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 11 3.61 0.25 3 0.25 3 0.00 0 0 2 0 0.0 0 0
Nov 11 3.40 1.61 4 1.61 4 0.00 0 0 4 0 0.0 0 0
Dec 11 3.43 3.52 9 3.52 9 0.00 0 0 4 0 0.0 0 0
Jan 12 3.17 0.21 11 0.21 11 0.00 0 0 3 0 0.0 0 0
Feb 12 2.91 0.00 5 0.00 0 0.00 5 0 0 0 0.0 0 0
March 12 3.92 2.69 5 0.00 0 2.69 5 1 0 0 0.0 0 0
April 12 3.38 0.16 5 0.16 2 0.00 3 0 1 0 0.0 0 0
May 12 4.23 1.44 13 1.20 4 0.24 9 1 4 0 0.0 0 0
June 12 3.56 2.16 30 1.71 18 0.45 12 1 7 0 0.0 0 0
July 12 4.08 3.77 32 0.51 2 3.26 30 2 2 0 0.0 0 0
Aug 12 3.37 6.91 31 0.29 11 6.62 20 5 4 0 0.0 0 0
Sept 12 3.99 3.54 30 2.28 20 1.26 10 2 6 0 0.0 0 0
Water Year Totals: 43.05" 26.26" 178 days 11.74" 84 14.52" 94 days 12 37 days 0 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
10/1/2011
10/2/2011
10/3/2011
10/4/2011
10/5/2011 0.00
10/6/2011
10/7/2011
10/8/2011
10/9/2011
10/10/2011
10/11/2011
10/12/2011
10/13/2011
10/14/2011
10/15/2011
10/16/2011
10/17/2011
10/18/2011
10/19/2011
10/20/2011
10/21/2011
10/22/2011
10/23/2011
10/24/2011
10/25/2011
10/26/2011
10/27/2011 0.11
10/28/2011 0.14
10/29/2011
10/30/2011
10/31/2011
11/1/2011 0.07
11/2/2011
11/3/2011
11/4/2011
11/5/2011
11/6/2011
11/7/2011
11/8/2011
11/9/2011
11/10/2011
11/11/2011
11/12/2011
11/13/2011
11/14/2011
11/15/2011
11/16/2011
11/17/2011
11/18/2011
11/19/2011
11/20/2011
11/21/2011 0.22
11/22/2011 0.08
11/23/2011 1.24
11/24/2011
11/25/2011
11/26/2011
11/27/2011
11/28/2011
11/29/2011
11/30/2011
12/1/2011 0.00
12/2/2011 0.00
12/3/2011 0.00
12/4/2011 0.00
12/5/2011 0.00
12/6/2011 0.05
12/7/2011 0.94
12/8/2011 1.82
12/9/2011
12/10/2011
12/11/2011
12/12/2011
12/13/2011
12/14/2011
12/15/2011
12/16/2011
12/17/2011
12/18/2011
12/19/2011
12/20/2011
12/21/2011
12/22/2011
12/23/2011
12/24/2011
12/25/2011
12/26/2011
12/27/2011
12/28/2011 0.71
12/29/2011
12/30/2011
12/31/2011
Day of YearDaily PrcpMultiday Prcp
1/1/2012
1/2/2012
1/3/2012
1/4/2012
1/5/2012
1/6/2012
1/7/2012
1/8/2012 0.00
1/9/2012 0.00
1/10/2012 0.04
1/11/2012 0.00
1/12/2012 0.00
1/13/2012 0.00
1/14/2012 0.00
1/15/2012 0.00
1/16/2012 0.00
1/17/2012 0.11
1/18/2012 0.06
1/19/2012
1/20/2012
1/21/2012
1/22/2012
1/23/2012
1/24/2012
1/25/2012
1/26/2012
1/27/2012
1/28/2012
1/29/2012
1/30/2012
1/31/2012
2/1/2012
2/2/2012
2/3/2012
2/4/2012
2/5/2012
2/6/2012
2/7/2012
2/8/2012
2/9/2012
2/10/2012
2/11/2012
2/12/2012
2/13/2012
2/14/2012
2/15/2012
2/16/2012
2/17/2012
2/18/2012
2/19/2012
2/20/2012
2/21/2012
2/22/2012
2/23/2012
2/24/2012
2/25/2012 **
2/26/2012 **
2/27/2012 **
2/28/2012 **
2/29/2012 **
3/1/2012 **
3/2/2012 **
3/3/2012 **
3/4/2012 **
3/5/2012 2.69
3/6/2012
3/7/2012
3/8/2012
3/9/2012
3/10/2012
3/11/2012
3/12/2012
3/13/2012
3/14/2012
3/15/2012
3/16/2012
3/17/2012
3/18/2012
3/19/2012
3/20/2012
3/21/2012
3/22/2012
3/23/2012
3/24/2012
3/25/2012
3/26/2012
3/27/2012
3/28/2012
3/29/2012
3/30/2012
3/31/2012
Day of YearDaily PrcpMultiday Prcp
4/1/2012
4/2/2012
4/3/2012
4/4/2012
4/5/2012
4/6/2012
4/7/2012
4/8/2012
4/9/2012 0.00
4/10/2012
4/11/2012
4/12/2012
4/13/2012
4/14/2012
4/15/2012
4/16/2012
4/17/2012
4/18/2012
4/19/2012 0.16
4/20/2012
4/21/2012
4/22/2012
4/23/2012
4/24/2012
4/25/2012
4/26/2012
4/27/2012
4/28/2012 **
4/29/2012 **
4/30/2012 **
5/1/2012 0.24
5/2/2012
5/3/2012
5/4/2012
5/5/2012
5/6/2012
5/7/2012
5/8/2012
5/9/2012
5/10/2012
5/11/2012
5/12/2012
5/13/2012
5/14/2012
5/15/2012 0.49
5/16/2012
5/17/2012
5/18/2012
5/19/2012
5/20/2012
5/21/2012 0.14
5/22/2012 0.55
5/23/2012 0.02
5/24/2012 **
5/25/2012 **
5/26/2012 **
5/27/2012 **
5/28/2012 **
5/29/2012 **
5/30/2012 **
5/31/2012 **
6/1/2012 0.45
6/2/2012 1.02
6/3/2012 0.00
6/4/2012 0.02
6/5/2012 0.05
6/6/2012 0.00
6/7/2012 0.00
6/8/2012 0.20
6/9/2012 0.00
6/10/2012 0.00
6/11/2012 0.00
6/12/2012 0.13
6/13/2012 0.24
6/14/2012 0.00
6/15/2012 0.00
6/16/2012 0.00
6/17/2012 0.00
6/18/2012 0.00
6/19/2012 0.05
6/20/2012 **
6/21/2012 **
6/22/2012 **
6/23/2012 **
6/24/2012 **
6/25/2012 **
6/26/2012 **
6/27/2012 **
6/28/2012 **
6/29/2012 **
6/30/2012 **
Day of YearDaily PrcpMultiday Prcp
7/1/2012 **
7/2/2012 **
7/3/2012 **
7/4/2012 **
7/5/2012 **
7/6/2012 **
7/7/2012 **
7/8/2012 **
7/9/2012 **
7/10/2012 1.21
7/11/2012 0.01
7/12/2012 **
7/13/2012 **
7/14/2012 **
7/15/2012 **
7/16/2012 **
7/17/2012 **
7/18/2012 **
7/19/2012 **
7/20/2012 2.05
7/21/2012 0.50 **
7/22/2012 **
7/23/2012 **
7/24/2012 **
7/25/2012 **
7/26/2012 **
7/27/2012 **
7/28/2012 **
7/29/2012 **
7/30/2012 **
7/31/2012 **
8/1/2012 **
8/2/2012 **
8/3/2012 1.21
8/4/2012 **
8/5/2012 **
8/6/2012 **
8/7/2012 **
8/8/2012 0.11
8/9/2012 0.00
8/10/2012 0.06
8/11/2012 **
8/12/2012 **
8/13/2012 1.72
8/14/2012 0.00
8/15/2012 0.03
8/16/2012 0.00
8/17/2012 **
8/18/2012 **
8/19/2012 **
8/20/2012 0.30
8/21/2012 0.16
8/22/2012 0.00
8/23/2012 0.00
8/24/2012 0.00
8/25/2012 0.00
8/26/2012 **
8/27/2012 3.28
8/28/2012 0.04
8/29/2012 **
8/30/2012 **
8/31/2012 **
9/1/2012 **
9/2/2012 **
9/3/2012 **
9/4/2012 **
9/5/2012 0.57
9/6/2012 0.88
9/7/2012 **
9/8/2012 **
9/9/2012 **
9/10/2012 **
9/11/2012 0.69
9/12/2012 0.00
9/13/2012 0.00
9/14/2012 0.00
9/15/2012 0.00
9/16/2012 0.00
9/17/2012 0.00
9/18/2012 0.15
9/19/2012 0.64
9/20/2012 0.00
9/21/2012 0.00
9/22/2012 0.00
9/23/2012 0.31
9/24/2012 0.00
9/25/2012 0.00
9/26/2012 0.12
9/27/2012 0.00
9/28/2012 0.18
9/29/2012 0.00
9/30/2012 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/5/2011 7:00 AM 0.00 0.0 M M M
10/27/2011 7:00 AM 0.11 M M M M
10/28/2011 7:00 AM 0.14 M M M M
11/1/2011 7:00 AM 0.07 M M M M
11/21/2011 7:00 AM 0.22 M M M M
11/22/2011 8:00 AM 0.08 M M M M
11/23/2011 7:00 AM 1.24 M M M M
12/1/2011 7:00 AM 0.00 0.0 M M M
12/2/2011 7:00 AM 0.00 0.0 M M M
12/3/2011 7:00 AM 0.00 0.0 M M M
12/4/2011 7:00 AM 0.00 0.0 M M M
12/5/2011 7:00 AM 0.00 0.0 M M M
12/6/2011 7:00 AM 0.05 M M M M
12/7/2011 7:50 AM 0.94 M M M M
12/8/2011 7:00 AM 1.82 M M M M
12/28/2011 7:00 AM 0.71 M M M M
1/8/2012 7:00 AM 0.00 0.0 M M M
1/9/2012 7:00 AM 0.00 0.0 M M M
1/10/2012 7:00 AM 0.04 T M 0.0 M Precipitation fell as snow during the evening rush hour. (My commute was interesting!) By morning, it had melted.
1/11/2012 7:00 AM 0.00 0.0 M M M
1/12/2012 7:00 AM 0.00 0.0 M M M
1/13/2012 7:00 AM 0.00 0.0 M M M
1/14/2012 7:00 AM 0.00 0.0 M M M
1/15/2012 7:00 AM 0.00 0.0 M M M
1/16/2012 7:00 AM 0.00 0.0 M M M
1/17/2012 8:00 AM 0.11 M M M M
1/18/2012 7:00 AM 0.06 M M M M
4/9/2012 7:00 AM 0.00 0.0 M M M
4/19/2012 7:00 AM 0.16 M M M M
5/15/2012 7:56 AM 0.49 M M M M
5/21/2012 7:50 AM 0.14 M M M M
5/22/2012 7:00 AM 0.55 M M M M
5/23/2012 7:00 AM 0.02 M M M M
6/2/2012 7:00 AM 1.02 M M M M
6/3/2012 7:00 AM 0.00 0.0 M M M
6/4/2012 7:00 AM 0.02 M M M M
6/5/2012 7:00 AM 0.05 M M M M
6/6/2012 7:00 AM 0.00 0.0 M M M
6/7/2012 7:00 AM 0.00 0.0 M M M
6/8/2012 7:00 AM 0.20 M M M M
6/9/2012 7:00 AM 0.00 0.0 M M M
6/10/2012 7:00 AM 0.00 0.0 M M M
6/11/2012 7:00 AM 0.00 0.0 M M M
6/12/2012 7:45 AM 0.13 M M M M
6/13/2012 7:00 AM 0.24 M M M M
6/14/2012 7:00 AM 0.00 0.0 M M M
6/15/2012 7:00 AM 0.00 0.0 M M M
6/16/2012 7:00 AM 0.00 0.0 M M M
6/17/2012 7:00 AM 0.00 0.0 M M M
6/18/2012 7:00 AM 0.00 0.0 M M M
6/19/2012 7:00 AM 0.05 M M M M
7/11/2012 7:00 AM 0.01 M M M M
7/21/2012 8:45 AM 0.50 M M M M
8/9/2012 7:00 AM 0.00 0.0 M M M
8/10/2012 8:20 AM 0.06 M M M M
8/14/2012 7:00 AM 0.00 0.0 M M M
8/15/2012 7:00 AM 0.03 M M M M
8/16/2012 7:00 AM 0.00 0.0 M M M
8/21/2012 7:00 AM 0.16 M M M M
8/22/2012 7:00 AM 0.00 0.0 M M M
8/23/2012 7:00 AM 0.00 0.0 M M M
8/24/2012 7:00 AM 0.00 0.0 M M M
8/25/2012 7:00 AM 0.00 0.0 M M M
8/28/2012 7:30 AM 0.04 M M M M
9/6/2012 7:00 AM 0.88 M M M M
9/12/2012 7:00 AM 0.00 0.0 M M M
9/13/2012 7:00 AM 0.00 0.0 M M M
9/14/2012 7:00 AM 0.00 0.0 M M M
9/15/2012 7:00 AM 0.00 0.0 M M M
9/16/2012 7:00 AM 0.00 0.0 M M M
9/17/2012 7:00 AM 0.00 0.0 M M M
9/18/2012 7:00 AM 0.15 M M M M
9/19/2012 7:00 AM 0.64 M M M M
9/20/2012 7:00 AM 0.00 0.0 M M M
9/21/2012 7:00 AM 0.00 0.0 M M M
9/22/2012 7:00 AM 0.00 0.0 M M M
9/23/2012 7:00 AM 0.31 M M M M
9/24/2012 7:00 AM 0.00 0.0 M M M (edit: daily precip initially recorded as 0.31". changed to NA due to MDR suspicion. observer contacted. P.G.) (observer-confirmed 0.31" for 9/23 and no precip today. P.G.)
9/25/2012 7:00 AM 0.00 0.0 M M M
9/26/2012 7:00 AM 0.12 M M M M
9/27/2012 7:00 AM 0.00 0.0 M M M
9/28/2012 7:00 AM 0.18 M M M M
9/29/2012 7:00 AM 0.00 0.0 M M M
9/30/2012 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
2/25/2012 3/05/2012 12:00 AM 10 2.69 M M
4/28/2012 5/01/2012 7:50 AM 4 0.24 M M
5/24/2012 6/01/2012 12:00 AM 9 0.45 M M
6/20/2012 7/10/2012 12:00 AM 21 1.21 M M
7/12/2012 7/20/2012 12:00 AM 9 2.05 M M
7/21/2012 8/03/2012 7:00 AM 14 1.21 M M
8/4/2012 8/08/2012 12:00 AM 5 0.11 M M
8/11/2012 8/13/2012 6:20 AM 3 1.72 M M
8/17/2012 8/20/2012 7:00 AM 4 0.30 M M
8/26/2012 8/27/2012 12:00 AM 2 3.28 M M
8/29/2012 9/05/2012 7:30 PM 8 0.57 M M
9/7/2012 9/11/2012 7:00 AM 5 0.69 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