Station Overview Station Location
Station Number MD-AA-63 Latitude 39.1234
Station Name Severn 1.0 SSE Longitude -76.6818
County Anne Arundel Elevation (ft)



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 15 3.63 0.79 16 0.76 6 0.03 10 1 2 0 0.0 0 0
Nov 15 3.43 2.39 21 2.39 21 0.00 0 0 9 0 0.0 0 0
Dec 15 3.43 5.00 25 5.00 25 0.00 0 0 12 2 0.0 0 0
Jan 16 3.18 1.05 18 1.05 18 0.00 0 0 4 2 28.5 3 6
Feb 16 2.93 4.26 23 3.16 18 1.10 5 2 9 2 0.7 1 4
March 16 3.94 1.79 16 1.79 16 0.00 0 0 5 3 2.1 1 1
April 16 3.40 0.88 24 0.78 20 0.10 4 1 9 0 0.0 0 0
May 16 4.27 6.64 27 6.64 27 0.00 0 0 19 2 0.0 0 0
June 16 3.58 2.58 30 1.45 20 1.13 10 1 7 0 0.0 0 0
July 16 4.07 8.03 26 7.78 24 0.25 2 1 13 1 0.0 0 0
Aug 16 3.39 4.87 14 1.71 9 3.16 5 1 4 1 0.0 0 0
Sept 16 4.02 4.83 13 4.83 13 0.00 0 0 8 0 0.0 0 0
Water Year Totals: 43.27" 43.11" 253 days 37.34" 217 5.77" 36 days 7 101 days 13 days 31.3" 5 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
10/1/2015
10/2/2015
10/3/2015
10/4/2015
10/5/2015
10/6/2015
10/7/2015
10/8/2015
10/9/2015
10/10/2015
10/11/2015
10/12/2015
10/13/2015
10/14/2015
10/15/2015
10/16/2015 0.00
10/17/2015 **
10/18/2015 **
10/19/2015 **
10/20/2015 **
10/21/2015 **
10/22/2015 **
10/23/2015 **
10/24/2015 **
10/25/2015 **
10/26/2015 0.03
10/27/2015 0.00
10/28/2015 0.03
10/29/2015 0.73
10/30/2015 0.00
10/31/2015 0.00
11/1/2015 0.00
11/2/2015 0.02
11/3/2015 0.00
11/4/2015 0.00
11/5/2015 0.12
11/6/2015 0.01
11/7/2015 0.00
11/8/2015 0.12
11/9/2015 0.00
11/10/2015 0.81
11/11/2015 0.26
11/12/2015 0.00
11/13/2015 0.00
11/14/2015 0.00
11/15/2015 0.00
11/16/2015
11/17/2015
11/18/2015 0.00
11/19/2015 0.02
11/20/2015 0.69
11/21/2015 0.00
11/22/2015 0.00
11/23/2015
11/24/2015
11/25/2015
11/26/2015
11/27/2015
11/28/2015
11/29/2015
11/30/2015 0.34
12/1/2015
12/2/2015 0.69
12/3/2015
12/4/2015
12/5/2015 0.00
12/6/2015
12/7/2015 0.00
12/8/2015 0.00
12/9/2015
12/10/2015
12/11/2015 0.00
12/12/2015 0.00
12/13/2015 0.00
12/14/2015 0.00
12/15/2015 0.14
12/16/2015 0.00
12/17/2015 0.00
12/18/2015 0.57
12/19/2015 0.01
12/20/2015 0.00
12/21/2015 0.00
12/22/2015 0.06
12/23/2015 0.07
12/24/2015 1.88
12/25/2015 T
12/26/2015 0.73
12/27/2015 0.08
12/28/2015 0.03
12/29/2015 0.71
12/30/2015 T
12/31/2015 0.03
Day of YearDaily PrcpMultiday Prcp
1/1/2016 0.00
1/2/2016 0.00
1/3/2016 0.00
1/4/2016 0.00
1/5/2016 0.00
1/6/2016 0.00
1/7/2016 0.00
1/8/2016 0.01
1/9/2016 0.01
1/10/2016 1.01
1/11/2016
1/12/2016
1/13/2016 T
1/14/2016 0.00
1/15/2016
1/16/2016
1/17/2016
1/18/2016
1/19/2016 0.00
1/20/2016 0.00
1/21/2016 0.02
1/22/2016
1/23/2016 M
1/24/2016 M
1/25/2016
1/26/2016
1/27/2016
1/28/2016
1/29/2016 0.00
1/30/2016 T
1/31/2016 0.00
2/1/2016 0.00
2/2/2016 0.20
2/3/2016 T
2/4/2016 0.62
2/5/2016 0.10
2/6/2016 0.05
2/7/2016 0.00
2/8/2016 0.00
2/9/2016 0.12
2/10/2016
2/11/2016 0.00
2/12/2016 **
2/13/2016 **
2/14/2016 T
2/15/2016 0.06
2/16/2016 **
2/17/2016 1.10
2/18/2016 0.00
2/19/2016 0.00
2/20/2016 0.00
2/21/2016
2/22/2016 0.06
2/23/2016 0.13
2/24/2016
2/25/2016 1.82
2/26/2016 T
2/27/2016
2/28/2016
2/29/2016
3/1/2016 0.00
3/2/2016 0.00
3/3/2016 0.00
3/4/2016 0.23
3/5/2016 T
3/6/2016 T
3/7/2016
3/8/2016
3/9/2016
3/10/2016
3/11/2016
3/12/2016
3/13/2016 T
3/14/2016 1.10
3/15/2016
3/16/2016
3/17/2016
3/18/2016 0.00
3/19/2016
3/20/2016 0.24
3/21/2016
3/22/2016
3/23/2016 0.00
3/24/2016 0.00
3/25/2016
3/26/2016
3/27/2016
3/28/2016 0.14
3/29/2016 0.08
3/30/2016 0.00
3/31/2016 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2016
4/2/2016
4/3/2016
4/4/2016
4/5/2016 0.15
4/6/2016 0.00
4/7/2016 0.03
4/8/2016
4/9/2016 0.05
4/10/2016 0.19
4/11/2016
4/12/2016 0.02
4/13/2016 0.05
4/14/2016 0.00
4/15/2016 0.00
4/16/2016 0.00
4/17/2016 0.00
4/18/2016 0.00
4/19/2016 0.00
4/20/2016 0.00
4/21/2016 0.00
4/22/2016 **
4/23/2016 **
4/24/2016 **
4/25/2016 0.10
4/26/2016 0.00
4/27/2016 0.00
4/28/2016 0.03
4/29/2016 0.24
4/30/2016 0.02
5/1/2016 0.30
5/2/2016 0.23
5/3/2016 1.68
5/4/2016 0.16
5/5/2016 0.03
5/6/2016 0.13
5/7/2016 1.29
5/8/2016 0.03
5/9/2016 0.00
5/10/2016 0.05
5/11/2016 0.46
5/12/2016 0.23
5/13/2016 0.01
5/14/2016 0.22
5/15/2016 0.17
5/16/2016 0.00
5/17/2016 T
5/18/2016 0.31
5/19/2016 T
5/20/2016 0.00
5/21/2016 0.01
5/22/2016 0.55
5/23/2016 0.32
5/24/2016 0.46
5/25/2016 0.00
5/26/2016 0.00
5/27/2016 0.00
5/28/2016
5/29/2016
5/30/2016
5/31/2016
6/1/2016 0.00
6/2/2016 0.00
6/3/2016 0.00
6/4/2016 0.00
6/5/2016 0.04
6/6/2016 0.08
6/7/2016 0.00
6/8/2016 0.00
6/9/2016 0.00
6/10/2016 0.00
6/11/2016 0.00
6/12/2016 0.00
6/13/2016 0.00
6/14/2016 0.00
6/15/2016 0.02
6/16/2016 0.13
6/17/2016 0.65
6/18/2016 **
6/19/2016 **
6/20/2016 **
6/21/2016 **
6/22/2016 **
6/23/2016 **
6/24/2016 **
6/25/2016 **
6/26/2016 **
6/27/2016 1.13
6/28/2016 0.01
6/29/2016 0.52
6/30/2016 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2016 0.00
7/2/2016 0.02
7/3/2016 T
7/4/2016 0.02
7/5/2016 1.51
7/6/2016 0.10
7/7/2016 0.00
7/8/2016 0.00
7/9/2016 0.21
7/10/2016 0.00
7/11/2016 0.00
7/12/2016 0.00
7/13/2016 **
7/14/2016 0.25
7/15/2016 0.00
7/16/2016 0.00
7/17/2016 2.28
7/18/2016
7/19/2016 0.73
7/20/2016
7/21/2016
7/22/2016
7/23/2016
7/24/2016 0.15
7/25/2016 0.18
7/26/2016 0.04
7/27/2016 0.00
7/28/2016 0.00
7/29/2016 1.33
7/30/2016 0.01
7/31/2016 1.20
8/1/2016 0.01
8/2/2016 T
8/3/2016
8/4/2016
8/5/2016
8/6/2016
8/7/2016
8/8/2016
8/9/2016 0.00
8/10/2016 0.00
8/11/2016
8/12/2016
8/13/2016 0.21
8/14/2016
8/15/2016 0.35
8/16/2016 **
8/17/2016 **
8/18/2016 **
8/19/2016 **
8/20/2016 3.16
8/21/2016 0.00
8/22/2016 1.14
8/23/2016
8/24/2016
8/25/2016
8/26/2016
8/27/2016
8/28/2016 0.00
8/29/2016
8/30/2016
8/31/2016
9/1/2016 0.01
9/2/2016 0.12
9/3/2016
9/4/2016
9/5/2016
9/6/2016 0.00
9/7/2016
9/8/2016
9/9/2016 0.00
9/10/2016
9/11/2016
9/12/2016
9/13/2016
9/14/2016
9/15/2016
9/16/2016
9/17/2016
9/18/2016
9/19/2016 0.50
9/20/2016 0.26
9/21/2016
9/22/2016 0.00
9/23/2016
9/24/2016 0.00
9/25/2016
9/26/2016 0.00
9/27/2016 0.45
9/28/2016 0.01
9/29/2016 1.80
9/30/2016 1.68



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/16/2015 7:00 AM 0.00 0.0 M M M
10/27/2015 7:00 AM 0.00 0.0 M M M
10/28/2015 6:30 AM 0.03 M M M M Light rain this morning.
10/29/2015 6:00 AM 0.73 M M M M Steady rain from yesterday morning through much of the day and evening.
10/30/2015 7:00 AM 0.00 0.0 M M M
10/31/2015 7:00 AM 0.00 0.0 M M M
11/1/2015 7:00 AM 0.00 0.0 M M M
11/2/2015 8:00 AM 0.02 M M M M Light drizzle yesterday morning.
11/3/2015 7:00 AM 0.00 0.0 M M M
11/4/2015 8:00 AM 0.00 0.0 M M M
11/5/2015 8:30 AM 0.12 M M M M Periods of drizzle and rain showers the previous night and this morning.
11/6/2015 8:00 AM 0.01 M M M M Remant light drizzle from yesterday
11/7/2015 7:00 AM 0.00 0.0 M M M
11/8/2015 8:30 AM 0.12 M M M M Rain dyuring the day yesterday.
11/9/2015 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/10/2015 8:00 AM 0.81 M M M M Steady light rain most of the day becoming heavier towards evening. Heavy rains from late evening into overnight.
11/11/2015 7:30 AM 0.26 M M M M Lingering light rain and drizzle for most of the day yesterday.
11/12/2015 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/13/2015 7:00 AM 0.00 0.0 M M M
11/14/2015 7:00 AM 0.00 0.0 M M M
11/15/2015 8:00 AM 0.00 0.0 M M M
11/18/2015 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/19/2015 8:00 AM 0.02 M M M M Light rain showers overnight
11/20/2015 8:00 AM 0.69 M M M M Lots of rain
11/21/2015 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/22/2015 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/30/2015 8:00 AM 0.34 M M M M Rain and drizzle
12/2/2015 8:00 AM 0.69 M M M M Ongoing cloudiness and rain. Light drizzle became heavier with mod-hvy rain during the morning yesterday.
12/5/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/7/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/8/2015 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/11/2015 7:00 AM 0.00 0.0 M M M
12/12/2015 7:00 AM 0.00 0.0 M M M
12/13/2015 7:00 AM 0.00 0.0 M M M
12/14/2015 7:00 AM 0.00 0.0 M M M
12/15/2015 8:00 AM 0.14 M M M M Light- mod rain late in the afternoon/early evening followed by light drizzle. Extremely warm/humid for mid December. 70F with mid 60s TDs.
12/16/2015 7:00 AM 0.00 0.0 M M M
12/17/2015 7:00 AM 0.00 M M M M Rain on the way today
12/18/2015 7:00 AM 0.57 0.0 M 0.0 M Continuous light-mod rain and drizzle with passage of frontal bndry.
12/19/2015 7:00 AM 0.01 T M 0.0 M Light snow showers passed through the region around 2:30am to 3:00am. No accumulation. First snowflakes of the season though!
12/20/2015 7:00 AM 0.00 0.0 M M M
12/21/2015 7:00 AM 0.00 0.0 M M M
12/22/2015 7:00 AM 0.06 0.0 M 0.0 M Light rain starting overnight and falling currently this morning.
12/23/2015 7:00 AM 0.07 0.0 M 0.0 M Light rain during the morning yesterday. Foggy conditions this morning.
12/24/2015 8:30 AM 1.88 0.0 M 0.0 M Mod/Hvy rain for almost entire day yesterday. Some light rain still fallingthis morning. Temperatures extremely above avg for Dec. with overnight lows in upper 60s
12/25/2015 7:30 AM T 0.0 M 0.0 M Extremely warm and humid for Christmas Day. Yesterday highs werr in the mid 70s. Today id likely to be in the upper 60s with more rain.
12/26/2015 7:30 AM 0.73 0.0 M 0.0 M On and off rain on Christmas Day. Sometimes heavy. Mostly in the afternoon.
12/27/2015 8:00 AM 0.08 0.0 M 0.0 M Light rain overnight and early this morning. Still warm.
12/28/2015 6:00 AM 0.03 M M M M Light-mod rain for a short time yesterday
12/29/2015 8:00 AM 0.71 0.0 M 0.0 M Rain showers yesterday morning and theb later in the evening becoming a steady lgt-mod rain overnight. Temps in the 40s.
12/30/2015 7:00 AM T 0.0 M 0.0 M Isolated drizzle during yesterday morning.
12/31/2015 7:00 AM 0.03 0.0 M 0.0 M Light rain overnight.
1/1/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
1/2/2016 7:00 AM 0.00 0.0 M M M
1/3/2016 7:00 AM 0.00 0.0 M M M
1/4/2016 7:00 AM 0.00 0.0 M M M
1/5/2016 7:00 AM 0.00 0.0 M M M
1/6/2016 7:00 AM 0.00 0.0 M M M
1/7/2016 7:00 AM 0.00 0.0 M M M
1/8/2016 6:00 AM 0.01 0.0 M 0.0 M Overnight light drizzle.
1/9/2016 7:00 AM 0.01 0.0 M 0.0 M Drizzle
1/10/2016 8:00 AM 1.01 0.0 M 0.0 M Moderate to heavy rains during the evening and overnight.
1/13/2016 7:00 AM T T M 0.0 M Snow showers occurred between 7:45 and 8:15 pm the previous night. Cold and windy conditions along with the snow band. Only accumulation was on vehicles though.
1/14/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
1/19/2016 8:00 AM 0.00 0.0 M 0.0 M What little snow there was is gone.
1/20/2016 8:00 AM 0.00 0.0 M 0.0 M Sent via CoCoRaHS Observer for iOS
1/21/2016 8:00 AM 0.02 0.5 M 0.5 M Snow started just before 8pm and continued past 11:30pm. Moderste intensity between 8-9:30 becoming light after that. All surfaces covered.
1/23/2016 8:00 AM M 18.0 M 18.0 M Snow started around 1:30pm on Friday 1/22 with snow continuing through almost the entire night and still ongoing as of this morning. Very heavy at times. 18" on the ground.
1/24/2016 8:00 AM M 10.0 M 28.0 M Snow started around 1:30pm on Friday 1/22 with snow continuing through almost the entire day Saturday 1/23 ending around 8pm. The snow was extremely heavy for much of the day Saturday coming down at rates of 1"/hr or greater sometimes. 18" of snow estimated through 8am 1/23 and another 10" on Saturday. Core sample currently being melted out.
1/29/2016 8:00 AM 0.00 M M 8.0 M Sent via CoCoRaHS Observer for iOS
1/30/2016 7:00 AM T T M 8.0 M Cold front with strong winds and snow showers moved through between 10am-12:30pm. Little acummultion though.
1/31/2016 7:00 AM 0.00 0.0 M 7.0 M Sent via CoCoRaHS Observer for iOS
2/1/2016 7:00 AM 0.00 0.0 M 5.0 M
2/2/2016 7:00 AM 0.20 0.0 M 2.0 M Light-mod rain yesterday. Snow depth is an average
2/3/2016 8:00 AM T 0.0 M 1.0 M A few dropsn of rain in the gauge this morning. Everything damp. Snow depth varies from ~2" on the north side of the house to none on the south side of the house.
2/4/2016 6:00 AM 0.62 0.0 M T M Mod-locally hvy rain through much of the day. Warm temps and thick fog caused significant snow melt.
2/5/2016 8:00 AM 0.10 T M T M Rain & sleet mix started around midnight. Some snow must have fallen after midnight as there was small patches of slush still on the grass. Some light snow still falling at time of ob.
2/6/2016 7:00 AM 0.05 T M 0.0 M Snow tapered off about an hour after previous observation ending after 9:30am. Brief lull before rain/snow mix started again around 10am. Snow started to pick up in intensity with lower visibility by 10:45am. Snow started to coat the ground but the heavier rates only lasted about 20 min before it tapered off around 11:30am. As of this morning, all non-piled snow has melted.
2/7/2016 7:00 AM 0.00 0.0 M 0.0 M Sent via CoCoRaHS Observer for iOS
2/8/2016 7:00 AM 0.00 0.0 M 0.0 M Sent via CoCoRaHS Observer for iOS
2/9/2016 7:00 AM 0.12 T M T M Light rain/drizzle overnight changing to rain/snow mix around 3am and all snow by morning. Starting to accumulate on grassy surfaces by 7am as snow rates increase.
2/11/2016 7:00 AM 0.00 0.0 M 0.0 M Sent via CoCoRaHS Observer for iOS
2/15/2016 6:00 AM 0.06 0.7 M 0.7 M Light snow this morning coated the ground with 0.7" of new snow. Snow started sometime after midnight and had tapered off to a few flurries by 6am this morning but restarted shortly after.
2/18/2016 7:00 AM 0.00 0.0 M M M
2/19/2016 7:00 AM 0.00 0.0 M M M
2/20/2016 7:00 AM 0.00 0.0 M 0.0 M
2/22/2016 6:00 AM 0.06 0.0 M 0.0 M Steady rain during the midday Sunday with showers continuing through afternoon/evening.
2/23/2016 8:00 AM 0.13 0.0 M 0.0 M Light to moderate rain this morning.
2/25/2016 8:00 AM 1.82 0.0 M 0.0 M Light rain during the midday/afternoon hours Wednesday with overcast skies. Late afternoon breaks in clouds slong with very strong lift and WAA led to development of a very strong line of severe storms. Tornado watch issued but only winds seen were straight line and mostly before the storms arrived. Frequent lightning and very heavy rain for late Feb. storms areived judt after 6pm and continued for over an hr.
2/26/2016 7:00 AM T M M M M Light rain shower during midday yesterday.
3/1/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
3/2/2016 8:00 AM 0.00 0.0 M 0.0 M Sent via CoCoRaHS Observer for iOS
3/3/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
3/4/2016 7:30 AM 0.23 2.1 M 2.1 M Snowfall started around 8pm and continued overnight. No accumulation on blacktop or sidewalk surfaces due to warm temps just a few days before. Still some very light snow falling at time of ob but jo more accumulation occurring.
3/5/2016 7:00 AM T T M T M Additional light snow showers occurred after 7am Friday but no accumulation. Nearly all of the snow that fell early Friday morning melted away by the end of the day Friday.
3/6/2016 7:00 AM T 0.0 M 0.0 M Light rain shower overnight.
3/13/2016 8:00 AM T 0.0 M 0.0 M Brief rain showers during midday yesterday.
3/14/2016 7:00 AM 1.10 0.0 M 0.0 M Sent via CoCoRaHS Observer for iOS. Rainfall through the day and into the overnight. Heavier at night.
3/18/2016 8:00 AM 0.00 0.0 M 0.0 M Warm. Highs near 70 yesterday and in mid 60s today
3/20/2016 8:00 AM 0.24 T M 0.0 M Light - mod rain rain/snow mix at times. Temps from near 40F dropping into the mid 30s
3/23/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
3/24/2016 7:00 AM 0.00 0.0 M M M
3/28/2016 6:00 AM 0.14 0.0 M 0.0 M Light rain overnight.
3/29/2016 8:00 AM 0.08 M M M M Additional light rain yesterday morning.
3/30/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
3/31/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/5/2016 7:00 AM 0.15 0.0 M 0.0 M Light to moderate rain yesterday afternoon between 3:30pm and 7:00pm. Very cold after frontal passage with overnight lows below freezing for several hours.
4/6/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/7/2016 8:00 AM 0.03 0.0 M 0.0 M Light rain starting about 7am this morning. Raining at time of ob.
4/9/2016 7:00 AM 0.05 0.0 M 0.0 M Light rain falling this morning
4/10/2016 8:00 AM 0.19 T M 0.0 M Turning very cold yesterday morning. Mixed rain/snow showers snd rain/ice pellet showers through early afternoon with trace accumulation on ground. Another round of rain/snow mix moved through around 7pm. Winds became strong by late afternoon remaining gusty into the night. Clear skies overnight with temps dropping into the upper 20s.
4/12/2016 7:00 AM 0.02 0.0 M 0.0 M Light rain this morning
4/13/2016 8:30 AM 0.05 0.0 M 0.0 M Additional light rain that fell after previous report yesterday morning, mostly between 8-10am
4/14/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/15/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/16/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/17/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/18/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/19/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/20/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/21/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
4/26/2016 7:00 AM 0.00 0.0 M M M
4/27/2016 7:00 AM 0.00 0.0 M M M
4/28/2016 6:00 AM 0.03 M M M M Light rain yesterday morning and a brief shower overnight.
4/29/2016 8:00 AM 0.24 M M M M Moderate rain overnight
4/30/2016 8:00 AM 0.02 M M M M Light rain overnight
5/1/2016 9:00 AM 0.30 M M M M Rain overnight and continuing this morning.
5/2/2016 8:00 AM 0.23 M M M M Rain yesterday morning and overnight.
5/3/2016 8:00 AM 1.68 M M M M Tstorms after 7pm last night continuing through 10pm. Heavy rains. Additional light-mod rain overnight and just before 8am this morning.
5/4/2016 7:00 AM 0.16 M M M M Rain yesterday morning, evening and early this morning
5/5/2016 7:30 AM 0.03 M M M M Light drizzle overnight and this morning.
5/6/2016 7:15 AM 0.13 M M M M Light drizzle fell last night with light-mod rain falling this morning.
5/7/2016 7:30 AM 1.29 M M M M Rainfall all day Friday finally ending after 10pm as deformstion zone finallly moved away.
5/8/2016 8:00 AM 0.03 M M M M Rain shower overnight.
5/9/2016 6:00 AM 0.00 M M M M First day without measureable rain in 10 days.
5/10/2016 8:00 AM 0.05 M M M M Light rain overnight
5/11/2016 8:00 AM 0.46 M M M M Isolated light rain showers yesterday morning along with strong tstorms after 11pm. Frequent lightning and gusty winds associated with storms.
5/12/2016 8:00 AM 0.23 M M M M Light to moderate rain during the morning into afternoon yesterday.
5/13/2016 8:00 AM 0.01 M M M M Must have gotten a brief shower overnight b/c it had not rained at all yesterday
5/14/2016 7:00 AM 0.22 M M M M Rainfall yesterday
5/15/2016 7:00 AM 0.17 M M M M Rain saturday midday - afternoon
5/16/2016 7:00 AM 0.00 M M M M Finally no rain!
5/17/2016 8:00 AM T M M M M Sent via CoCoRaHS Observer for iOS
5/18/2016 8:00 AM 0.31 M M M M Rain during day yesterday.
5/19/2016 8:00 AM T M M M M A few sprinkles overnight.
5/20/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
5/21/2016 7:00 AM 0.01 M M M M Rain falling this morning starting about 5am.
5/22/2016 7:00 AM 0.55 M M M M Light-moderate rain Saturday morning followed by drizzle during the entire afternoon into evening. Some additional light drizzle overnight.
5/23/2016 8:00 AM 0.32 M M M M Light-mod rain for most of the day becoming mod drizzle by evening then becoming mod rain again towards midnight.
5/24/2016 8:00 AM 0.46 M M M M Partly cloudy in the morning with thunderstorms developing during the mid-late afternoon that produced locally heavy rain. Second round of tstorms moved through the area in the evening. Light rain to drizzle then occurred from late evening into the overnight period.
5/25/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
5/26/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
5/27/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
6/1/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
6/2/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
6/3/2016 7:00 AM 0.00 0.0 M M M
6/4/2016 7:00 AM 0.00 0.0 M M M
6/5/2016 8:00 AM 0.04 M M M M Light rain yesterday
6/6/2016 6:00 AM 0.08 M M M M Clipped by a tstorm yesterday.
6/7/2016 7:00 AM 0.00 0.0 M M M
6/8/2016 6:00 AM 0.00 M M M M Dry frontal passage yesterday evening caused gusty winds and ushered in cooler temps. Lows into the upper 50s
6/9/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
6/10/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
6/11/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
6/12/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
6/13/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
6/14/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
6/15/2016 8:00 AM 0.02 M M M M Light rain falling this morning.
6/16/2016 8:00 AM 0.13 M M M M 0.01" of rain after 8am yesterday. Then additional rain this morning.
6/17/2016 8:00 AM 0.65 M M M M Ground was very dry beforehand even though we've had light rain the past few days. Tstorms moved through in late evening with a good soaking rain. Lasted from about 8:30pm-midnight.
6/28/2016 7:00 AM 0.01 M M M M Rain showers overnight
6/29/2016 7:00 AM 0.52 M M M M Heavy rains fell between 6:30pm and 7pm. Light-mod rains continued after that for another half hr. Strong tstorms but biggest threat was the rain, not much wind or lightning.
6/30/2016 7:00 AM 0.00 0.0 M M M
7/1/2016 7:00 AM 0.00 0.0 M M M
7/2/2016 8:00 AM 0.02 M M M M Clipped by a tstorm Friday evening. Several storms had just missed me through the afternoon.
7/3/2016 6:00 AM T M M M M Light drizzle had just starting falling about 5:45 this morning.
7/4/2016 6:00 AM 0.02 M M M M Light rain yeaterday morning and sn additional rain shower overnight.
7/5/2016 6:00 AM 1.51 M M M M Rain for much of the day on July 4th. Drizzle during the morning and early afternoon with steady mod-hvy rain starting around 3pm and continuing through 6pm. Lighter rain/drizzle continued after that with a break in precip during the late evening. Light rain started again after 10pm with heavier rain likely having fallen overnight. Additional light-mod rain falling this morning still as of 6am.
7/6/2016 8:00 AM 0.10 M M M M Rainy that fell yesterday morning between 6-7am.
7/7/2016 7:00 AM 0.00 0.0 M M M
7/8/2016 8:00 AM 0.00 M M M M Hot
7/9/2016 7:00 AM 0.21 M M M M Several rounds of tatorms rainfall in the afternoon. Extremely hot and humid.
7/10/2016 7:00 AM 0.00 0.0 M M M
7/11/2016 7:00 AM 0.00 0.0 M M M
7/12/2016 7:00 AM 0.00 0.0 M M M
7/15/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
7/16/2016 7:00 AM 0.00 0.0 M M M
7/17/2016 6:00 AM 2.28 M M M M Very heavy rain came with thunderstorms that started at 5:40pm. Majority of the rain fell in a 30-40 min period. Significant cloud to ground lightning, strong winds, and dime sized hail also occurred. Hail started at 6:00pm and lasted 5 minutes.
7/19/2016 8:00 AM 0.73 M M M M Heavy rain from tstorms yesterday afternoon that started at 4:20pm. Heaviest rains fell for ~20 min with strong winds. Light-mod rain continued through 6pm.
7/24/2016 8:00 AM 0.15 M M M M Rain from tstorms that moved through Sat evening around 7pm
7/25/2016 7:00 AM 0.18 M M M M Rain from a tstorm last night between 11pm-midnight
7/26/2016 7:00 AM 0.04 M M M M Rain from a tstorm that moved through around 10pm last night
7/27/2016 7:00 AM 0.00 0.0 M M M
7/28/2016 7:00 AM 0.00 0.0 M M M
7/29/2016 8:00 AM 1.33 M M M M Rain started with tstorms yesterday at 4pm and generally continued through 7pm without much break. Another period of rain started by 10pm and rain was still falling at midnight.
7/30/2016 8:00 AM 0.01 M M M M Shower overnight
7/31/2016 8:00 AM 1.20 M M M M Showers and tstorms during the evening yesterday. Severe flash flooding in Ellicott City about 20 min to the northwest.
8/1/2016 8:00 AM 0.01 M M M M Shower passed through yesterday evening
8/2/2016 6:00 AM T M M M M Overnight shower
8/9/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
8/10/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
8/13/2016 7:00 AM 0.21 M M M M Weak tstorm/ mod rain friday afternoon
8/15/2016 6:00 AM 0.35 M M M M Tstorms moved through late Sunday evening
8/21/2016 8:00 AM 0.00 0.0 M M M
8/22/2016 8:00 AM 1.14 M M M M Heavy rain from tstorms fell during the late afternoon. Lots of thunder and lightning.
8/28/2016 6:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/1/2016 7:30 AM 0.01 M M M M Just starting to rain again at 7:30am
9/2/2016 8:00 AM 0.12 M M M M Light to moderate rain with frontal passage yesterday morning.
9/6/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/9/2016 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/19/2016 8:10 AM 0.50 M M M M Its finally raining!
9/20/2016 6:15 AM 0.26 M M M M Light-mod rain from morning through early afternoon. Possibly an additional shower overnight.
9/22/2016 7:00 AM 0.00 M M M M
9/24/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/26/2016 8:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
9/27/2016 8:00 AM 0.45 M M M M Rain overnight and early this morning.
9/28/2016 8:30 AM 0.01 M M M M Overnight rain shower. Additional light rain just starting at 8am today.
9/29/2016 7:30 AM 1.80 M M M M On and off rain the entire day. Still raining this morning. More heavy rain on the way.
9/30/2016 8:30 AM 1.68 M M M M Continued rain for nearly the entire day. Periods of heavy rain sdding to non-stop light-mod drizzle. Still drizzling this morning.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/17/2015 10/26/2015 6:30 AM 10 0.03 M M Small amount of rainfall while away on vacation in the Finger Lakes.
2/12/2016 2/14/2016 8:00 AM 3 T 0.0 M Believe that snow fell either prior to dawn on the 13th or just after daybreak on the 13th. Trace of new snow.
2/16/2016 2/17/2016 8:00 AM 2 1.10 T M Approxiately 3-4" of snow Monday morning into the afternoon with changeover briefly to sleet. Freezing rain by evening and overnight with 0.10" accumulation. Everything iced over on Tuesday morning. Changeover to all rain occurred around 9-10am becoming heavy around midday.Rain cleared the region by mid-afternoon Tues 2/17.
4/22/2016 4/25/2016 8:00 AM 4 0.10 M M Rain while away in Boston. Rain fell on Friday 4/22 into Saturday 4/23.
6/18/2016 6/27/2016 8:00 AM 10 1.13 M M Rain while away for vacation in Poconos. Heavy rains reported by neighbors on 6/23 and 6/24.
7/13/2016 7/14/2016 8:00 AM 2 0.25 M M Two day precip total. Approx 0.10" on the 13th and 0.15" on the 14th. Thunderstorms both days.
8/16/2016 8/20/2016 8:00 AM 5 3.16 M M Heavy rain that occurred while away in New Orleans. Neighbor said very strong storms moved through on night of Wed 8/17 but rain may have fallen on other days as well.



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
7/16/2016 6:00 PM Very heavy rain, strong winds, and frequent cloud to ground lightning accompanied the hail. 5/8" 1/2" Grape 1/4" Pea Size Hard|Clear Ice|White Ice 5 1min minor leaf damage Continuous True After rain After smaller hail 10-20