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 13 3.59 5.58 14 5.58 14 0.00 0 0 13 1 0.0 0 0
Nov 13 3.27 2.59 10 2.59 10 0.00 0 0 8 2 0.0 0 0
Dec 13 3.40 5.49 14 5.49 14 0.00 0 0 12 2 0.0 0 0
Jan 14 3.19 2.83 14 2.83 14 0.00 0 0 12 1 10.0 5 4
Feb 14 2.92 3.56 9 3.56 9 0.00 0 0 8 1 3.1 4 3
March 14 4.22 3.33 13 3.33 13 0.00 0 0 12 1 11.8 5 4
April 14 3.44 3.55 9 3.55 9 0.00 0 0 7 2 0.0 0 0
May 14 4.02 5.94 15 5.94 15 0.00 0 0 14 1 0.0 0 0
June 14 3.93 1.99 9 1.99 9 0.00 0 0 9 0 0.0 0 0
July 14 4.13 3.69 13 3.69 13 0.00 0 0 13 0 0.0 0 0
Aug 14 3.94 4.54 12 4.54 12 0.00 0 0 10 2 0.0 0 0
Sept 14 3.84 3.20 12 3.20 12 0.00 0 0 12 0 0.0 0 0
Water Year Totals: 43.89" 46.29" 144 days 46.29" 144 0.00" 0 days 0 130 days 13 days 24.9" 14 days 11 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
10/1/2013
10/2/2013
10/3/2013
10/4/2013
10/5/2013
10/6/2013
10/7/2013
10/8/2013 0.88
10/9/2013
10/10/2013 1.51
10/11/2013 2.09
10/12/2013 0.22
10/13/2013 0.56
10/14/2013 0.08
10/15/2013
10/16/2013 0.02
10/17/2013 0.01
10/18/2013 0.01
10/19/2013
10/20/2013 0.03
10/21/2013
10/22/2013
10/23/2013 0.03
10/24/2013 0.12
10/25/2013
10/26/2013
10/27/2013
10/28/2013
10/29/2013
10/30/2013 T
10/31/2013 0.02
11/1/2013
11/2/2013 0.01
11/3/2013
11/4/2013
11/5/2013
11/6/2013
11/7/2013 0.05
11/8/2013 0.04
11/9/2013
11/10/2013
11/11/2013
11/12/2013
11/13/2013 T
11/14/2013
11/15/2013
11/16/2013 0.63
11/17/2013 0.01
11/18/2013 0.25
11/19/2013
11/20/2013
11/21/2013
11/22/2013
11/23/2013 0.04
11/24/2013
11/25/2013
11/26/2013 T
11/27/2013 1.56
11/28/2013
11/29/2013
11/30/2013
12/1/2013
12/2/2013
12/3/2013
12/4/2013
12/5/2013 T
12/6/2013 0.02
12/7/2013 0.32
12/8/2013 0.01
12/9/2013 1.71
12/10/2013 0.11
12/11/2013 0.32
12/12/2013
12/13/2013
12/14/2013
12/15/2013 0.78
12/16/2013
12/17/2013
12/18/2013 0.41
12/19/2013
12/20/2013
12/21/2013
12/22/2013 T
12/23/2013 0.40
12/24/2013 0.24
12/25/2013
12/26/2013
12/27/2013
12/28/2013
12/29/2013 0.18
12/30/2013 0.99
12/31/2013
Day of YearDaily PrcpMultiday Prcp
1/1/2014
1/2/2014
1/3/2014 0.50
1/4/2014 0.00
1/5/2014
1/6/2014 0.34
1/7/2014 0.11
1/8/2014
1/9/2014
1/10/2014 0.02
1/11/2014 0.52
1/12/2014 0.37
1/13/2014
1/14/2014 0.05
1/15/2014 0.38
1/16/2014 0.02
1/17/2014 0.02
1/18/2014
1/19/2014
1/20/2014
1/21/2014
1/22/2014 0.32
1/23/2014
1/24/2014
1/25/2014
1/26/2014 T
1/27/2014
1/28/2014
1/29/2014 0.18
1/30/2014
1/31/2014
2/1/2014
2/2/2014
2/3/2014 0.30
2/4/2014 0.87
2/5/2014 0.22
2/6/2014 0.03
2/7/2014
2/8/2014
2/9/2014
2/10/2014
2/11/2014
2/12/2014
2/13/2014 1.25
2/14/2014 0.38
2/15/2014
2/16/2014
2/17/2014
2/18/2014 0.24
2/19/2014
2/20/2014
2/21/2014
2/22/2014 0.27
2/23/2014
2/24/2014
2/25/2014
2/26/2014 T
2/27/2014
2/28/2014
3/1/2014
3/2/2014
3/3/2014 0.35
3/4/2014 0.33
3/5/2014
3/6/2014
3/7/2014
3/8/2014 T
3/9/2014
3/10/2014
3/11/2014 0.01
3/12/2014
3/13/2014 0.03
3/14/2014
3/15/2014
3/16/2014
3/17/2014 0.76
3/18/2014 0.03
3/19/2014
3/20/2014 0.15
3/21/2014
3/22/2014
3/23/2014
3/24/2014 0.01
3/25/2014
3/26/2014 0.28
3/27/2014
3/28/2014
3/29/2014 0.41
3/30/2014 0.80
3/31/2014 0.17
Day of YearDaily PrcpMultiday Prcp
4/1/2014
4/2/2014
4/3/2014 T
4/4/2014 0.01
4/5/2014
4/6/2014
4/7/2014 0.02
4/8/2014 0.49
4/9/2014
4/10/2014
4/11/2014
4/12/2014
4/13/2014
4/14/2014
4/15/2014
4/16/2014 0.67
4/17/2014
4/18/2014
4/19/2014
4/20/2014
4/21/2014
4/22/2014
4/23/2014 T
4/24/2014
4/25/2014
4/26/2014 0.70
4/27/2014
4/28/2014
4/29/2014 0.18
4/30/2014 1.48
5/1/2014 0.37
5/2/2014 0.12
5/3/2014
5/4/2014
5/5/2014
5/6/2014 0.55
5/7/2014 0.01
5/8/2014
5/9/2014
5/10/2014 0.06
5/11/2014
5/12/2014
5/13/2014 0.03
5/14/2014 T
5/15/2014
5/16/2014 0.22
5/17/2014 3.43
5/18/2014
5/19/2014
5/20/2014
5/21/2014 0.01
5/22/2014 0.27
5/23/2014
5/24/2014
5/25/2014
5/26/2014
5/27/2014
5/28/2014 0.52
5/29/2014 0.16
5/30/2014 0.18
5/31/2014 0.01
6/1/2014
6/2/2014
6/3/2014
6/4/2014
6/5/2014 0.40
6/6/2014
6/7/2014
6/8/2014
6/9/2014
6/10/2014
6/11/2014 0.71
6/12/2014 0.12
6/13/2014 0.53
6/14/2014 0.02
6/15/2014
6/16/2014
6/17/2014
6/18/2014
6/19/2014
6/20/2014 0.13
6/21/2014 0.02
6/22/2014 0.03
6/23/2014 0.03
6/24/2014
6/25/2014
6/26/2014
6/27/2014
6/28/2014
6/29/2014
6/30/2014
Day of YearDaily PrcpMultiday Prcp
7/1/2014
7/2/2014
7/3/2014 0.04
7/4/2014 0.08
7/5/2014 0.02
7/6/2014
7/7/2014
7/8/2014
7/9/2014 0.07
7/10/2014 0.08
7/11/2014 2.26
7/12/2014
7/13/2014
7/14/2014 0.04
7/15/2014 0.01
7/16/2014 0.45
7/17/2014
7/18/2014
7/19/2014
7/20/2014
7/21/2014
7/22/2014
7/23/2014
7/24/2014 0.29
7/25/2014 0.20
7/26/2014
7/27/2014 0.12
7/28/2014 0.03
7/29/2014
7/30/2014
7/31/2014
8/1/2014
8/2/2014 1.66
8/3/2014 1.02
8/4/2014
8/5/2014
8/6/2014
8/7/2014 0.06
8/8/2014
8/9/2014
8/10/2014 T
8/11/2014
8/12/2014 0.01
8/13/2014 0.79
8/14/2014
8/15/2014
8/16/2014 0.26
8/17/2014
8/18/2014
8/19/2014
8/20/2014 0.13
8/21/2014 0.20
8/22/2014 0.18
8/23/2014 T
8/24/2014 0.23
8/25/2014
8/26/2014
8/27/2014
8/28/2014
8/29/2014
8/30/2014
8/31/2014
9/1/2014 0.08
9/2/2014 0.03
9/3/2014 0.08
9/4/2014
9/5/2014
9/6/2014 0.79
9/7/2014 1.11
9/8/2014
9/9/2014 0.16
9/10/2014 0.01
9/11/2014
9/12/2014 0.20
9/13/2014
9/14/2014 0.02
9/15/2014
9/16/2014
9/17/2014
9/18/2014
9/19/2014
9/20/2014
9/21/2014
9/22/2014
9/23/2014
9/24/2014
9/25/2014 0.64
9/26/2014 0.05
9/27/2014
9/28/2014
9/29/2014
9/30/2014 0.03



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/8/2013 7:00 AM 0.88 M M M M RA began approx. 1330; ended by 1830. Some periods of +RA; no thunder or lightning.
10/10/2013 7:50 AM 1.51 M M M M RA began 1100, 10/9. Continuing. Several periods of moderate ot heavy RA.
10/11/2013 7:55 AM 2.09 M M M M Essentially constant RA [some periods of moderate to heavy] from midnight to report time [0800].
10/12/2013 8:10 AM 0.22 M M M M Periods of rain most of yesterday and last night. 4.65" total since early afternoon Monday, 10/7.
10/13/2013 7:35 AM 0.56 M M M M Periods of light rain during the day. Light to moderate rain most of night; continuing at report time [0830].
10/14/2013 7:00 AM 0.08 M M M M Rain ended approx. 1200 on 10/13. None - so far - today.
10/16/2013 7:00 AM 0.02 M M M M -RA between approx. 1530 and 1630.
10/17/2013 7:45 AM 0.01 M M M M -RA started approx. 0500; continues intermittently at report time [0753].
10/18/2013 7:00 AM 0.01 M M M M -RA approx. 0500; off and on for about 2 hours.
10/20/2013 7:00 AM 0.03 M M M M Intermittent -RA off and on most of day, especially in evening.
10/23/2013 8:00 AM 0.03 M M M M -RA B. approx. 0300; RA continuing at report time [0855].
10/24/2013 8:00 AM 0.12 M M M M RA ended approx. 1130.
10/30/2013 7:00 AM T M M M M
10/31/2013 7:00 AM 0.02 M M M M -RA between approx. 0930 and 1130; T. before 0700 today.
11/2/2013 7:50 AM 0.01 M M M M
11/7/2013 7:05 AM 0.05 M M M M -RA continues at report time [0804].
11/8/2013 7:00 AM 0.04 M M M M -RA off and on most of morning; ended approx. 1200.
11/13/2013 7:00 AM T M M M M Sprinkles in the AM; no snow observed.
11/16/2013 7:00 AM 0.63 M M M M RA began after midnight; nothing at Obs. Time.
11/17/2013 7:00 AM 0.01 M M M M sprinkles off and on through the morning.
11/18/2013 7:25 AM 0.25 M M M M RA began after midnight; ended by Obs. Time.
11/23/2013 7:00 AM 0.04 M M M M
11/26/2013 7:40 AM T M M M M -RA began approx. 0730; continues at report time: 0855.
11/27/2013 7:20 AM 1.56 M M M M RA continuing at report time [0730].
12/5/2013 7:00 AM T M M M M Fog at Obs. time.
12/6/2013 7:30 AM 0.02 M M M M -RA from approx. 1330-1500.
12/7/2013 8:00 AM 0.32 M M M M Majority of RA after midnight.
12/8/2013 7:00 AM 0.01 M M M M Ice pellets with some snow falling at report time [0925]; began approx. 0730.
12/9/2013 7:45 AM 1.71 M M M M A few small areas of snow/ice. -RA/sleet continuing.
12/10/2013 7:30 AM 0.11 M M M M No RA at Obs. Time; -RA began at 0745 [12/10] and continues at report time [0920].
12/11/2013 7:00 AM 0.32 M M M M RA and mixed sleet: 0745-1300. -SN between 1400-1500; no accumulation.
12/15/2013 7:40 AM 0.78 M M M M RA began approx. 1430; ended about midnight.
12/18/2013 8:00 AM 0.41 M M M M RA began approx. 1900; -SN after midnight. SN on 1/3 of less of grassy areas.
12/22/2013 7:00 AM T M M M M
12/23/2013 7:00 AM 0.40 M M M M
12/24/2013 7:00 AM 0.24 M M M M RA and -RA most of day.
12/29/2013 8:05 AM 0.18 M M M M RA began after midnight; continuing at report time [0905].
12/30/2013 7:00 AM 0.99 M M M M RA ended by approx. 1500; event total: 1.17". Dec. total to date: 5.49"
1/3/2014 7:00 AM 0.50 1.8 0.10 1.8 0.10 RA began approx. 1700. Total RA approx. 0.4" before changing to SN.
1/4/2014 7:00 AM 0.00 0.0 M 1.5 M
1/6/2014 8:30 AM 0.34 M M M M RA began after midnight; ended approx. 0700
1/7/2014 7:00 AM 0.11 M M M M RA ended by approx. 1200; storm total: 0.45. Low temp this morning [1/7]: 7 F.
1/10/2014 8:00 AM 0.02 M M M M RA continuing at report time [0845].
1/11/2014 8:00 AM 0.52 M M M M DZ at report time [0810].
1/12/2014 7:00 AM 0.37 M M M M RA total, Fri-Sat: 0.91". Stopped about midnight.
1/14/2014 7:30 AM 0.05 M M M M -RA continues at report time [0800].
1/15/2014 7:15 AM 0.38 M M M M RA ended approx. 1530. Fog at Obs. Time
1/16/2014 7:15 AM 0.02 M M M M -SN at Obs. Time; continuing at report time [0745]
1/17/2014 7:00 AM 0.02 0.2 0.02 0.0 0.00 -SN ended approx. 0800 [1/16]; melted soon thereafter.
1/22/2014 8:00 AM 0.32 4.0 0.32 4.0 0.32 -SN began approx. 1345. Ended about midnight. Low temp. in AM: 7 F.
1/26/2014 7:00 AM T 0.5 T M M SN between 1145 and 1215.
1/29/2014 7:30 AM 0.18 3.5 0.18 3.5 0.18
2/3/2014 8:00 AM 0.30 M M M M Light to moderate RA began after midnight. Continues at report time [0900]
2/4/2014 7:00 AM 0.87 M M M M RA ended approx. 1530.
2/5/2014 7:10 AM 0.22 M M M M RA began soon after 2400. -RA/mist at Obs. Time.
2/6/2014 7:00 AM 0.03 M M M M
2/13/2014 7:20 AM 1.25 1.5 1.25 1.5 1.25 SN began approx. 1830. Became mixed sleet and snow sometime after midnight. Mostly slush at Obs. time.
2/14/2014 7:00 AM 0.38 1.0 0.38 1.0 0.38 SN/SL began about 1600. Thunder approx. 1610.
2/18/2014 8:00 AM 0.24 0.5 0.24 M M
2/22/2014 7:00 AM 0.27 M M M M +RA began about 1240. Heavy downpours for 3-4 minutes. TS at 1300. RA ended by 1430.
2/26/2014 7:00 AM T 0.1 T 0.1 T -SN started early; continuing at Obs. Time.
3/3/2014 7:30 AM 0.35 0.3 0.35 0.3 0.35 RA between 0100 and 0400; approx. SN/SL continuing at report time [0830]
3/4/2014 7:00 AM 0.33 3.0 0.33 3.0 0.33 SN ended approx. 1630. Total: 3.3" to 1630.
3/8/2014 7:00 AM T M M M M Very light RA in afternoon.
3/11/2014 7:00 AM 0.01 M M M M -RA around noon.
3/13/2014 7:00 AM 0.03 M M M M
3/17/2014 8:30 AM 0.76 6.0 0.76 6.0 0.76
3/18/2014 7:00 AM 0.03 0.5 0.03 M M -SN around mid-day.
3/20/2014 8:00 AM 0.15 M M M M
3/24/2014 7:00 AM 0.01 M M M M
3/26/2014 7:00 AM 0.28 2.0 0.28 2.0 0.28 SN from approx, 0730 to after dark, with break of around mid-day.
3/29/2014 7:20 AM 0.41 M M M M RA started soon after midnight. Continuing at Report Time [0755].
3/30/2014 7:00 AM 0.80 M M M M RA has continued off and on since early 3/29; continuing at report time [0845]. Total from yesterday's start to 0700: 1.21".
3/31/2014 7:00 AM 0.17 M M M M
4/3/2014 7:00 AM T M M M M
4/4/2014 7:00 AM 0.01 M M M M
4/7/2014 7:15 AM 0.02 M M M M -RA continuing at report time [0850].
4/8/2014 7:00 AM 0.49 M M M M
4/16/2014 7:00 AM 0.67 T M M M RA from approx. 0730 on 4/15 to after midnight on 4/16; trace of snow. Low temp: 31.
4/23/2014 7:00 AM T M M M M
4/26/2014 7:00 AM 0.70 M M M M RA began apporx. 1715; included TS; ended by 0000.
4/29/2014 6:35 AM 0.18 M M M M RA began approx. 1700; mist at Obs. time.
4/30/2014 7:30 AM 1.48 M M M M 0.13" between 0800 and 1650; periods of +RA from then to early AM.
5/1/2014 7:00 AM 0.37 M M M M SH between 0710 to 0740 [5/1].
5/2/2014 7:00 AM 0.12 M M M M
5/6/2014 7:00 AM 0.55 M M M M TS began just after 0100; ended by appox. 0145. RA ended about 0400.
5/7/2014 7:00 AM 0.01 M M M M
5/10/2014 7:00 AM 0.06 M M M M
5/13/2014 7:00 AM 0.03 M M M M
5/14/2014 7:20 AM T M M M M
5/16/2014 7:15 AM 0.22 M M M M RA began approx. 0300-0400 AM; continues at report time [0725].
5/17/2014 7:00 AM 3.43 M M M M Periods of heavy rain between 0800 and 0900. Total rain from 0715 to 0940: 3.38".
5/21/2014 7:00 AM 0.01 M M M M
5/22/2014 7:00 AM 0.27 M M M M TS about 2000 [0.12"]; addl RA after midnight. SH(s) between Obs. Time and Report Time [0805].
5/28/2014 7:00 AM 0.52 M M M M
5/29/2014 7:00 AM 0.16 M M M M RA after midnight to around 0230.
5/30/2014 7:05 AM 0.18 M M M M Drizzle at report time [0708].
5/31/2014 7:00 AM 0.01 M M M M Drizzle ended by approx. 1200.
6/5/2014 7:00 AM 0.40 M M M M RA between 2200 and 2300.
6/11/2014 7:05 AM 0.71 M M M M TS between 0615-0645; -RA continues at report time [0710].
6/12/2014 7:10 AM 0.12 M M M M RA after midnight.
6/13/2014 7:00 AM 0.53 M M M M Most RA ended by approx. 1630.
6/14/2014 7:00 AM 0.02 M M M M
6/20/2014 7:00 AM 0.13 M M M M TS between 1730 to 1830, approx.
6/21/2014 7:00 AM 0.02 M M M M RA after midnight.
6/22/2014 7:45 AM 0.03 M M M M
6/23/2014 7:00 AM 0.03 M M M M
7/3/2014 7:00 AM 0.04 M M M M TS passed by: 1700-1730.
7/4/2014 6:45 AM 0.08 M M M M -RA and breezes at Obs. Time.
7/5/2014 7:00 AM 0.02 M M M M
7/9/2014 7:00 AM 0.07 M M M M RA and TS began approx. 2150. Ended by midnight.
7/10/2014 7:00 AM 0.08 M M M M TS: 1800-1900.
7/11/2014 7:00 AM 2.26 M M M M +RA began about 2100; included some distant thunder and frequent heavy downpours; ended around midnight.
7/14/2014 7:00 AM 0.04 M M M M RA at about 1715.
7/15/2014 7:00 AM 0.01 M M M M Lots of thunder all around in early evening; very little RA.
7/16/2014 7:25 AM 0.45 M M M M RA began about 1650.
7/24/2014 7:05 AM 0.29 M M M M TS before midnight. -RA and RA off an on since.
7/25/2014 7:00 AM 0.20 M M M M
7/27/2014 7:15 AM 0.12 M M M M RA between 1300-1330, 7/26; Addl 0.05" early on 7/27. -RA at report time [0820].
7/28/2014 7:00 AM 0.03 M M M M
8/2/2014 7:30 AM 1.66 M M M M
8/3/2014 6:45 AM 1.02 M M M M -RA at Obs. Time.
8/7/2014 7:00 AM 0.06 M M M M SH in mid-afternoon.
8/10/2014 7:00 AM T M M M M Sprinkles about 1300
8/12/2014 7:00 AM 0.01 M M M M
8/13/2014 7:00 AM 0.79 M M M M RA with some thunder from approx. 1200 to 1530.
8/16/2014 8:00 AM 0.26 M M M M RA between approx. 0100-0230.
8/20/2014 7:00 AM 0.13 M M M M SH between 1040 and 1130.
8/21/2014 7:00 AM 0.20 M M M M RA after midnight.
8/22/2014 7:00 AM 0.18 M M M M RA after midnight.
8/23/2014 7:00 AM T M M M M
8/24/2014 7:00 AM 0.23 M M M M RA: 1630 to approx. 1800.
9/1/2014 7:45 AM 0.08 M M M M RA began approx. 0700; continuing [light] at report time [0830].
9/2/2014 7:30 AM 0.03 M M M M
9/3/2014 7:00 AM 0.08 M M M M TS about 0130.
9/6/2014 7:00 AM 0.79 M M M M RA and TS: 1705-1730.
9/7/2014 7:00 AM 1.11 M M M M Hvy TS and RA after midnight; ended approx. 0130-0200.
9/9/2014 8:00 AM 0.16 M M M M
9/10/2014 7:00 AM 0.01 M M M M
9/12/2014 7:00 AM 0.20 M M M M RA before midnight.
9/14/2014 7:00 AM 0.02 M M M M
9/25/2014 7:35 AM 0.64 M M M M RA started approx. 1300 on 24th; off an on since, occasionally moderate.
9/26/2014 7:00 AM 0.05 M M M M -RA, drizzle and mist most of day.
9/30/2014 8:10 AM 0.03 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