Station Overview Station Location
Station Number MD-HW-28 Latitude 39.175834
Station Name Elkridge 2.6 SW Longitude -76.784987
County Howard Elevation (ft) 273



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 12 3.69 9.81 31 9.66 28 0.15 3 1 12 1 0.0 0 0
Nov 12 3.53 0.72 30 0.72 30 0.00 0 0 5 1 0.0 0 0
Dec 12 3.50 3.60 31 1.59 21 2.01 10 3 5 2 0.2 1 0
Jan 13 3.23 4.01 31 3.54 26 0.47 5 1 8 2 2.0 3 3
Feb 13 3.00 1.96 26 1.64 19 0.32 7 2 8 1 0.3 1 1
March 13 3.99 2.71 31 2.71 31 0.00 0 0 7 2 4.5 3 3
April 13 3.49 2.55 30 1.69 27 0.86 3 1 10 0 0.0 0 0
May 13 4.36 4.37 29 4.31 24 0.06 5 1 11 1 0.0 0 0
June 13 3.63 8.14 29 8.14 29 0.00 0 0 15 2 0.0 0 0
July 13 4.05 3.13 30 2.62 19 0.51 11 3 10 0 0.0 0 0
Aug 13 3.39 1.20 31 1.19 22 0.01 9 2 12 1 0.0 0 0
Sept 13 4.01 1.55 30 1.53 27 0.02 3 1 3 0 0.0 0 0
Water Year Totals: 43.87" 43.75" 359 days 39.34" 303 4.41" 56 days 15 106 days 13 days 7.0" 8 days 7 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
10/1/2012 0.05
10/2/2012 0.10
10/3/2012 0.65
10/4/2012 T
10/5/2012 0.01
10/6/2012 **
10/7/2012 **
10/8/2012 0.15
10/9/2012 0.08
10/10/2012 0.02
10/11/2012 0.00
10/12/2012 0.00
10/13/2012 0.00
10/14/2012 0.00
10/15/2012 0.00
10/16/2012 0.39
10/17/2012 0.00
10/18/2012 0.00
10/19/2012 0.30
10/20/2012 0.53
10/21/2012 0.00
10/22/2012 0.00
10/23/2012 0.00
10/24/2012 0.00
10/25/2012 0.00
10/26/2012 0.00
10/27/2012 0.00
10/28/2012 0.00
10/29/2012 1.23
10/30/2012 6.11
10/31/2012 0.19
11/1/2012 0.00
11/2/2012 T
11/3/2012 0.00
11/4/2012 0.00
11/5/2012 0.00
11/6/2012 0.00
11/7/2012 0.00
11/8/2012 0.02
11/9/2012 0.00
11/10/2012 0.00
11/11/2012 0.00
11/12/2012 0.00
11/13/2012 0.38
11/14/2012 0.16
11/15/2012 0.00
11/16/2012 0.00
11/17/2012 0.00
11/18/2012 0.00
11/19/2012 0.00
11/20/2012 0.00
11/21/2012 0.00
11/22/2012 0.00
11/23/2012 0.00
11/24/2012 0.00
11/25/2012 0.00
11/26/2012 0.00
11/27/2012 0.06
11/28/2012 0.10
11/29/2012 0.00
11/30/2012 0.00
12/1/2012 0.00
12/2/2012 T
12/3/2012 T
12/4/2012 0.00
12/5/2012 0.00
12/6/2012 0.00
12/7/2012 0.00
12/8/2012 0.03
12/9/2012 **
12/10/2012 0.29
12/11/2012 0.11
12/12/2012 0.00
12/13/2012 0.00
12/14/2012 0.00
12/15/2012 0.00
12/16/2012 **
12/17/2012 0.05
12/18/2012 0.15
12/19/2012 0.00
12/20/2012 0.00
12/21/2012 1.19
12/22/2012 **
12/23/2012 **
12/24/2012 **
12/25/2012 **
12/26/2012 **
12/27/2012 1.67
12/28/2012 0.00
12/29/2012 0.00
12/30/2012 0.11
12/31/2012 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2013 0.00
1/2/2013 0.00
1/3/2013 0.00
1/4/2013 0.00
1/5/2013 0.00
1/6/2013 0.01
1/7/2013 0.00
1/8/2013 0.00
1/9/2013 0.00
1/10/2013 T
1/11/2013 **
1/12/2013 **
1/13/2013 **
1/14/2013 **
1/15/2013 0.47
1/16/2013 0.88
1/17/2013 0.12
1/18/2013 T
1/19/2013 0.00
1/20/2013 0.00
1/21/2013 0.00
1/22/2013 0.00
1/23/2013 0.00
1/24/2013 0.09
1/25/2013 0.00
1/26/2013 0.08
1/27/2013 0.00
1/28/2013 0.15
1/29/2013 0.02
1/30/2013 0.00
1/31/2013 2.19
2/1/2013 0.01
2/2/2013 **
2/3/2013 0.04
2/4/2013 T
2/5/2013 0.00
2/6/2013 0.00
2/7/2013 0.00
2/8/2013 0.12
2/9/2013 0.13
2/10/2013 0.00
2/11/2013 0.39
2/12/2013 0.00
2/13/2013 0.00
2/14/2013 **
2/15/2013 **
2/16/2013 **
2/17/2013 **
2/18/2013 0.28
2/19/2013 0.00
2/20/2013 0.09
2/21/2013 0.00
2/22/2013 0.00
2/23/2013 0.06
2/24/2013
2/25/2013 0.00
2/26/2013
2/27/2013 0.82
2/28/2013 0.02
3/1/2013 0.00
3/2/2013 0.00
3/3/2013 T
3/4/2013 0.00
3/5/2013 0.00
3/6/2013 0.38
3/7/2013 0.43
3/8/2013 0.00
3/9/2013 0.00
3/10/2013 0.00
3/11/2013 0.00
3/12/2013 0.08
3/13/2013 0.75
3/14/2013 T
3/15/2013 0.00
3/16/2013 0.00
3/17/2013 0.00
3/18/2013 0.00
3/19/2013 0.44
3/20/2013 0.00
3/21/2013 0.00
3/22/2013 0.00
3/23/2013 0.00
3/24/2013 0.00
3/25/2013 0.26
3/26/2013 0.37
3/27/2013 0.00
3/28/2013 0.00
3/29/2013 0.00
3/30/2013 0.00
3/31/2013 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2013 0.03
4/2/2013 0.00
4/3/2013 0.00
4/4/2013 0.00
4/5/2013 0.18
4/6/2013 0.00
4/7/2013 0.00
4/8/2013 0.00
4/9/2013 0.00
4/10/2013 0.00
4/11/2013 0.00
4/12/2013 0.05
4/13/2013 0.83
4/14/2013 0.00
4/15/2013 0.03
4/16/2013 0.00
4/17/2013 0.00
4/18/2013 0.13
4/19/2013 0.04
4/20/2013 **
4/21/2013 **
4/22/2013 0.86
4/23/2013 0.00
4/24/2013 0.00
4/25/2013 0.02
4/26/2013 0.00
4/27/2013 0.00
4/28/2013 0.00
4/29/2013 0.06
4/30/2013 0.32
5/1/2013 0.20
5/2/2013 0.00
5/3/2013 0.00
5/4/2013 0.00
5/5/2013 0.00
5/6/2013 0.00
5/7/2013 0.03
5/8/2013 1.19
5/9/2013 0.27
5/10/2013 0.00
5/11/2013 0.67
5/12/2013 0.60
5/13/2013 0.00
5/14/2013 0.00
5/15/2013 T
5/16/2013 **
5/17/2013 **
5/18/2013 **
5/19/2013 **
5/20/2013 0.06
5/21/2013 0.00
5/22/2013 0.00
5/23/2013 0.02
5/24/2013 0.98
5/25/2013 0.02
5/26/2013 0.00
5/27/2013 0.00
5/28/2013 0.20
5/29/2013 0.13
5/30/2013
5/31/2013
6/1/2013 0.00
6/2/2013 0.00
6/3/2013 0.89
6/4/2013 0.23
6/5/2013 0.00
6/6/2013 0.00
6/7/2013 1.83
6/8/2013 0.65
6/9/2013 0.00
6/10/2013 0.46
6/11/2013 2.23
6/12/2013 0.00
6/13/2013 T
6/14/2013 1.14
6/15/2013 0.01
6/16/2013 0.00
6/17/2013 T
6/18/2013 0.00
6/19/2013 0.28
6/20/2013 0.01
6/21/2013 0.00
6/22/2013 0.00
6/23/2013 0.00
6/24/2013 0.09
6/25/2013 0.03
6/26/2013
6/27/2013 0.04
6/28/2013 0.21
6/29/2013 0.04
6/30/2013 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2013 0.84
7/2/2013 0.22
7/3/2013 0.13
7/4/2013 0.52
7/5/2013 0.00
7/6/2013 **
7/7/2013 **
7/8/2013 **
7/9/2013 0.16
7/10/2013 0.01
7/11/2013 0.07
7/12/2013 0.24
7/13/2013 0.27
7/14/2013 0.13
7/15/2013 0.00
7/16/2013 0.00
7/17/2013 0.00
7/18/2013 0.00
7/19/2013 **
7/20/2013 **
7/21/2013 **
7/22/2013 0.14
7/23/2013 0.19
7/24/2013 0.00
7/25/2013 0.00
7/26/2013 0.00
7/27/2013 **
7/28/2013 **
7/29/2013 0.21
7/30/2013 0.00
7/31/2013
8/1/2013 0.22
8/2/2013 0.07
8/3/2013 0.00
8/4/2013 0.05
8/5/2013 0.00
8/6/2013 0.12
8/7/2013 0.02
8/8/2013 0.33
8/9/2013 0.12
8/10/2013 **
8/11/2013 **
8/12/2013 0.00
8/13/2013 0.20
8/14/2013 0.01
8/15/2013 0.00
8/16/2013 0.00
8/17/2013 0.00
8/18/2013 0.02
8/19/2013 0.01
8/20/2013 0.00
8/21/2013 0.00
8/22/2013 0.02
8/23/2013 0.00
8/24/2013 **
8/25/2013 **
8/26/2013 0.01
8/27/2013 0.00
8/28/2013 T
8/29/2013 **
8/30/2013 **
8/31/2013 **
9/1/2013 **
9/2/2013 **
9/3/2013 0.02
9/4/2013 0.00
9/5/2013 0.00
9/6/2013 0.00
9/7/2013 0.00
9/8/2013 0.00
9/9/2013 0.00
9/10/2013 0.00
9/11/2013 0.00
9/12/2013 0.00
9/13/2013 0.41
9/14/2013 0.00
9/15/2013 0.00
9/16/2013 0.00
9/17/2013 0.04
9/18/2013 0.00
9/19/2013 0.00
9/20/2013 0.00
9/21/2013 0.00
9/22/2013 1.08
9/23/2013 0.00
9/24/2013 0.00
9/25/2013 0.00
9/26/2013 0.00
9/27/2013 0.00
9/28/2013 0.00
9/29/2013 0.00
9/30/2013 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2012 8:30 AM 0.05 M M M M
10/2/2012 8:20 AM 0.10 M M M M sprinkles last night, steady rain this morning. still raining at time of ob.
10/3/2012 6:00 AM 0.65 M M M M
10/4/2012 7:00 AM T M M M M
10/5/2012 7:00 AM 0.01 M M M M Occurred yesterday morning.
10/9/2012 8:30 AM 0.08 M M M M
10/10/2012 8:30 AM 0.02 M M M M fell overnight.
10/11/2012 7:00 AM 0.00 0.0 M M M
10/12/2012 8:30 AM 0.00 0.0 M M M
10/13/2012 7:00 AM 0.00 0.0 M M M
10/14/2012 7:00 AM 0.00 0.0 M M M
10/15/2012 7:00 AM 0.00 0.0 M M M
10/16/2012 7:00 AM 0.39 M M M M 0.2" fell from about noon - 3pm. Then line of storms came through with strong winds and heavy downpours from 5:00 - 5:20 pm. Additional light rain later on in the evening.
10/17/2012 7:00 AM 0.00 0.0 M M M
10/18/2012 8:00 AM 0.00 0.0 M M M
10/19/2012 9:00 AM 0.30 M M M M Raining this morning when I woke up. Had ended by the time I checked the gauge. Some thunder heard and lightning seen last night around 11pm-midnight with storms just to the west and northwest but had not started raining as of midnight.
10/20/2012 9:00 AM 0.53 M M M M Heaviest rains around 6:30pm. 0.25" in ~ 10 min.
10/21/2012 7:00 AM 0.00 0.0 M M M
10/22/2012 7:00 AM 0.00 0.0 M M M
10/23/2012 7:00 AM 0.00 0.0 M M M
10/24/2012 7:00 AM 0.00 0.0 M M M
10/25/2012 7:00 AM 0.00 0.0 M M M
10/26/2012 7:00 AM 0.00 0.0 M M M
10/27/2012 7:00 AM 0.00 0.0 M M M
10/28/2012 7:00 AM 0.00 0.0 M M M
10/29/2012 8:55 AM 1.23 M M M M Heavy rains picking up at time of ob. Auto rain gauge had 1.28" during same time period.
10/30/2012 9:15 AM 6.11 M M M M Still some light rain falling this morning. Storm total precipitation of 7.34". Automatic rain gauge has recorded storm total amount of 7.80" through same time but that may have received some extra rain that was bouncing off the front of the house since it faces NW. Low pressure of 28.50" or 965.12mb between 10:30pm and 11:15pm. Peak sustained wind of 21.0 mph and peak wind gust of 42.5 mph, both from the NW. Wind gust came around 7:15pm.
10/31/2012 9:30 AM 0.19 M M M M This finally brings storm total precipitation from Hurricane Sandy to 7.53".
11/1/2012 7:00 AM 0.00 0.0 M M M
11/2/2012 7:00 AM T M M M M Sprinkles during the midday/afternoon on 11/1.
11/3/2012 8:00 AM 0.00 0.0 M M M
11/4/2012 7:00 AM 0.00 0.0 M M M
11/5/2012 7:00 AM 0.00 0.0 M M M
11/6/2012 7:00 AM 0.00 0.0 M M M
11/7/2012 7:00 AM 0.00 0.0 M M M
11/8/2012 7:00 AM 0.02 M M M M
11/9/2012 8:00 AM 0.00 0.0 M M M
11/10/2012 7:00 AM 0.00 0.0 M M M
11/11/2012 7:00 AM 0.00 0.0 M M M
11/12/2012 7:00 AM 0.00 0.0 M M M
11/13/2012 6:40 AM 0.38 M M M M light rain at time of ob
11/14/2012 7:00 AM 0.16 M M M M from yesterday morning/midday time period
11/15/2012 7:00 AM 0.00 0.0 M M M
11/16/2012 7:00 AM 0.00 0.0 M M M
11/17/2012 7:00 AM 0.00 0.0 M M M
11/18/2012 7:00 AM 0.00 0.0 M M M
11/19/2012 7:00 AM 0.00 0.0 M M M
11/20/2012 7:00 AM 0.00 0.0 M M M
11/21/2012 7:00 AM 0.00 0.0 M M M
11/22/2012 7:00 AM 0.00 0.0 M M M
11/23/2012 7:00 AM 0.00 0.0 M M M
11/24/2012 7:00 AM 0.00 0.0 M M M
11/25/2012 7:00 AM 0.00 0.0 M M M
11/26/2012 7:00 AM 0.00 0.0 M M M
11/27/2012 9:00 AM 0.06 M M M M
11/28/2012 8:50 AM 0.10 M M M M Precip from yesterday morning to afternoon.
11/29/2012 7:00 AM 0.00 0.0 M M M
11/30/2012 7:00 AM 0.00 0.0 M M M
12/1/2012 7:00 AM 0.00 0.0 M M M
12/2/2012 7:00 AM T M M M M Rained sometime before sunrise as blacktop was damp.
12/3/2012 7:00 AM T M M M M Very light rain yesterday around 5pm.
12/4/2012 7:00 AM 0.00 0.0 M M M
12/5/2012 7:00 AM 0.00 0.0 M M M
12/6/2012 7:00 AM 0.00 0.0 M M M
12/7/2012 7:00 AM 0.00 0.0 M M M
12/8/2012 9:00 AM 0.03 M M M M 0.02" from yesterday morning and 0.01" prior to 9am this morning.
12/11/2012 7:00 AM 0.11 M M M M
12/12/2012 7:00 AM 0.00 0.0 M M M
12/13/2012 7:00 AM 0.00 0.0 M M M
12/14/2012 7:00 AM 0.00 0.0 M M M
12/15/2012 7:00 AM 0.00 0.0 M M M
12/18/2012 9:00 AM 0.15 M M M M
12/19/2012 9:00 AM 0.00 0.0 M M M
12/20/2012 9:00 AM 0.00 0.0 M M M
12/21/2012 8:00 AM 1.19 M M M M Strong winds overnight.
12/28/2012 8:30 AM 0.00 0.0 M M M
12/29/2012 8:00 AM 0.00 0.0 M M M
12/30/2012 7:00 AM 0.11 0.2 M 0.0 M Precip began sometime between 9-10am as a rain/snow mix. Finally went to all snow around 10:30am. Heaviest snow was between 10am-11:30am. Snow slowly tapered off through the rest of the morning and was generally done by 1pm. Light occasional snow showers continued until a little after 2pm.
12/31/2012 9:00 AM 0.00 0.0 M M M
1/1/2013 7:00 AM 0.00 0.0 M M M
1/2/2013 7:30 AM 0.00 0.0 M M M
1/3/2013 7:00 AM 0.00 0.0 M M M
1/4/2013 7:00 AM 0.00 0.0 M M M
1/5/2013 7:00 AM 0.00 0.0 M M M
1/6/2013 10:00 AM 0.01 0.0 M 0.0 M Snow showers around 11pm changed to light rain.
1/7/2013 6:00 AM 0.00 0.0 M M M
1/8/2013 7:00 AM 0.00 0.0 M M M
1/9/2013 7:00 AM 0.00 0.0 M M M
1/10/2013 9:00 AM T M M M M Light rain showers yesterday afternoon were enough to wet the ground. Trace amount in rain gauge.
1/16/2013 7:00 AM 0.88 M M M M
1/17/2013 7:00 AM 0.12 M M M M
1/18/2013 7:00 AM T 0.0 M 0.0 M light rain shower yesterday morning.
1/19/2013 9:00 AM 0.00 0.0 M M M
1/20/2013 9:00 AM 0.00 0.0 M M M
1/21/2013 7:00 AM 0.00 0.0 M M M
1/22/2013 7:00 AM 0.00 0.0 M M M
1/23/2013 7:00 AM 0.00 0.0 M M M
1/24/2013 7:30 AM 0.09 1.0 M 1.0 M Snow fell overnight sometime after 11pm. A few flurries still coming down at time of observation.
1/25/2013 7:00 AM 0.00 0.0 M M M
1/26/2013 7:00 AM 0.08 0.9 M 1.5 M Very dry and light weight snow fell yesterday afternoon and evening.
1/27/2013 7:00 AM 0.00 0.0 M M M
1/28/2013 10:00 AM 0.15 0.1 M 0.1 M Sleet and freezing rain overnight. Rain and freezing rain at time of observation. 0.1" of freezing rain accumulation.
1/29/2013 10:00 AM 0.02 M M T M Rain from yesterday morning. Spots of snow/ice left in the shade still.
1/30/2013 8:00 AM 0.00 0.0 M 0.0 M
1/31/2013 7:00 AM 2.19 M M 0.0 M Rainfall from about 4pm yesterday through early this morning. Very heavy rain and high winds around 1am last night. Max wind gust of 36mph just before 6am this morning.
2/1/2013 7:10 AM 0.01 0.3 M 0.3 M Ground covered by snow this morning. Still snowing at time of observation. Snow is more wet than the previous 2 events we have had.
2/4/2013 7:00 AM T T M T M Small graupel fell around 9:30pm leaving a trace amount that accumulated on the ground and was still there this morning. Snow showers earlier in the day did not accumulate on the ground.
2/5/2013 7:00 AM 0.00 0.0 M 0.0 M No Snow :(
2/6/2013 7:00 AM 0.00 0.0 M M M
2/7/2013 7:00 AM 0.00 0.0 M M M
2/8/2013 6:30 AM 0.12 M M M M Light rain falling.
2/9/2013 9:00 AM 0.13 0.0 M 0.0 M Precip fell as rain from pre-dawn yesterday until becoming scattered in the afternoon. Very windy conditions overnight as the nor'easter moved up the coast.
2/10/2013 7:00 AM 0.00 0.0 M 0.0 M
2/11/2013 9:00 AM 0.39 0.0 M 0.0 M
2/12/2013 7:00 AM 0.00 0.0 M M M
2/13/2013 7:00 AM 0.00 0.0 M M M
2/19/2013 7:00 AM 0.00 0.0 M M M
2/20/2013 9:00 AM 0.09 0.0 M 0.0 M Light rain during the day yesterday.
2/21/2013 9:00 AM 0.00 0.0 M M M
2/22/2013 7:00 AM 0.00 0.0 M M M
2/23/2013 7:00 AM 0.06 T M 0.0 M Had freezing rain/sleet yesterday during the midday and afternoon that accumulated on some surfaces. Then precip changed over to rain in the evening.
2/25/2013 8:00 AM 0.00 0.0 M 0.0 M
2/27/2013 8:30 AM 0.82 0.0 M 0.0 M Rainfall from midday yesterday to early this morning.
2/28/2013 9:00 AM 0.02 0.0 M 0.0 M
3/1/2013 7:00 AM 0.00 0.0 M 0.0 M
3/2/2013 7:00 AM 0.00 0.0 M 0.0 M
3/3/2013 7:00 AM T 0.0 M 0.0 M Snow flurries on and off through the day on Saturday and very early Sunday morning.
3/4/2013 7:00 AM 0.00 0.0 M 0.0 M
3/5/2013 9:00 AM 0.00 0.0 M 0.0 M
3/6/2013 7:00 AM 0.38 1.0 M 1.0 M Sidewalks and roads have a slushy mess on them. Just over 1" of wet snow covers the ground.
3/7/2013 7:00 AM 0.43 T M T M Snow changed to rain/snow mix yesterday morning not long after 7am. Throughout the day, precip changed back and forth between rain, wet snow, rain/snow mix, and even rain/ice pellet mix at one time. Very little if any accumulation took place after about 7am, even though there had been about 1" of slushy snow on the ground previously.
3/8/2013 7:00 AM 0.00 0.0 M M M
3/9/2013 7:00 AM 0.00 0.0 M M M
3/10/2013 7:00 AM 0.00 0.0 M M M
3/11/2013 7:00 AM 0.00 0.0 M 0.0 M
3/12/2013 6:30 AM 0.08 0.0 M 0.0 M Light rain falling at time of ob.
3/13/2013 6:30 AM 0.75 0.0 M 0.0 M Rain from yesterday morning and early afternoon.
3/14/2013 6:30 AM T 0.0 M 0.0 M Rain/snow/graupel mix fell for about 5-10 min around 1pm. No accumulation.
3/15/2013 7:00 AM 0.00 0.0 M M M
3/16/2013 7:00 AM 0.00 0.0 M M M
3/17/2013 7:00 AM 0.00 0.0 M M M
3/18/2013 7:00 AM 0.00 0.0 M M M
3/19/2013 7:00 AM 0.44 0.0 M 0.0 M Precip fell during the afternoon/evening yesterday and continued overnight.
3/20/2013 7:00 AM 0.00 0.0 M M M
3/21/2013 7:00 AM 0.00 0.0 M 0.0 M
3/22/2013 7:00 AM 0.00 0.0 M M M
3/23/2013 7:00 AM 0.00 0.0 M M M
3/24/2013 7:00 AM 0.00 0.0 M M M
3/25/2013 7:00 AM 0.26 2.1 0.31 2.1 0.31 Moderate snow falling at time of observation. Snow was fairly wet and heavy.
3/26/2013 7:00 AM 0.37 1.4 M 1.0 0.25 Storm total maximum snowfall was estimated to be ~3.5". 2.1" fell prior to 7am on March 25th with another 1.4" falling by 10am. After 10am, it continued to snow through 2pm at light-moderate intensities but did not appear to accumulate any more on non-grass surfaces. By midday, snowfall intensity could not keep up with the snow melt that was occurring due to rising temperatures/March sun. Snow mixed with and then changed to light rain around 2pm staying all rain until after 5pm. Snow began to mix back in with rain about 5:30pm but never went back to all snow before the precipitation ended. Remaining snow left on the ground this morning in shady areas was a thick crusty layer of icy snow. Where the sun had hit it, most of the snow had already melted or was melting this morning.
3/27/2013 7:00 AM 0.00 0.0 M M M
3/28/2013 8:00 AM 0.00 0.0 M 0.0 M
3/29/2013 7:00 AM 0.00 0.0 M M M
3/30/2013 7:00 AM 0.00 0.0 M M M
3/31/2013 7:00 AM 0.00 0.0 M M M
4/1/2013 8:00 AM 0.03 0.0 M 0.0 M Light rain yesterday late morning to afternoon.
4/2/2013 7:00 AM 0.00 0.0 M M M
4/3/2013 8:00 AM 0.00 0.0 M M M
4/4/2013 7:00 AM 0.00 0.0 M M M
4/5/2013 9:00 AM 0.18 M M M M Rain fell overnight starting around 11pm.
4/6/2013 7:00 AM 0.00 0.0 M M M
4/7/2013 7:00 AM 0.00 0.0 M M M
4/8/2013 8:00 AM 0.00 0.0 M M M
4/9/2013 7:00 AM 0.00 0.0 M M M
4/10/2013 7:00 AM 0.00 0.0 M M M
4/11/2013 7:00 AM 0.00 0.0 M M M
4/12/2013 6:45 AM 0.05 M M M M Rain showers this morning.
4/13/2013 7:00 AM 0.83 M M M M Two rounds of rainfall. 0.57" fell between 7am and about 3pm. The rest fell with redeveloping storms around 8pm.
4/14/2013 7:00 AM 0.00 0.0 M M M
4/15/2013 9:00 AM 0.03 M M M M Rain shower sometime before 8:30am.
4/16/2013 7:00 AM 0.00 0.0 M M M
4/17/2013 7:00 AM 0.00 0.0 M M M
4/18/2013 10:00 AM 0.13 M M M M Light-Moderate rain this morning.
4/19/2013 9:00 AM 0.04 M M M M Light rain yesterday morning and this morning.
4/23/2013 7:00 AM 0.00 0.0 M M M
4/24/2013 7:00 AM 0.00 0.0 M M M
4/25/2013 7:00 AM 0.02 M M M M Rain showers with the fropa last night.
4/26/2013 7:00 AM 0.00 0.0 M M M
4/27/2013 7:00 AM 0.00 0.0 M M M
4/28/2013 7:00 AM 0.00 0.0 M M M
4/29/2013 6:30 AM 0.06 M M M M Trace of rain yesterday afternoon though it was not quite enough to wet the gauge. Then 0.06" from the early morning rains.
4/30/2013 6:30 AM 0.32 M M M M Light rain for part of the day yesterday and then continuing overnight into this morning. Still light drizzle at time of ob.
5/1/2013 7:00 AM 0.20 M M M M
5/2/2013 7:00 AM 0.00 0.0 M M M
5/3/2013 7:00 AM 0.00 0.0 M M M
5/4/2013 7:00 AM 0.00 0.0 M M M
5/5/2013 7:00 AM 0.00 0.0 M M M
5/6/2013 7:00 AM 0.00 0.0 M M M
5/7/2013 6:30 AM 0.03 M M M M Light drizzle yesterday morning and sprinkles in the late afternoon/evening followed by additional light drizzle overnight.
5/8/2013 7:00 AM 1.19 M M M M Slow moving upper low lifting across the eastern US. 0.93" from 7am-6pm yesterday, much of it during the morning-midday. Then heavy rain showers on and off through the evening. Most of the rain had stopped by 11pm.
5/9/2013 7:00 AM 0.27 M M M M
5/10/2013 7:00 AM 0.00 0.0 M M M
5/11/2013 8:00 AM 0.67 M M M M Line of tstorms moved across MD last night. Very heavy rains around 9:30pm with additional tstorms on and off past 1am.
5/12/2013 7:00 AM 0.60 M M M M Heavy rain from tstorms and then lingering showers during the late afternoon-late evening hours. Rainbow seen as the sun came out with light rain still falling after the main line of storms passed through.
5/13/2013 7:00 AM 0.00 0.0 M M M
5/14/2013 7:00 AM 0.00 0.0 M M M
5/15/2013 6:15 AM T M M M M Light drizzle/rain showers last night.
5/21/2013 7:00 AM 0.00 0.0 M M M
5/22/2013 7:00 AM 0.00 0.0 M M M
5/23/2013 8:00 AM 0.02 M M M M Rain showers last night around 9-10pm.
5/24/2013 8:00 AM 0.98 M M M M Tstorms and heavy rains last night tapering off to moderate rain overnight.
5/25/2013 7:00 AM 0.02 M M M M
5/26/2013 7:00 AM 0.00 0.0 M M M
5/27/2013 7:00 AM 0.00 0.0 M M M
5/28/2013 10:00 AM 0.20 M M M M Light rain falling at time of ob.
5/29/2013 8:30 AM 0.13 M M M M 0.01" fell on the morning of the 28th in addition to previous precip. Other 0.12" fell during the late evening of the 28th.
6/1/2013 7:00 AM 0.00 0.0 M M M
6/2/2013 7:00 AM 0.00 0.0 M M M
6/3/2013 10:00 AM 0.89 M M M M ~0.35" through 11pm last night, and the rest overnight into this morning.
6/4/2013 8:00 AM 0.23 M M M M Fell late yesterday afternoon.
6/5/2013 7:00 AM 0.00 0.0 M M M
6/6/2013 7:00 AM 0.00 0.0 M M M
6/7/2013 10:00 AM 1.83 M M M M Rain started yesterday evening around 5:30pm. On and off light-moderate rain through the evening (and I presume the overnight) and light rains again this morning. Much higher humidity noticed upon walking outside this morning as Tropical Storm Andrea (first of 2013) is moving northeastward up the East Coast and should pass over southeast MD tonight.
6/8/2013 7:00 AM 0.65 M M M M Moderate rain all morning becoming light drizzle by midday. Some occasional moderate showers during the afternoon but generally getting lighter through the evening. 2-day storm total of 2.48" from rains from Tropical Storm Andrea.
6/9/2013 7:00 AM 0.00 0.0 M M M
6/10/2013 9:30 AM 0.46 M M M M Had rained overnight sometime. Light rain falling at time of ob.
6/11/2013 8:00 AM 2.23 M M M M Light to moderate rain for much of the day. Heavier downpour around 2pm. Then some partial clearing late in the afternoon/early evening. Strong thunderstorms then moved through the area between 6-10pm producing very heavy rainfall.
6/12/2013 7:00 AM 0.00 0.0 M M M
6/13/2013 7:00 AM T M M M M rain shower overnight
6/14/2013 7:00 AM 1.14 M M M M Rain fell at 3 different times. 0.10" in 5 minutes around 9am when a large bowing segment came through the Mid-Atlantic, then additional rain during the afternoon. Heaviest rain fell between 4pm-4:30pm when severe thunderstorms developed and moved across central MD. Possible tornado on the ground to the south/southwest of my location based on radar and local reports. Final bout of rain came as light showers this morning just before 7am. Still sprinkling at time of ob.
6/15/2013 8:00 AM 0.01 M M M M Light rain the previous morning.
6/16/2013 8:00 AM 0.00 0.0 M M M
6/17/2013 7:00 AM T M M M M Sprinkles on and off through the mid-late afternoon yesterday. We got missed by tstorms to the north and south later in the evening.
6/18/2013 7:00 AM 0.00 0.0 M M M
6/19/2013 6:30 AM 0.28 M M M M
6/20/2013 8:00 AM 0.01 M M M M
6/21/2013 7:00 AM 0.00 0.0 M M M
6/22/2013 7:00 AM 0.00 0.0 M M M
6/23/2013 7:00 AM 0.00 0.0 M M M
6/24/2013 7:00 AM 0.09 M M M M Rain showers yesterday morning.
6/25/2013 7:00 AM 0.03 M M M M Rainfall from weakening tstorm yesterday afternoon.
6/27/2013 8:00 AM 0.04 M M M M Tstorm/rain showers yesterday evening.
6/28/2013 7:00 AM 0.21 M M M M Two rounds of tstorms/rain showers yesterday. One in mid-afternoon and the other in the late evening around 9-10pm.
6/29/2013 7:00 AM 0.04 M M M M
6/30/2013 7:00 AM 0.00 0.0 M M M
7/1/2013 7:00 AM 0.84 M M M M Thunderstorms in the late morning and again in the afternoon.
7/2/2013 7:00 AM 0.22 M M M M Light-moderate rain in the morning, then heavier showers and tstorms in the afternoon/evening.
7/3/2013 9:00 AM 0.13 M M M M Moderate steady rain this morning and at time of observation. Some light rain also fell yesterday.
7/4/2013 7:00 AM 0.52 M M M M Moderate to locally heavy rains.
7/5/2013 7:00 AM 0.00 0.0 M M M Happy July 4th!
7/10/2013 7:00 AM 0.01 M M M M Light rain showers midday yesterday.
7/11/2013 10:00 AM 0.07 M M M M 0.02" from yesterday late evening and another 0.05" this morning. Not raining at the time of ob but appeared to have rained in the last 1-2 hours.
7/12/2013 6:30 AM 0.24 M M M M Light-moderate rainfall this morning.
7/13/2013 10:00 AM 0.27 M M M M Light-moderate rain for most of the morning/midday period becoming more scattered showers by late afternoon.
7/14/2013 7:00 AM 0.13 M M M M Rain from a thunderstorm that moved south to north across central MD yesterday evening.
7/15/2013 7:00 AM 0.00 0.0 M M M
7/16/2013 7:00 AM 0.00 0.0 M M M
7/17/2013 7:00 AM 0.00 0.0 M M M
7/18/2013 7:00 AM 0.00 0.0 M M M
7/23/2013 10:00 AM 0.19 M M M M 0.14" from thunderstorms last night prior to midnight. Additional 0.05" overnight or this morning.
7/24/2013 7:00 AM 0.00 0.0 M M M
7/25/2013 7:00 AM 0.00 0.0 M M M
7/26/2013 7:00 AM 0.00 0.0 M M M
7/30/2013 7:00 AM 0.00 0.0 M M M
8/1/2013 7:00 AM 0.22 M M M M Rain overnight. Still a very light drizzle at time of observation.
8/2/2013 7:00 AM 0.07 M M M M Additional rain from yesterday morning
8/3/2013 7:00 AM 0.00 0.0 M M M
8/4/2013 7:00 AM 0.05 M M M M Rain from previous morning.
8/5/2013 7:00 AM 0.00 0.0 M M M
8/6/2013 9:15 AM 0.12 M M M M Light rain falling this morning/at time of ob.
8/7/2013 7:00 AM 0.02 M M M M Rain from previous day.
8/8/2013 7:00 AM 0.33 M M M M Moderate-locally heavy rains last night.
8/9/2013 8:00 AM 0.12 M M M M Rain from yesterday midday.
8/13/2013 10:30 AM 0.20 M M M M Rain this morning at some point between 7am and 10am.
8/14/2013 7:00 AM 0.01 M M M M Few minutes of light rain from the northern edge of a tstorm complex that moved across DC last night.
8/15/2013 7:00 AM 0.00 0.0 M M M
8/16/2013 7:00 AM 0.00 0.0 M M M
8/17/2013 7:00 AM 0.00 0.0 M M M
8/18/2013 9:30 AM 0.02 M M M M Light rain fell this morning.
8/19/2013 5:30 AM 0.01 M M M M From yesterday morning. Light rain fell around 10am.
8/20/2013 7:00 AM 0.00 0.0 M M M
8/21/2013 7:00 AM 0.00 0.0 M M M
8/22/2013 7:00 AM 0.02 M M M M Rain shower last night.
8/23/2013 7:00 AM 0.00 0.0 M M M
8/27/2013 7:00 AM 0.00 0.0 M M M
8/28/2013 8:00 AM T M M M M Sprinkling at time of ob.
9/4/2013 6:30 AM 0.00 0.0 M M M
9/5/2013 8:00 AM 0.00 0.0 M M M
9/6/2013 7:00 AM 0.00 0.0 M M M
9/7/2013 7:00 AM 0.00 0.0 M M M Still no rain :(
9/8/2013 7:00 AM 0.00 0.0 M M M
9/9/2013 7:00 AM 0.00 0.0 M M M
9/10/2013 7:00 AM 0.00 0.0 M M M
9/11/2013 7:00 AM 0.00 0.0 M M M
9/12/2013 7:00 AM 0.00 0.0 M M M
9/13/2013 8:00 AM 0.41 M M M M Frontal boundary passage gave us our first rains of September. Badly needed as the grass was very brown and even small trees were starting to wilt.
9/14/2013 7:00 AM 0.00 0.0 M M M
9/15/2013 7:00 AM 0.00 0.0 M M M
9/16/2013 7:00 AM 0.00 0.0 M M M
9/17/2013 7:00 AM 0.04 M M M M Light rain fell Monday morning 9/16.
9/18/2013 7:00 AM 0.00 0.0 M M M
9/19/2013 7:00 AM 0.00 0.0 M M M
9/20/2013 7:00 AM 0.00 0.0 M M M
9/21/2013 7:00 AM 0.00 0.0 M M M
9/22/2013 7:00 AM 1.08 M M M M Frontal boundary moved through the area bringing several lines of moderate to heavy rain.
9/23/2013 7:00 AM 0.00 0.0 M M M
9/24/2013 7:00 AM 0.00 0.0 M M M
9/25/2013 7:00 AM 0.00 0.0 M M M
9/26/2013 7:00 AM 0.00 0.0 M M M
9/27/2013 7:00 AM 0.00 0.0 M M M
9/28/2013 7:00 AM 0.00 0.0 M M M
9/29/2013 7:00 AM 0.00 0.0 M M M
9/30/2013 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
10/6/2012 10/08/2012 8:30 AM 3 0.15 M M
12/9/2012 12/10/2012 9:00 AM 2 0.29 0.0 M Saturday morning - Monday morning
12/16/2012 12/17/2012 7:00 AM 2 0.05 M M Possibly a Trace overnight Saturday into Sunday morning but most of this rain fell on Sunday. Had another 0.01" over night Sunday into Monday morning.
12/22/2012 12/27/2012 6:45 AM 6 1.67 0.0 M Reports from neighbors indicated we had a rain snow mixture on 12/24 that may have accumulated a few inches of slush that then froze for a day or two. Additional snow/sleet during morning of 12/26. This changed to all rain by midday and with warming temperatures (up to 47F by 9pm, all of the snow/slush mix that was on the ground when I got home melted rather quickly.
1/11/2013 1/15/2013 8:30 AM 5 0.47 0.0 M Light rain at time of observation.
2/2/2013 2/03/2013 3:00 PM 2 0.04 T M Believe this precipitation occurred entirely on Saturday from late afternoon to midnight as snow bands crossed the region.
2/14/2013 2/18/2013 9:00 AM 5 0.28 0.0 M Out of town from Feb. 13th - Feb 18th. I believe we had a inch of snow accumulation on the 14th while I was away and possibly some other precip.
4/20/2013 4/22/2013 7:00 AM 3 0.86 M M All of this precip fell on Friday April 19th during the late afternoon/evening with passage of the frontal boundary.
5/16/2013 5/20/2013 6:30 AM 5 0.06 0.0 0.00 Rain from Saturday/early Sunday while away.
7/6/2013 7/09/2013 8:00 AM 4 0.16 M M Believe the only day we had rain here was on Sunday late afternoon/evening.
7/19/2013 7/22/2013 8:00 AM 4 0.14 M M Rain believed to have fallen Saturday evening after 9pm.
7/27/2013 7/29/2013 8:00 AM 3 0.21 M M Tstorms on Saturday 7/27 during late afternoon/evening.
8/10/2013 8/12/2013 7:00 AM 3 0.00 M M Apparently no rain while I was away for the weekend. Ground is getting very dry.
8/24/2013 8/26/2013 8:00 AM 3 0.01 M M Light rain on Friday morning around 10:30 am. No precip around the region on Saturday and Sunday.
8/29/2013 9/03/2013 11:30 AM 6 0.02 M M Very little rain while away on vacation.



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