019
11/7/2019
11/8/2019 0.12
11/9/2019
11/10/2019
11/11/2019
11/12/2019
11/13/2019 0.01
11/14/2019 0.00
11/15/2019
11/16/2019
11/17/2019
11/18/2019
11/19/2019 0.18
11/20/2019
11/21/2019
11/22/2019
11/23/2019
11/24/2019
11/25/2019
11/26/2019
11/27/2019
11/28/2019
11/29/2019
11/30/2019
12/1/2019
12/2/2019
12/3/2019
12/4/2019
12/5/2019
12/6/2019
12/7/2019
12/8/2019
12/9/2019
12/10/2019
12/11/2019
12/12/2019
12/13/2019
12/14/2019
12/15/2019
12/16/2019
12/17/2019
12/18/2019
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
12/31/2019
Day of YearDaily PrcpMultiday Prcp
1/1/2020
1/2/2020
1/3/2020
1/4/2020
1/5/2020
1/6/2020
1/7/2020
1/8/2020
1/9/2020
1/10/2020
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
1/26/2020
1/27/2020
1/28/2020
1/29/2020
1/30/2020
1/31/2020
2/1/2020
2/2/2020
2/3/2020
2/4/2020
2/5/2020
2/6/2020
2/7/2020
2/8/2020
2/9/2020
2/10/2020
2/11/2020
2/12/2020
2/13/2020
2/14/2020
2/15/2020
2/16/2020
2/17/2020
2/18/2020
2/19/2020
2/20/2020
2/21/2020
2/22/2020
2/23/2020
2/24/2020
2/25/2020
2/26/2020
2/27/2020
2/28/2020
2/29/2020
3/1/2020
3/2/2020
3/3/2020
3/4/2020
3/5/2020
3/6/2020
3/7/2020
3/8/2020
3/9/2020
3/10/2020
3/11/2020
3/12/2020
3/13/2020
3/14/2020
3/15/2020
3/16/2020
3/17/2020
3/18/2020
3/19/2020
3/20/2020
3/21/2020
3/22/2020
3/23/2020
3/24/2020
3/25/2020
3/26/2020
3/27/2020
3/28/2020
3/29/2020
3/30/2020
3/31/2020
Day of YearDaily PrcpMultiday Prcp
4/1/2020
4/2/2020
4/3/2020
4/4/2020
4/5/2020
4/6/2020
4/7/2020
4/8/2020
4/9/2020
4/10/2020
4/11/2020
4/12/2020
4/13/2020
4/14/2020
4/15/2020
4/16/2020
4/17/2020
4/18/2020
4/19/2020
4/20/2020
4/21/2020
4/22/2020
4/23/2020
4/24/2020
4/25/2020
4/26/2020
4/27/2020
4/28/2020
4/29/2020
4/30/2020
5/1/2020 1.30
5/2/2020
5/3/2020 0.00
5/4/2020 0.44
5/5/2020 0.00
5/6/2020
5/7/2020
5/8/2020
5/9/2020
5/10/2020
5/11/2020
5/12/2020
5/13/2020
5/14/2020
5/15/2020
5/16/2020
5/17/2020
5/18/2020
5/19/2020
5/20/2020
5/21/2020
5/22/2020
5/23/2020
5/24/2020
5/25/2020
5/26/2020
5/27/2020
5/28/2020
5/29/2020
5/30/2020
5/31/2020
6/1/2020
6/2/2020
6/3/2020
6/4/2020
6/5/2020
6/6/2020 0.32
6/7/2020 **
6/8/2020 **
6/9/2020 **
6/10/2020 **
6/11/2020 **
6/12/2020 **
6/13/2020 **
6/14/2020 **
6/15/2020 **
6/16/2020 **
6/17/2020 **
6/18/2020 **
6/19/2020 **
6/20/2020 **
6/21/2020 **
6/22/2020 **
6/23/2020 **
6/24/2020 **
6/25/2020 **
6/26/2020 **
6/27/2020 **
6/28/2020 **
6/29/2020 **
6/30/2020 **
Day of YearDaily PrcpMultiday Prcp
7/1/2020 4.33
7/2/2020
7/3/2020
7/4/2020
7/5/2020
7/6/2020
7/7/2020
7/8/2020
7/9/2020
7/10/2020
7/11/2020
7/12/2020
7/13/2020
7/14/2020
7/15/2020
7/16/2020
7/17/2020
7/18/2020
7/19/2020
7/20/2020
7/21/2020
7/22/2020
7/23/2020 0.59
7/24/2020 0.31
7/25/2020 **
7/26/2020 **
7/27/2020 **
7/28/2020 **
7/29/2020 **
7/30/2020 **
7/31/2020 **
8/1/2020 **
8/2/2020 **
8/3/2020 **
8/4/2020 1.76
8/5/2020 2.19
8/6/2020 0.53
8/7/2020 T
8/8/2020 **
8/9/2020 **
8/10/2020 **
8/11/2020 **
8/12/2020 1.28
8/13/2020 2.75
8/14/2020 0.86
8/15/2020 M **
8/16/2020 M 2.06
8/17/2020 0.11
8/18/2020 0.36
8/19/2020 0.05
8/20/2020 0.51
8/21/2020
8/22/2020
8/23/2020 0.00
8/24/2020 0.02
8/25/2020 0.06
8/26/2020 0.09
8/27/2020
8/28/2020 0.07
8/29/2020 1.18
8/30/2020 0.03
8/31/2020 0.00
9/1/2020 0.17
9/2/2020 0.02
9/3/2020 0.30
9/4/2020 1.91
9/5/2020 0.00
9/6/2020 0.00
9/7/2020
9/8/2020
9/9/2020
9/10/2020 0.10
9/11/2020 1.05
9/12/2020 **
9/13/2020 0.01
9/14/2020
9/15/2020
9/16/2020
9/17/2020
9/18/2020 0.30
9/19/2020 0.00
9/20/2020
9/21/2020
9/22/2020
9/23/2020
9/24/2020
9/25/2020 **
9/26/2020 **
9/27/2020 **
9/28/2020 **
9/29/2020 **
9/30/2020 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/17/2019 7:00 AM 1.31 M M M M
10/28/2019 7:00 AM 0.62 M M M M
10/29/2019 7:00 AM 0.00 M M M M
10/30/2019 7:00 AM 0.00 M M M M
10/31/2019 7:31 AM 0.60 M M M M
11/1/2019 7:00 AM 0.93 M M M M
11/8/2019 7:00 AM 0.12 M M M M
11/13/2019 7:00 AM 0.01 M M M M
11/14/2019 7:00 AM 0.00 M M M M
11/19/2019 7:00 AM 0.18 M M M M
5/1/2020 10:00 AM 1.30 M M M M
5/3/2020 7:00 AM 0.00 M M M M
5/4/2020 7:00 AM 0.44 M M M M
5/5/2020 7:00 AM 0.00 M M M M
6/6/2020 7:00 AM 0.32 M M M M
7/23/2020 7:00 AM 0.59 M M M M
7/24/2020 8:32 AM 0.31 M M M M
8/5/2020 7:00 AM 2.19 M M M M
8/6/2020 7:00 AM 0.53 M M M M
8/7/2020 7:00 AM T M M M M
8/13/2020 7:34 AM 2.75 M M M M
8/14/2020 7:00 AM 0.86 M M M M
8/15/2020 3:10 PM M M M M M {EDIT: Observer reported 0.14 for new precip. This is standing out as an error because this is not a 24 hour report. Changed report of 0.14 to NA until observer can be contacted and the correct report form can be submitted. Submission Time Before EDIT: 8/15/2020 3:11 PM CoCoSTAFF DNT}
8/16/2020 9:06 AM M M M M M {EDIT: Observer reported 1.92 for new precip. This is standing out as an error because this is not a 24 hour report. Changed report of 1.92 to NA until observer can be contacted and the correct report form can be submitted. Submission Time Before EDIT: 8/16/2020 9:07 AM CoCoSTAFF DNT}
8/17/2020 7:00 AM 0.11 M M M M
8/18/2020 7:00 AM 0.36 M M M M
8/19/2020 7:28 AM 0.05 M M M M
8/20/2020 7:00 AM 0.51 M M M M
8/23/2020 7:00 AM 0.00 0.0 M M M
8/24/2020 7:00 AM 0.02 M M M M
8/25/2020 7:00 AM 0.06 M M M M We seemed to get just the edge of a storm. It only rained here for a few minutes, though I know it rained in nearby locations for much longer.
8/26/2020 7:00 AM 0.09 M M M M
8/28/2020 7:00 AM 0.07 M M M M
8/29/2020 9:58 AM 1.18 M M M M
8/30/2020 7:00 AM 0.03 M M M M
8/31/2020 7:00 AM 0.00 0.0 M M M
9/1/2020 7:00 AM 0.17 M M M M
9/2/2020 7:00 AM 0.02 M M M M
9/3/2020 7:00 AM 0.30 M M M M
9/4/2020 7:00 AM 1.91 M M M M
9/5/2020 7:00 AM 0.00 0.0 M M M
9/6/2020 7:00 AM 0.00 M M M M
9/10/2020 7:52 AM 0.10 M M M M
9/11/2020 7:00 AM 1.05 M M M M
9/18/2020 7:00 AM 0.30 M M M M
9/19/2020 7:00 AM 0.00 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/19/2019 10/22/2019 7:23 AM 4 1.36 M M
10/23/2019 10/27/2019 8:53 AM 5 1.25 0.0 M
6/7/2020 7/01/2020 7:00 AM 25 4.33 M M
7/25/2020 8/04/2020 7:00 AM 11 1.76 M M
8/8/2020 8/12/2020 7:00 AM 5 1.28 M M
8/15/2020 8/16/2020 9:06 AM 2 2.06 M M
9/12/2020 9/13/2020 7:00 AM 2 0.01 M M
9/25/2020 10/01/2020 7:00 AM 7 1.95 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