Station Overview Station Location
Station Number MD-SM-8 Latitude 38.219722
Station Name Park Hall 0.2 SW Longitude -76.441667
County St. Mary's Elevation (ft) 75



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 16 3.59 4.42 7 4.42 7 0.00 0 0 6 1 0.0 0 0
Nov 16 3.27 0.44 6 0.44 6 0.00 0 0 5 1 0.0 0 0
Dec 16 3.40 3.09 14 3.09 14 0.00 0 0 12 2 0.0 0 0
Jan 17 3.19 2.72 13 2.72 13 0.00 0 0 13 0 7.8 3 3
Feb 17 2.92 0.61 6 0.61 6 0.00 0 0 5 1 0.0 0 0
March 17 4.22 2.62 10 2.62 10 0.00 0 0 9 1 0.0 0 0
April 17 3.44 2.90 27 2.90 27 0.00 0 0 9 0 0.0 0 0
May 17 4.02 7.37 17 7.37 17 0.00 0 0 17 0 0.0 0 0
June 17 3.93 3.52 7 3.52 7 0.00 0 0 7 0 0.0 0 0
July 17 4.13 7.54 8 7.54 8 0.00 0 0 8 0 0.0 0 0
Aug 17 3.94 4.58 11 4.58 11 0.00 0 0 11 0 0.0 0 0
Sept 17 3.84 1.77 5 1.77 5 0.00 0 0 5 0 0.0 0 0
Water Year Totals: 43.89" 41.58" 131 days 41.58" 131 0.00" 0 days 0 107 days 6 days 7.8" 3 days 3 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
10/1/2016 1.19
10/2/2016 0.05
10/3/2016
10/4/2016
10/5/2016
10/6/2016 T
10/7/2016
10/8/2016 0.01
10/9/2016 2.81
10/10/2016
10/11/2016
10/12/2016
10/13/2016
10/14/2016
10/15/2016
10/16/2016
10/17/2016
10/18/2016
10/19/2016
10/20/2016
10/21/2016
10/22/2016 0.18
10/23/2016
10/24/2016
10/25/2016
10/26/2016
10/27/2016
10/28/2016 0.18
10/29/2016
10/30/2016
10/31/2016
11/1/2016
11/2/2016
11/3/2016
11/4/2016 0.19
11/5/2016
11/6/2016
11/7/2016
11/8/2016
11/9/2016 0.02
11/10/2016 0.09
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016
11/17/2016
11/18/2016
11/19/2016
11/20/2016
11/21/2016
11/22/2016
11/23/2016
11/24/2016 T
11/25/2016
11/26/2016
11/27/2016
11/28/2016
11/29/2016 0.05
11/30/2016 0.09
12/1/2016 0.12
12/2/2016
12/3/2016
12/4/2016
12/5/2016 0.27
12/6/2016 T
12/7/2016 1.45
12/8/2016
12/9/2016 0.07
12/10/2016
12/11/2016
12/12/2016 0.11
12/13/2016 0.18
12/14/2016
12/15/2016
12/16/2016
12/17/2016 0.01
12/18/2016 0.12
12/19/2016
12/20/2016
12/21/2016
12/22/2016
12/23/2016
12/24/2016 0.32
12/25/2016 0.20
12/26/2016
12/27/2016
12/28/2016 T
12/29/2016 0.23
12/30/2016 0.01
12/31/2016
Day of YearDaily PrcpMultiday Prcp
1/1/2017
1/2/2017
1/3/2017 0.75
1/4/2017 0.33
1/5/2017
1/6/2017
1/7/2017 0.33
1/8/2017 0.11
1/9/2017
1/10/2017
1/11/2017 0.07
1/12/2017
1/13/2017
1/14/2017 0.10
1/15/2017 0.21
1/16/2017
1/17/2017
1/18/2017 0.04
1/19/2017
1/20/2017
1/21/2017 0.02
1/22/2017 0.05
1/23/2017 0.07
1/24/2017 0.48
1/25/2017
1/26/2017
1/27/2017
1/28/2017
1/29/2017
1/30/2017 0.16
1/31/2017
2/1/2017
2/2/2017
2/3/2017
2/4/2017
2/5/2017
2/6/2017
2/7/2017
2/8/2017 T
2/9/2017 0.21
2/10/2017
2/11/2017
2/12/2017
2/13/2017 0.01
2/14/2017
2/15/2017 0.16
2/16/2017 0.05
2/17/2017
2/18/2017
2/19/2017
2/20/2017
2/21/2017
2/22/2017
2/23/2017
2/24/2017
2/25/2017
2/26/2017 0.18
2/27/2017
2/28/2017
3/1/2017 0.14
3/2/2017 0.03
3/3/2017
3/4/2017
3/5/2017
3/6/2017
3/7/2017
3/8/2017 0.05
3/9/2017
3/10/2017
3/11/2017 0.04
3/12/2017
3/13/2017
3/14/2017 1.56
3/15/2017
3/16/2017
3/17/2017
3/18/2017 0.01
3/19/2017 0.72
3/20/2017
3/21/2017
3/22/2017
3/23/2017
3/24/2017
3/25/2017
3/26/2017
3/27/2017 T
3/28/2017
3/29/2017 0.03
3/30/2017
3/31/2017 0.04
Day of YearDaily PrcpMultiday Prcp
4/1/2017 0.82
4/2/2017 0.00
4/3/2017 0.00
4/4/2017 0.00
4/5/2017 0.00
4/6/2017 0.00
4/7/2017 0.43
4/8/2017 0.00
4/9/2017 0.00
4/10/2017 0.00
4/11/2017 0.00
4/12/2017 0.00
4/13/2017 0.00
4/14/2017 0.00
4/15/2017 0.00
4/16/2017 0.00
4/17/2017 0.00
4/18/2017 0.00
4/19/2017 0.00
4/20/2017 0.00
4/21/2017 0.02
4/22/2017 0.37
4/23/2017 0.30
4/24/2017 0.04
4/25/2017 0.47
4/26/2017 0.37
4/27/2017
4/28/2017 0.08
4/29/2017
4/30/2017
5/1/2017
5/2/2017 0.06
5/3/2017
5/4/2017
5/5/2017 0.13
5/6/2017 1.26
5/7/2017
5/8/2017
5/9/2017
5/10/2017
5/11/2017 0.15
5/12/2017 2.07
5/13/2017 1.06
5/14/2017 0.03
5/15/2017
5/16/2017
5/17/2017
5/18/2017
5/19/2017
5/20/2017 0.12
5/21/2017
5/22/2017 0.47
5/23/2017 0.12
5/24/2017 0.53
5/25/2017 0.31
5/26/2017 0.15
5/27/2017
5/28/2017 0.01
5/29/2017 0.24
5/30/2017 0.05
5/31/2017 0.61
6/1/2017
6/2/2017
6/3/2017
6/4/2017
6/5/2017
6/6/2017 0.42
6/7/2017
6/8/2017
6/9/2017
6/10/2017
6/11/2017
6/12/2017
6/13/2017
6/14/2017
6/15/2017
6/16/2017
6/17/2017 0.17
6/18/2017 0.09
6/19/2017
6/20/2017 2.43
6/21/2017
6/22/2017
6/23/2017 0.11
6/24/2017 0.28
6/25/2017
6/26/2017
6/27/2017
6/28/2017 0.02
6/29/2017
6/30/2017
Day of YearDaily PrcpMultiday Prcp
7/1/2017
7/2/2017 0.25
7/3/2017
7/4/2017
7/5/2017
7/6/2017 2.52
7/7/2017 0.25
7/8/2017
7/9/2017
7/10/2017
7/11/2017
7/12/2017
7/13/2017
7/14/2017 0.73
7/15/2017 0.42
7/16/2017
7/17/2017
7/18/2017
7/19/2017
7/20/2017
7/21/2017
7/22/2017
7/23/2017 1.28
7/24/2017 0.03
7/25/2017
7/26/2017
7/27/2017
7/28/2017
7/29/2017 2.06
7/30/2017
7/31/2017
8/1/2017
8/2/2017
8/3/2017
8/4/2017
8/5/2017
8/6/2017
8/7/2017
8/8/2017 0.95
8/9/2017 0.02
8/10/2017
8/11/2017
8/12/2017 0.05
8/13/2017 0.53
8/14/2017
8/15/2017
8/16/2017 0.48
8/17/2017 0.65
8/18/2017 0.11
8/19/2017 0.83
8/20/2017
8/21/2017
8/22/2017 0.03
8/23/2017
8/24/2017
8/25/2017
8/26/2017
8/27/2017
8/28/2017
8/29/2017 0.40
8/30/2017 0.53
8/31/2017
9/1/2017
9/2/2017 0.23
9/3/2017 0.97
9/4/2017
9/5/2017
9/6/2017
9/7/2017 0.49
9/8/2017
9/9/2017
9/10/2017
9/11/2017
9/12/2017
9/13/2017 0.04
9/14/2017
9/15/2017
9/16/2017
9/17/2017
9/18/2017
9/19/2017
9/20/2017 0.04
9/21/2017
9/22/2017
9/23/2017
9/24/2017
9/25/2017
9/26/2017
9/27/2017
9/28/2017
9/29/2017
9/30/2017



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2016 9:45 AM 1.19 M M M M Periods of +RA between approx. 0800-0930; -RA at Obs. Time.
10/2/2016 9:30 AM 0.05 M M M M Short period of +RA approx. 1700-1730
10/6/2016 7:00 AM T M M M M Very -RA in early AM.
10/8/2016 8:40 AM 0.01 M M M M -RA continuing at Obs. Time.
10/9/2016 9:30 AM 2.81 M M M M RA essentially over at Obs. Time; gusty winds; RA and periods of +RA during most of previous day and overnight.
10/22/2016 8:30 AM 0.18 M M M M
10/28/2016 7:30 AM 0.18 M M M M SHs in mid-afternoon; short periods of moderate RA.
11/4/2016 8:30 AM 0.19 M M M M
11/9/2016 8:10 AM 0.02 M M M M
11/10/2016 8:00 AM 0.09 M M M M
11/24/2016 7:00 AM T M M M M
11/29/2016 8:30 AM 0.05 M M M M
11/30/2016 8:10 AM 0.09 M M M M
12/1/2016 8:00 AM 0.12 M M M M
12/5/2016 9:00 AM 0.27 M M M M
12/6/2016 7:45 AM T M M M M -RA began approx. 0740.
12/7/2016 7:30 AM 1.45 M M M M
12/9/2016 7:00 AM 0.07 M M M M
12/12/2016 7:30 AM 0.11 M M M M
12/13/2016 7:00 AM 0.18 M M M M
12/17/2016 10:00 AM 0.01 M M M M Temp around freezing; thin ice on some surfaces [car, steps]. Light precip. at report time [1030].
12/18/2016 9:00 AM 0.12 M M M M
12/24/2016 8:25 AM 0.32 M M M M -RA continuing at Obs. Time.
12/25/2016 7:00 AM 0.20 M M M M
12/28/2016 7:00 AM T M M M M
12/29/2016 8:25 AM 0.23 M M M M -RA at observation time.
12/30/2016 7:00 AM 0.01 M M M M
1/3/2017 7:50 AM 0.75 M M M M RA continuing at report time [0835].
1/4/2017 7:30 AM 0.33 M M M M
1/7/2017 10:05 AM 0.33 4.5 0.33 4.5 0.33 SN continuing at report time [1050]
1/8/2017 9:00 AM 0.11 2.5 0.11 7.0 0.43
1/11/2017 7:15 AM 0.07 M M M M
1/14/2017 8:25 AM 0.10 M M M M -RA continuing at report time; temp. above freezing; 34F.
1/15/2017 7:45 AM 0.21 M M M M
1/18/2017 7:00 AM 0.04 M M M M Fairly dense fog at report time [0840].
1/21/2017 8:00 AM 0.02 M M M M Drizzle.
1/22/2017 9:00 AM 0.05 M M M M
1/23/2017 9:00 AM 0.07 M M M M Rain and wind at Obs. and Report Times.
1/24/2017 8:15 AM 0.48 M M M M
1/30/2017 8:30 AM 0.16 0.8 0.03 0.8 0.03 0.13 RA in gauge; addl. 0.03" from melted snow(core).
2/8/2017 7:00 AM T M M M M
2/9/2017 9:00 AM 0.21 M M M M Gusty winds over night into early morning.
2/13/2017 7:00 AM 0.01 M M M M Winds with large gusts from late Sunday through early AM Monday.
2/15/2017 7:50 AM 0.16 M M M M -RA at Obs. Time.
2/16/2017 7:00 AM 0.05 M M M M
2/26/2017 7:00 AM 0.18 M M M M TS about 1625 included 1-2 minutes of 1/2" to 1" hail; covered approx. 50% of open ground. Short periods of +RA too.
3/1/2017 7:10 AM 0.14 M M M M
3/2/2017 7:30 AM 0.03 M M M M
3/8/2017 7:50 AM 0.05 M M M M
3/11/2017 7:00 AM 0.04 M M M M
3/14/2017 9:00 AM 1.56 M M M M Short period of light snow/flurries about 1730 yesterday. Plenty of wind now and overnight.
3/18/2017 9:00 AM 0.01 M M M M
3/19/2017 9:00 AM 0.72 M M M M Mix of rain, snow, sleet over night with light rain at Obs. Time; and mix just before.
3/27/2017 9:00 AM T M M M M
3/29/2017 7:00 AM 0.03 M M M M
3/31/2017 8:00 AM 0.04 M M M M
4/1/2017 7:00 AM 0.82 M M M M Rain ended before midnight. Periods of +RA throughout the day.
4/2/2017 7:00 AM 0.00 0.0 M M M
4/3/2017 7:00 AM 0.00 0.0 M M M
4/4/2017 7:00 AM 0.00 0.0 M M M
4/5/2017 7:00 AM 0.00 0.0 M M M
4/6/2017 7:00 AM 0.00 0.0 M M M
4/7/2017 7:00 AM 0.43 M M M M Showers with some thunder during most of day until mid afternoon; no severe.
4/8/2017 7:00 AM 0.00 0.0 M M M
4/9/2017 7:00 AM 0.00 0.0 M M M
4/10/2017 7:00 AM 0.00 0.0 M M M
4/11/2017 7:00 AM 0.00 0.0 M M M
4/12/2017 7:00 AM 0.00 0.0 M M M
4/13/2017 7:00 AM 0.00 0.0 M M M
4/14/2017 7:00 AM 0.00 0.0 M M M
4/15/2017 7:00 AM 0.00 0.0 M M M
4/16/2017 7:00 AM 0.00 0.0 M M M
4/17/2017 7:00 AM 0.00 0.0 M M M
4/18/2017 7:00 AM 0.00 0.0 M M M
4/19/2017 7:00 AM 0.00 0.0 M M M
4/20/2017 7:00 AM 0.00 0.0 M M M
4/21/2017 7:00 AM 0.02 M M M M
4/22/2017 7:30 AM 0.37 M M M M
4/23/2017 8:00 AM 0.30 M M M M
4/24/2017 7:20 AM 0.04 M M M M Mist/drizzle at Obs. Time.
4/25/2017 7:50 AM 0.47 M M M M
4/26/2017 7:00 AM 0.37 M M M M Total precip. since last Thurs: 1.57"
4/28/2017 7:00 AM 0.08 M M M M
5/2/2017 8:00 AM 0.06 M M M M
5/5/2017 7:50 AM 0.13 M M M M -RA at Obs. Time; breezy.
5/6/2017 8:30 AM 1.26 M M M M
5/11/2017 8:30 AM 0.15 M M M M RA continuing at Obs. Time.
5/12/2017 8:30 AM 2.07 M M M M
5/13/2017 8:00 AM 1.06 M M M M -RA at Obs. Time.
5/14/2017 7:00 AM 0.03 M M M M Mist off and on most of the afternoon.
5/20/2017 8:15 AM 0.12 M M M M
5/22/2017 7:55 AM 0.47 M M M M RA continuing at Obs. Time; periods of +RA [moderate].
5/23/2017 7:30 AM 0.12 M M M M
5/24/2017 7:35 AM 0.53 M M M M
5/25/2017 7:50 AM 0.31 M M M M
5/26/2017 7:00 AM 0.15 M M M M May rain total to date: 6.46"
5/28/2017 7:00 AM 0.01 M M M M
5/29/2017 9:00 AM 0.24 M M M M
5/30/2017 7:45 AM 0.05 M M M M Short shower about 0630.
5/31/2017 7:00 AM 0.61 M M M M TS during the night. Some heavy downpours.
6/6/2017 7:30 AM 0.42 M M M M
6/17/2017 7:10 AM 0.17 M M M M
6/18/2017 9:00 AM 0.09 M M M M
6/20/2017 8:00 AM 2.43 M M M M Periods of very heavy rain, winds, some thunder and lightning, after approx. 1530 through 1830. Rain lasted most of the evening.
6/23/2017 7:25 AM 0.11 M M M M RA began approx. 0630; some periods of moderate RA; continues at report time [0815].
6/24/2017 7:00 AM 0.28 M M M M
6/28/2017 7:00 AM 0.02 M M M M
7/2/2017 7:00 AM 0.25 M M M M
7/6/2017 10:00 AM 2.52 M M M M +RA between approx. 0830 to 0930. -RA continued at Obs. Time.
7/7/2017 8:00 AM 0.25 M M M M TS after midnight.
7/14/2017 7:00 AM 0.73 M M M M TS with periods of +RA, after midnight.
7/15/2017 8:00 AM 0.42 M M M M
7/23/2017 8:00 AM 1.28 M M M M Multiples TSs from between approx. 1900 to after midnight.
7/24/2017 8:00 AM 0.03 M M M M
7/29/2017 8:10 AM 2.06 M M M M Monthly total: 7.76"; July 2016 total was 6.38"
8/8/2017 8:15 AM 0.95 M M M M
8/9/2017 7:00 AM 0.02 M M M M
8/12/2017 8:15 AM 0.05 M M M M -RA at Obs. time and continuing at report time [0945].
8/13/2017 8:00 AM 0.53 M M M M
8/16/2017 7:40 AM 0.48 M M M M
8/17/2017 8:05 AM 0.65 M M M M Moderate to +RA at Obs. Time. -RA at report time [0857].
8/18/2017 7:00 AM 0.11 M M M M
8/19/2017 8:00 AM 0.83 M M M M
8/22/2017 8:00 AM 0.03 M M M M
8/29/2017 8:15 AM 0.40 M M M M RA continuing at Obs. Time.
8/30/2017 7:25 AM 0.53 M M M M Event total: 0.93"
9/2/2017 7:30 AM 0.23 M M M M -RA at Obs. Time.
9/3/2017 8:15 AM 0.97 M M M M
9/7/2017 7:30 AM 0.49 M M M M
9/13/2017 7:30 AM 0.04 M M M M
9/20/2017 7:15 AM 0.04 M M M M



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