Station Overview Station Location
Station Number MD-CV-7 Latitude 38.5517
Station Name Prince Frederick 1.4 W Longitude -76.6158
County Calvert Elevation (ft) 148



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 10 3.62 8.02 31 6.92 29 1.10 2 1 6 3 0.0 0 0
Nov 10 3.41 1.86 30 1.86 28 0.00 2 1 5 0 0.0 0 0
Dec 10 3.54 2.70 31 2.70 31 0.00 0 0 7 1 4.4 4 10
Jan 11 3.24 2.04 31 2.04 31 0.00 0 0 8 4 4.3 3 5
Feb 11 2.98 1.05 28 1.05 28 0.00 0 0 6 5 1.4 2 3
March 11 4.03 5.08 31 5.08 31 0.00 0 0 12 2 1.0 2 1
April 11 3.51 3.67 30 3.67 30 0.00 0 0 12 3 0.0 0 0
May 11 4.38 2.93 31 2.93 27 0.00 4 0 10 6 0.0 0 0
June 11 3.97 2.39 30 2.33 25 0.06 5 1 8 3 0.0 0 0
July 11 4.08 1.39 31 1.39 31 0.00 0 0 9 0 0.0 0 0
Aug 11 3.62 11.80 31 11.73 29 0.07 2 1 11 1 0.0 0 0
Sept 11 3.89 7.75 30 2.20 21 5.55 9 1 7 3 0.0 0 0
Water Year Totals: 44.27" 50.68" 365 days 43.90" 341 6.78" 24 days 5 101 days 31 days 11.1" 11 days 19 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
10/1/2010 4.93
10/2/2010 0.00
10/3/2010 **
10/4/2010 1.10
10/5/2010 0.24
10/6/2010 0.00
10/7/2010 T
10/8/2010 0.00
10/9/2010 0.00
10/10/2010 0.00
10/11/2010 0.00
10/12/2010 0.00
10/13/2010 0.00
10/14/2010 T
10/15/2010 0.95
10/16/2010 0.00
10/17/2010 0.00
10/18/2010 0.00
10/19/2010 0.00
10/20/2010 T
10/21/2010 0.21
10/22/2010 0.00
10/23/2010 0.00
10/24/2010 0.00
10/25/2010 0.00
10/26/2010 0.00
10/27/2010 0.10
10/28/2010 0.49
10/29/2010 0.00
10/30/2010 0.00
10/31/2010 0.00
11/1/2010 0.00
11/2/2010 **
11/3/2010 0.00
11/4/2010 0.54
11/5/2010 0.80
11/6/2010 0.00
11/7/2010 0.00
11/8/2010 0.00
11/9/2010 0.00
11/10/2010 0.00
11/11/2010 0.00
11/12/2010 0.00
11/13/2010 0.00
11/14/2010 0.00
11/15/2010 0.00
11/16/2010 0.13
11/17/2010 0.37
11/18/2010 0.00
11/19/2010 0.00
11/20/2010 0.00
11/21/2010 0.00
11/22/2010 0.00
11/23/2010 0.00
11/24/2010 0.00
11/25/2010 0.02
11/26/2010 0.00
11/27/2010 0.00
11/28/2010 0.00
11/29/2010 0.00
11/30/2010 0.00
12/1/2010 0.14
12/2/2010 0.93
12/3/2010 0.00
12/4/2010 0.00
12/5/2010 0.00
12/6/2010 0.00
12/7/2010 0.00
12/8/2010 0.00
12/9/2010 0.00
12/10/2010 0.00
12/11/2010 0.00
12/12/2010 0.46
12/13/2010 0.75
12/14/2010 T
12/15/2010 0.00
12/16/2010 0.00
12/17/2010 0.24
12/18/2010 0.00
12/19/2010 0.00
12/20/2010 0.00
12/21/2010 0.00
12/22/2010 0.00
12/23/2010 0.00
12/24/2010 0.00
12/25/2010 0.00
12/26/2010 0.06
12/27/2010 0.12
12/28/2010 0.00
12/29/2010 0.00
12/30/2010 0.00
12/31/2010 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.00
1/2/2011 0.08
1/3/2011 0.15
1/4/2011 0.00
1/5/2011 0.00
1/6/2011 0.00
1/7/2011 0.00
1/8/2011 T
1/9/2011 T
1/10/2011 0.00
1/11/2011 0.00
1/12/2011 0.08
1/13/2011 0.00
1/14/2011 0.00
1/15/2011 0.00
1/16/2011 0.00
1/17/2011 0.00
1/18/2011 0.41
1/19/2011 0.02
1/20/2011 0.00
1/21/2011 T
1/22/2011 0.00
1/23/2011 0.00
1/24/2011 0.00
1/25/2011 0.00
1/26/2011 0.35
1/27/2011 0.87
1/28/2011 0.00
1/29/2011 0.08
1/30/2011 0.00
1/31/2011 T
2/1/2011 T
2/2/2011 0.60
2/3/2011 0.00
2/4/2011 0.00
2/5/2011 T
2/6/2011 0.11
2/7/2011 0.00
2/8/2011 T
2/9/2011 0.00
2/10/2011 0.03
2/11/2011 0.00
2/12/2011 0.00
2/13/2011 0.00
2/14/2011 0.00
2/15/2011 0.00
2/16/2011 0.00
2/17/2011 0.00
2/18/2011 0.00
2/19/2011 0.00
2/20/2011 0.00
2/21/2011 T
2/22/2011 0.15
2/23/2011 0.00
2/24/2011 0.00
2/25/2011 0.07
2/26/2011 0.09
2/27/2011 0.00
2/28/2011 T
3/1/2011 0.78
3/2/2011 0.00
3/3/2011 0.00
3/4/2011 0.00
3/5/2011 0.00
3/6/2011 T
3/7/2011 0.93
3/8/2011 0.00
3/9/2011 0.00
3/10/2011 0.50
3/11/2011 1.09
3/12/2011 0.00
3/13/2011 0.00
3/14/2011 0.00
3/15/2011 0.00
3/16/2011 0.83
3/17/2011 0.00
3/18/2011 0.00
3/19/2011 0.00
3/20/2011 0.00
3/21/2011 T
3/22/2011 0.30
3/23/2011 0.04
3/24/2011 0.35
3/25/2011 0.03
3/26/2011 0.00
3/27/2011 0.08
3/28/2011 0.01
3/29/2011 0.00
3/30/2011 0.00
3/31/2011 0.14
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.22
4/2/2011 0.00
4/3/2011 0.05
4/4/2011 T
4/5/2011 0.13
4/6/2011 0.10
4/7/2011 0.00
4/8/2011 0.01
4/9/2011 0.36
4/10/2011 0.00
4/11/2011 0.00
4/12/2011 0.00
4/13/2011 0.10
4/14/2011 0.02
4/15/2011 0.00
4/16/2011 0.00
4/17/2011 1.48
4/18/2011 0.00
4/19/2011 0.00
4/20/2011 0.00
4/21/2011 0.00
4/22/2011 0.00
4/23/2011 0.42
4/24/2011 T
4/25/2011 0.01
4/26/2011 0.00
4/27/2011 0.00
4/28/2011 T
4/29/2011 0.77
4/30/2011 0.00
5/1/2011 0.00
5/2/2011 T
5/3/2011 T
5/4/2011 0.54
5/5/2011 0.47
5/6/2011 0.00
5/7/2011 0.00
5/8/2011 0.00
5/9/2011 T
5/10/2011 0.00
5/11/2011 0.00
5/12/2011 0.00
5/13/2011 T
5/14/2011 0.05
5/15/2011 1.01
5/16/2011 0.37
5/17/2011 0.03
5/18/2011 0.12
5/19/2011 0.12
5/20/2011 T
5/21/2011 0.00
5/22/2011 0.00
5/23/2011 0.17
5/24/2011 T
5/25/2011 0.05
5/26/2011 0.00
5/27/2011 0.00
5/28/2011 **
5/29/2011 **
5/30/2011 **
5/31/2011 **
6/1/2011 **
6/2/2011 **
6/3/2011 **
6/4/2011 **
6/5/2011 0.06
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 0.00
6/9/2011 0.00
6/10/2011 0.07
6/11/2011 0.00
6/12/2011 0.32
6/13/2011 0.83
6/14/2011 0.00
6/15/2011 0.00
6/16/2011 0.00
6/17/2011 0.59
6/18/2011 T
6/19/2011 0.00
6/20/2011 0.26
6/21/2011 0.21
6/22/2011 0.00
6/23/2011 0.00
6/24/2011 T
6/25/2011 0.00
6/26/2011 0.00
6/27/2011 0.02
6/28/2011 T
6/29/2011 0.03
6/30/2011 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.00
7/2/2011 0.00
7/3/2011 0.09
7/4/2011 0.05
7/5/2011 0.02
7/6/2011 0.00
7/7/2011 0.01
7/8/2011 0.00
7/9/2011 0.48
7/10/2011 0.00
7/11/2011 0.00
7/12/2011 0.07
7/13/2011 0.00
7/14/2011 0.09
7/15/2011 0.00
7/16/2011 0.00
7/17/2011 0.00
7/18/2011 0.00
7/19/2011 0.00
7/20/2011 0.46
7/21/2011 0.00
7/22/2011 0.00
7/23/2011 0.00
7/24/2011 0.00
7/25/2011 0.00
7/26/2011 0.12
7/27/2011 0.00
7/28/2011 0.00
7/29/2011 0.00
7/30/2011 0.00
7/31/2011 0.00
8/1/2011 0.00
8/2/2011 0.00
8/3/2011 T
8/4/2011 0.29
8/5/2011 0.00
8/6/2011 0.00
8/7/2011 0.03
8/8/2011 0.05
8/9/2011 0.00
8/10/2011 0.21
8/11/2011 0.00
8/12/2011 0.00
8/13/2011 0.00
8/14/2011 0.12
8/15/2011 1.45
8/16/2011 0.94
8/17/2011 0.00
8/18/2011 0.00
8/19/2011 0.00
8/20/2011 **
8/21/2011 0.07
8/22/2011 0.03
8/23/2011 0.00
8/24/2011 0.00
8/25/2011 0.00
8/26/2011 0.28
8/27/2011 0.00
8/28/2011 8.26
8/29/2011 0.07
8/30/2011 0.00
8/31/2011 0.00
9/1/2011 0.00
9/2/2011 0.01
9/3/2011 0.00
9/4/2011 **
9/5/2011 **
9/6/2011 **
9/7/2011 **
9/8/2011 **
9/9/2011 **
9/10/2011 **
9/11/2011 **
9/12/2011 5.55
9/13/2011 0.00
9/14/2011 0.00
9/15/2011 0.00
9/16/2011 T
9/17/2011 0.00
9/18/2011 T
9/19/2011 0.00
9/20/2011 0.00
9/21/2011 0.08
9/22/2011 T
9/23/2011 0.02
9/24/2011 1.87
9/25/2011 0.01
9/26/2011 0.00
9/27/2011 0.00
9/28/2011 0.09
9/29/2011 0.12
9/30/2011 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2010 7:00 AM 4.93 M M M M A new water year starting today seems a bit arbitrary . Temp. 61ºF and feels cool. That oppressive humidity is gone.
10/2/2010 7:00 AM 0.00 0.0 M M M
10/5/2010 7:00 AM 0.24 M M M M
10/6/2010 7:00 AM 0.00 0.0 M M M
10/7/2010 7:00 AM T M M M M Gauge held less than .01inch.
10/8/2010 7:00 AM 0.00 0.0 M M M
10/9/2010 7:00 AM 0.00 0.0 M M M
10/10/2010 7:00 AM 0.00 0.0 M M M
10/11/2010 7:00 AM 0.00 0.0 M M M
10/12/2010 7:00 AM 0.00 0.0 M M M
10/13/2010 7:00 AM 0.00 0.0 M M M
10/14/2010 7:00 AM T M M M M Currently not raining, but a few drips around.
10/15/2010 7:00 AM 0.95 M M M M Temp. 50ºF. Rained most of the day, let up in late afternoon.
10/16/2010 7:00 AM 0.00 0.0 M M M
10/17/2010 7:00 AM 0.00 0.0 M M M
10/18/2010 7:00 AM 0.00 0.0 M M M
10/19/2010 7:00 AM 0.00 0.0 M M M Completely overcast.
10/20/2010 7:00 AM T M M M M Currently raining.
10/21/2010 7:00 AM 0.21 M M M M Rained most of the day.
10/22/2010 7:00 AM 0.00 0.0 M M M Beautiful clear stars this morning.
10/23/2010 7:00 AM 0.00 0.0 M M M
10/24/2010 7:00 AM 0.00 0.0 M M M
10/25/2010 7:00 AM 0.00 0.0 M M M
10/26/2010 7:00 AM 0.00 0.0 M M M
10/27/2010 7:00 AM 0.10 M M M M Tenth of an inch and still raining.
10/28/2010 7:00 AM 0.49 M M M M Continued rain with long sunny breaks. High humidity.
10/29/2010 7:00 AM 0.00 0.0 M M M
10/30/2010 7:00 AM 0.00 0.0 M M M
10/31/2010 7:00 AM 0.00 0.0 M M M Yesterday's weather on the Mall in DC was partly cloudy and cool with a light breeze; a lovely autumn day !
11/1/2010 7:00 AM 0.00 0.0 M M M
11/4/2010 7:15 AM 0.54 M M M M Currently raining. Rain started overnight.
11/5/2010 7:00 AM 0.80 M M M M Rain event appears to be over. Total for event, 1.34 inches.
11/6/2010 7:00 AM 0.00 0.0 M M M
11/7/2010 7:00 AM 0.00 0.0 M M M Frost on leaves and windshield.
11/8/2010 7:00 AM 0.00 0.0 M M M Some frost on car windows.
11/9/2010 7:00 AM 0.00 0.0 M M M
11/10/2010 7:00 AM 0.00 0.0 M M M
11/11/2010 7:00 AM 0.00 0.0 M M M
11/12/2010 7:00 AM 0.00 0.0 M M M Temp. 32ºF. Thin ice on bird bath water. Still nice color in some trees.
11/13/2010 7:00 AM 0.00 0.0 M M M
11/14/2010 7:00 AM 0.00 0.0 M M M
11/15/2010 7:00 AM 0.00 0.0 M M M A lot of dew.
11/16/2010 7:00 AM 0.13 M M M M Currently not raining, but expect more. Temp. 50ºF.
11/17/2010 7:00 AM 0.37 M M M M Some lightning and very distant thunder overnight.
11/18/2010 7:00 AM 0.00 0.0 M M M
11/19/2010 7:00 AM 0.00 0.0 M M M
11/20/2010 7:00 AM 0.00 0.0 M M M
11/21/2010 7:00 AM 0.00 0.0 M M M
11/22/2010 7:00 AM 0.00 0.0 M M M Foggy, heavy dew.
11/23/2010 7:00 AM 0.00 0.0 M M M
11/24/2010 7:00 AM 0.00 0.0 M M M
11/25/2010 7:00 AM 0.02 M M M M Not currently raining.
11/26/2010 7:00 AM 0.00 0.0 M M M Overcast. Temp. 59ºF
11/27/2010 7:00 AM 0.00 0.0 M M M Temp. 30ºF.
11/28/2010 7:00 AM 0.00 0.0 M M M
11/29/2010 7:00 AM 0.00 0.0 M M M Clear and frosty.
11/30/2010 7:00 AM 0.00 0.0 M M M Temp. 52ºF. Light breeze
12/1/2010 7:00 AM 0.14 M M M M Currently raining and windy. Temp. 62ºF.
12/2/2010 7:00 AM 0.93 M M M M Temp. 28ºF. A total of 1.07" for the rain event.
12/3/2010 7:00 AM 0.00 0.0 M M M Overcast
12/4/2010 7:00 AM 0.00 0.0 M M M
12/5/2010 7:00 AM 0.00 0.0 M M M
12/6/2010 7:00 AM 0.00 0.0 M M M
12/7/2010 7:00 AM 0.00 0.0 M M M
12/8/2010 7:00 AM 0.00 0.0 M M M
12/9/2010 7:00 AM 0.00 0.0 M M M
12/10/2010 7:00 AM 0.00 0.0 M M M
12/11/2010 7:00 AM 0.00 0.0 M 0.0 M
12/12/2010 7:00 AM 0.46 M M M M Currently not raining and mild. Temp 54ºF.
12/13/2010 7:00 AM 0.75 0.1 M T M Currently flurries. Snow on cooler surfaces only. Rain yesterday, was snowing at 6am today.
12/14/2010 7:00 AM T T M 0.0 M Observed a small amount of snow in the gauge at 10:30am, but this morning - nothing. Temp. 21ºF.
12/15/2010 7:00 AM 0.00 0.0 M 0.0 M Temp. 18ºF
12/16/2010 7:00 AM 0.00 0.0 M 0.0 M 19ºF. Nothing, and the schools are already closed.
12/17/2010 7:00 AM 0.24 2.2 M 2.0 M Powdery snow @ 20ºF.
12/18/2010 7:00 AM 0.00 0.0 M 1.5 M A bit of sun, but very little melting occurred.
12/19/2010 7:00 AM 0.00 0.0 M 1.5 M
12/20/2010 7:00 AM 0.00 0.0 M 0.5 M Lovely sunrise sky. Venus bright pre-dawn.
12/21/2010 7:00 AM 0.00 0.0 M 0.5 M
12/22/2010 7:00 AM 0.00 0.0 M T M
12/23/2010 7:00 AM 0.00 0.0 M T M Windy and cloudy. Large areas of bare ground. Snow still in shaded areas and in my driveway. Temp. 31ºF.
12/24/2010 7:00 AM 0.00 0.0 M T M
12/25/2010 7:00 AM 0.00 0.0 M T M Received a very nice calendar for Christmas !
12/26/2010 7:00 AM 0.06 0.5 M 0.5 M Not currently snowing, but expect more.
12/27/2010 7:00 AM 0.12 1.6 M 2.5 M Seems to have stopped snowing by midnight. Windy, overcast
12/28/2010 7:00 AM 0.00 0.0 M 1.0 M Temp. 27ºF.
12/29/2010 7:00 AM 0.00 0.0 M 0.5 M
12/30/2010 7:00 AM 0.00 0.0 M 0.5 M
12/31/2010 7:00 AM 0.00 0.0 M T M
1/1/2011 7:00 AM 0.00 0.0 M 0.0 M Have a good year.
1/2/2011 7:38 AM 0.08 0.0 M 0.0 M Currently raining. Overnight low 50.2ºF.
1/3/2011 7:00 AM 0.15 0.0 M 0.0 M A total of .23inch for the rain event. Temp. 27ºF.
1/4/2011 7:00 AM 0.00 0.0 M 0.0 M
1/5/2011 7:00 AM 0.00 0.0 M 0.0 M
1/6/2011 7:00 AM 0.00 0.0 M 0.0 M
1/7/2011 7:00 AM 0.00 0.0 M 0.0 M Temp. 32ºF.
1/8/2011 7:00 AM T T M T M A light dusting on some of the colder surfaces. Looks like little styrofoam balls. Just under .01 inch in the gauge. Temp. 20ºF. Snow fell overnight/early morning.
1/9/2011 7:00 AM T T M 0.0 M Cold & Windy morning.
1/10/2011 7:00 AM 0.00 0.0 M 0.0 M
1/11/2011 7:00 AM 0.00 0.0 M 0.0 M Overcast skies.
1/12/2011 7:00 AM 0.08 0.1 M T M Currently clear. Temp.27ºF. Several brief and light snows yesterday morning with temps just above freezing. Some sleet and snow around noon. With a high temp of 34º, this all melted. Temps fell below freezing, it was snowing at 10:15pm over a layer of ice. This morning, a thin glaze of ice with tenth of snow over it covers all.
1/13/2011 7:00 AM 0.00 0.0 M T M Temp. 25ºF. Yesterday's layer of ice covered with a tenth of snow did not melt away. Sun only occasionally peeked out. I can still ice skate on my back deck.
1/14/2011 7:00 AM 0.00 0.0 M T M Temp. 19ºF. There are still small amounts of snow in sheltered areas. Which is amazing considering only one tenth inch fell on the 11th.
1/15/2011 7:00 AM 0.00 0.0 M T M
1/16/2011 7:00 AM 0.00 0.0 M 0.0 M
1/17/2011 7:00 AM 0.00 0.0 M 0.0 M
1/18/2011 7:00 AM 0.41 0.0 M T M Ice accretion measured on shrub branch is .1 inch. Total snow of trace is from ice only.
1/19/2011 7:00 AM 0.02 0.0 M 0.0 M Foggy
1/20/2011 7:00 AM 0.00 0.0 M 0.0 M Venus in the east, big yellow full moon in the west.
1/21/2011 7:00 AM T 0.0 M 0.0 M
1/22/2011 7:00 AM 0.00 0.0 M 0.0 M Temp. 17ºF and calm.
1/23/2011 7:00 AM 0.00 0.0 M 0.0 M Temp. 18ºF. Overnight low 11.8º. Hoarfrost on cars and some roof shingles.
1/24/2011 7:00 AM 0.00 0.0 M 0.0 M Temp. 10ºF
1/25/2011 7:00 AM 0.00 0.0 M 0.0 M
1/26/2011 7:00 AM 0.35 0.0 M 0.0 M Currently raining.
1/27/2011 7:00 AM 0.87 3.8 0.42 4.0 0.42 Continued rain from yesterday,all day. Saw some sleet at about 3:15pm. Snow around 7pm. Had 3 inches by 10pm.
1/28/2011 7:00 AM 0.00 0.0 M 2.0 M
1/29/2011 7:00 AM 0.08 0.4 M 2.0 M Snow measured @ 2:30pm after flakes stopped falling. Temp. was just above freezing, but snow did accumulate on the snowboard.
1/30/2011 7:00 AM 0.00 0.0 M 1.5 M
1/31/2011 7:00 AM T T M 0.5 M Signs of snow precipitation on wood surfaces, but very little. Nothing in the gauge. Temp. 31ºF.
2/1/2011 7:00 AM T 0.0 M 0.5 M Temp. 29ºF. Light glaze of ice on wooden front porch. Small amount of moisture in bottom of gauge.
2/2/2011 7:00 AM 0.60 0.0 M T M Temp. 39ºF. Six tenths inch of rain overnight. Currently foggy and completely overcast.
2/3/2011 7:00 AM 0.00 0.0 M 0.0 M Temp. 29ºF. Yesterday's high was 61ºF.
2/4/2011 7:00 AM 0.00 0.0 M 0.0 M
2/5/2011 7:00 AM T 0.0 M 0.0 M Currently no precipitation. Foggy. All surfaces wet.
2/6/2011 7:00 AM 0.11 0.0 M 0.0 M Temps. above freezing yesterday and overnight.
2/7/2011 7:00 AM 0.00 0.0 M 0.0 M Frost on cars.
2/8/2011 7:00 AM T 0.0 M 0.0 M
2/9/2011 7:00 AM 0.00 0.0 M 0.0 M Temp. 17ºF
2/10/2011 7:00 AM 0.03 1.0 M 1.0 M Fluffy snow, 26ºF.
2/11/2011 7:00 AM 0.00 0.0 M T M Snow disappeared quickly yesterday. Snow only in well shaded areas.
2/12/2011 7:00 AM 0.00 0.0 M T M Frozen, bright morning.
2/13/2011 7:00 AM 0.00 0.0 M 0.0 M
2/14/2011 7:00 AM 0.00 0.0 M 0.0 M Lovely morning, 46ºF.
2/15/2011 7:00 AM 0.00 0.0 M 0.0 M
2/16/2011 7:00 AM 0.00 0.0 M 0.0 M
2/17/2011 7:00 AM 0.00 0.0 M 0.0 M
2/18/2011 7:00 AM 0.00 0.0 M 0.0 M
2/19/2011 7:00 AM 0.00 0.0 M 0.0 M
2/20/2011 7:00 AM 0.00 0.0 M 0.0 M
2/21/2011 7:00 AM T 0.0 M 0.0 M Light wind. Saw a few drops in gauge and on windshield at 10:30pm yesterday. This morning, everything is dry.
2/22/2011 7:00 AM 0.15 0.4 M 0.5 M Light rain began in afternoon. Snow ended before 7am this morning. No snow on roads, driveway. Ice layer under the snow. Temp. 28ºF.
2/23/2011 7:00 AM 0.00 0.0 M T M Cold, 21ºF, and clear.
2/24/2011 7:00 AM 0.00 0.0 M 0.0 M
2/25/2011 7:00 AM 0.07 0.0 M 0.0 M Currently, light rain.
2/26/2011 7:00 AM 0.09 0.0 M 0.0 M Calm 31ºF. Windiest day I've ever seen yesterday. No damage or loss of electricity. Fortunately the ground was not saturated. Early rain gave way to bright sunshine and high temp. of 68ºF. Heard thunder about 1:20pm, but nothing followed.
2/27/2011 7:00 AM 0.00 0.0 M 0.0 M
2/28/2011 7:00 AM T 0.0 M 0.0 M Less than .01 in gauge.
3/1/2011 7:00 AM 0.78 0.0 M 0.0 M Temp. 33ºF. Rainy and windy yesterday with a high of 74ºF.
3/2/2011 7:00 AM 0.00 0.0 M 0.0 M
3/3/2011 7:00 AM 0.00 0.0 M 0.0 M
3/4/2011 7:00 AM 0.00 0.0 M 0.0 M
3/5/2011 7:00 AM 0.00 0.0 M 0.0 M
3/6/2011 7:00 AM T 0.0 M 0.0 M Overcast and warm.
3/7/2011 7:00 AM 0.93 0.0 M 0.0 M
3/8/2011 7:00 AM 0.00 0.0 M 0.0 M
3/9/2011 7:00 AM 0.00 0.0 M 0.0 M
3/10/2011 7:00 AM 0.50 0.0 M 0.0 M Currently raining. Half inch exactly. First daffodils blooming.
3/11/2011 7:00 AM 1.09 0.0 M 0.0 M Rain and high winds yesterday. Rain event total = 1.59 inches.
3/12/2011 7:00 AM 0.00 0.0 M 0.0 M
3/13/2011 7:00 AM 0.00 0.0 M 0.0 M
3/14/2011 7:00 AM 0.00 0.0 M 0.0 M
3/15/2011 7:00 AM 0.00 0.0 M 0.0 M
3/16/2011 7:00 AM 0.83 0.0 M 0.0 M Cloudy, temp. 43ºF.
3/17/2011 7:00 AM 0.00 0.0 M 0.0 M
3/18/2011 7:00 AM 0.00 0.0 M 0.0 M 53ºF
3/19/2011 7:00 AM 0.00 0.0 M 0.0 M Temp 58ºF. No signs of even a trace of rain here. Yesterday's high 82.6ºF.
3/20/2011 7:00 AM 0.00 0.0 M 0.0 M
3/21/2011 7:00 AM T 0.0 M 0.0 M
3/22/2011 7:00 AM 0.30 0.0 M 0.0 M Morning rain put .23inch in the gauge. The rest came starting at 8pm with thunder.
3/23/2011 7:00 AM 0.04 0.0 M 0.0 M Rain began after dark. Birds are singing their hearts out.
3/24/2011 7:00 AM 0.35 0.0 M 0.0 M Currently a light mist. Rain began yesterday evening.
3/25/2011 7:00 AM 0.03 0.0 M 0.0 M Temp. 29ºF, which is bad news for all the spring flowering trees blooming now. My magnolia is in full bloom and I expect the blossoms will all turn brown.
3/26/2011 7:00 AM 0.00 0.0 M 0.0 M
3/27/2011 7:00 AM 0.08 0.7 M 0.5 M Currently snowing. Temp. 32ºF. Calm. Layer of snow on all surfaces except the road and gravel driveway. Snow began overnight.
3/28/2011 7:00 AM 0.01 0.3 M 0.0 M The .3inch of snow measured at 9:50am. By 11:30am 90%of the snowfall had melted.
3/29/2011 7:00 AM 0.00 0.0 M 0.0 M
3/30/2011 7:00 AM 0.00 0.0 M 0.0 M
3/31/2011 7:00 AM 0.14 0.0 M 0.0 M Currently, light mist.
4/1/2011 7:00 AM 0.22 0.0 M 0.0 M
4/2/2011 7:00 AM 0.00 0.0 M 0.0 M
4/3/2011 7:00 AM 0.05 0.0 M 0.0 M While traveling through the northern end of Calvert Co. yesterday at 3:30pm we encountered lightning, thunder and a shower of very small hail/sleet/mix stuff. We soon drove north of it.
4/4/2011 7:00 AM T 0.0 M 0.0 M Less than .01 in the gauge. Saw lightning in the East last evening.
4/5/2011 7:00 AM 0.13 0.0 M 0.0 M Heard strong wind at 5:05am. No damage.
4/6/2011 7:00 AM 0.10 0.0 M 0.0 M
4/7/2011 7:00 AM 0.00 0.0 M 0.0 M
4/8/2011 7:00 AM 0.01 0.0 M 0.0 M
4/9/2011 7:00 AM 0.36 0.0 M 0.0 M
4/10/2011 7:00 AM 0.00 0.0 M 0.0 M
4/11/2011 7:00 AM 0.00 0.0 M 0.0 M
4/12/2011 7:00 AM 0.00 0.0 M 0.0 M First time using A/C last night.
4/13/2011 7:00 AM 0.10 0.0 M 0.0 M Not currently raining. 52ºF
4/14/2011 7:00 AM 0.02 0.0 M 0.0 M
4/15/2011 7:00 AM 0.00 0.0 M 0.0 M Lovely day yesterday.
4/16/2011 7:00 AM 0.00 0.0 M 0.0 M Windy
4/17/2011 7:00 AM 1.48 0.0 M 0.0 M A very windy rain storm, but no damage here. At 4:35pm lightning and thunder. A few readings: 10:55am=.18", 4:35pm=.40", 7:35pm approximately 1.5"
4/18/2011 7:00 AM 0.00 0.0 M 0.0 M
4/19/2011 7:00 AM 0.00 0.0 M 0.0 M
4/20/2011 7:00 AM 0.00 0.0 M M M
4/21/2011 7:00 AM 0.00 0.0 M M M
4/22/2011 7:00 AM 0.00 0.0 M M M
4/23/2011 7:00 AM 0.42 0.0 M 0.0 M Temp. 48ºF and calm.
4/24/2011 7:00 AM T 0.0 M 0.0 M Trace is from light mist at time of yesterday's reading.
4/25/2011 7:00 AM 0.01 0.0 M 0.0 M
4/26/2011 7:00 AM 0.00 0.0 M 0.0 M Yesterday's high was 89.8ºF.
4/27/2011 7:00 AM 0.00 0.0 M 0.0 M
4/28/2011 7:00 AM T 0.0 M 0.0 M A sprinkle around 11:30am and 9:30pm. Windy this morning.
4/29/2011 7:00 AM 0.77 0.0 M 0.0 M Lovely crescent moon rising at 4:30am. By 3:30pm yesterday, .72inch in the gauge.
4/30/2011 7:00 AM 0.00 0.0 M 0.0 M
5/1/2011 7:00 AM 0.00 0.0 M M M
5/2/2011 7:00 AM T M M M M Trace probably from yesterday evening. A bit of a sprinkle too at time of obs.
5/3/2011 7:00 AM T M M M M Trace from early yesterday morning.
5/4/2011 7:00 AM 0.54 M M M M Currently raining. Rain began before 5:30am.
5/5/2011 7:00 AM 0.47 M M M M Two day total is 1.01 inches.
5/6/2011 7:00 AM 0.00 0.0 M M M
5/7/2011 7:00 AM 0.00 0.0 M M M Beautiful sunny morning. Last night's rains missed us. Everything dry at 10:45pm and nothing in the gauge this morning.
5/8/2011 7:00 AM 0.00 0.0 M M M Happy Mother's Day, Moms. Nothing in my gauge, but encountered some sprinkles last night in Charles Co. at the Blue Crabs ballpark south of Waldorf and on the ride home.
5/9/2011 7:00 AM T M M M M Hubby says we got a bit in late afternoon, nothing in the gauge.
5/10/2011 7:00 AM 0.00 0.0 M M M
5/11/2011 7:00 AM 0.00 0.0 M M M
5/12/2011 7:00 AM 0.00 0.0 M M M
5/13/2011 7:00 AM T M M M M Currently sprinkling.
5/14/2011 7:00 AM 0.05 M M M M May have rained earlier this morning. Currently not raining and 60ºF.
5/15/2011 7:00 AM 1.01 M M M M At 5pm had .21inch in the gauge. Heavy rain and lightning between 8pm and 9:30pm. An overcast, but pleasant morning.
5/16/2011 7:00 AM 0.37 M M M M Heavy rain and a small amount of pea-sized hail at 7:30pm. By 9:10pm gauge had .34inch. Electricity out for about 45min from 9:30pm. Filed a hail report.
5/17/2011 7:00 AM 0.03 M M M M Currently light rain. Probably started before 6am.
5/18/2011 7:00 AM 0.12 M M M M Heard rainfall overnight.
5/19/2011 7:00 AM 0.12 M M M M
5/20/2011 7:00 AM T M M M M Saw some sprinkles yesterday; nothing in gauge.
5/21/2011 7:00 AM 0.00 0.0 M M M
5/22/2011 7:00 AM 0.00 0.0 M M M
5/23/2011 7:00 AM 0.17 M M M M Currently not raining and 66ºF. Rain from earlier this morning.
5/24/2011 7:00 AM T M M M M Noticed a sprinkle at 5:50pm.
5/25/2011 7:00 AM 0.05 M M M M
5/26/2011 7:00 AM 0.00 0.0 M M M
5/27/2011 7:00 AM 0.00 0.0 M M M
6/6/2011 7:00 AM 0.00 0.0 M M M Observation as of 4pm yesterday.
6/7/2011 7:00 AM 0.00 0.0 M M M
6/8/2011 7:00 AM 0.00 0.0 M M M
6/9/2011 7:00 AM 0.00 0.0 M M M
6/10/2011 7:00 AM 0.07 M M M M Rain overnight. Some thunder and lightning.
6/11/2011 7:00 AM 0.00 0.0 M M M
6/12/2011 7:00 AM 0.32 M M M M
6/13/2011 7:00 AM 0.83 M M M M First heavy rain gave us .77inch. Another rain at 7:35pm gave us the other .06inch.
6/14/2011 7:00 AM 0.00 0.0 M M M Lovely cool morning, 57ºF.
6/15/2011 7:00 AM 0.00 0.0 M M M
6/16/2011 7:00 AM 0.00 0.0 M M M
6/17/2011 7:00 AM 0.59 M M M M Some sprinkles after 7am yesterday. Most rain in the evening and overnight. Heavy rain overnight with lightning and thunder.
6/18/2011 7:00 AM T M M M M Almost .01inch
6/19/2011 7:00 AM 0.00 0.0 M M M
6/20/2011 7:00 AM 0.26 M M M M Currently raining. Rain began overnight.
6/21/2011 7:00 AM 0.21 M M M M Rain yesterday morning and this morning.
6/22/2011 7:00 AM 0.00 0.0 M M M Lightning about 12:30am with very distant thunder.
6/23/2011 7:00 AM 0.00 0.0 M M M
6/24/2011 7:00 AM T M M M M
6/25/2011 7:00 AM 0.00 0.0 M M M
6/26/2011 7:00 AM 0.00 0.0 M M M
6/27/2011 7:00 AM 0.02 M M M M Currently, light rain.
6/28/2011 7:00 AM T M M M M Trace from yesterday morning.
6/29/2011 7:00 AM 0.03 M M M M
6/30/2011 7:00 AM 0.00 0.0 M M M A cool morning - 63ºF.
7/1/2011 7:00 AM 0.00 0.0 M M M
7/2/2011 7:00 AM 0.00 0.0 M M M
7/3/2011 7:10 AM 0.09 M M M M Currently raining.
7/4/2011 7:00 AM 0.05 M M M M Distant thunder/lightning.
7/5/2011 7:00 AM 0.02 M M M M Rained sometime before 6am this morning.
7/6/2011 7:00 AM 0.00 0.0 M M M
7/7/2011 7:00 AM 0.01 M M M M
7/8/2011 7:00 AM 0.00 0.0 M M M
7/9/2011 7:00 AM 0.48 M M M M
7/10/2011 7:00 AM 0.00 0.0 M M M
7/11/2011 7:00 AM 0.00 0.0 M M M
7/12/2011 7:00 AM 0.07 M M M M Most of the rain/lightning missed us. So humid this morning, that all the windows had condensation fog on the outside.
7/13/2011 7:00 AM 0.00 0.0 M M M
7/14/2011 7:00 AM 0.09 M M M M
7/15/2011 7:00 AM 0.00 0.0 M M M
7/16/2011 7:00 AM 0.00 0.0 M M M Low humidity, cool morning.
7/17/2011 7:00 AM 0.00 0.0 M M M
7/18/2011 7:00 AM 0.00 0.0 M M M Temp. 70ºF
7/19/2011 7:00 AM 0.00 0.0 M M M
7/20/2011 7:00 AM 0.46 M M M M Heavy rain last evening. May have been more overnight.
7/21/2011 7:00 AM 0.00 0.0 M M M Yesterday's high temp. 94ºF
7/22/2011 7:00 AM 0.00 0.0 M M M Heavy humidity yesterday and this morning.
7/23/2011 7:00 AM 0.00 0.0 M M M
7/24/2011 7:00 AM 0.00 0.0 M M M Yesterday was second day over 100ºF.
7/25/2011 7:00 AM 0.00 0.0 M M M Thunder and lightning at midnight, but no rain. Temp. 75ºF.
7/26/2011 7:00 AM 0.12 M M M M
7/27/2011 7:00 AM 0.00 0.0 M M M
7/28/2011 7:00 AM 0.00 0.0 M M M
7/29/2011 7:00 AM 0.00 0.0 M M M
7/30/2011 7:00 AM 0.00 0.0 M M M
7/31/2011 7:00 AM 0.00 0.0 M M M Total rain for month of July, 1.39inches, with only two soak-in rainfalls.
8/1/2011 7:00 AM 0.00 0.0 M M M
8/2/2011 7:00 AM 0.00 0.0 M M M Heard some thunder, but no rain.
8/3/2011 7:00 AM T M M M M Currently, a very light sprinkle, overcast.
8/4/2011 7:00 AM 0.29 M M M M Overcast and light sprinkles throughout the day. One rain shower at 5:25pm and more around 10:30pm. High temp. was 86ºF and humid.
8/5/2011 7:00 AM 0.00 0.0 M M M
8/6/2011 7:00 AM 0.00 0.0 M M M
8/7/2011 7:00 AM 0.03 M M M M
8/8/2011 7:00 AM 0.05 M M M M Thunder and brief rain.
8/9/2011 7:00 AM 0.00 0.0 M M M
8/10/2011 7:00 AM 0.21 M M M M Much needed rain.
8/11/2011 7:00 AM 0.00 0.0 M M M
8/12/2011 7:00 AM 0.00 0.0 M M M
8/13/2011 7:00 AM 0.00 0.0 M M M
8/14/2011 7:00 AM 0.12 M M M M Currently light rain. Temp. 73ºF
8/15/2011 7:00 AM 1.45 M M M M By 10:10am gauge held .22", by 12:40pm, gauge held .78". Still overcast this morning, but not raining.
8/16/2011 7:00 AM 0.94 M M M M Clear and cool morning. Several waves of heavy rain with thunder and lightning yesterday. Gauge held .49" by 3:30pm. Total was .94inch.
8/17/2011 7:00 AM 0.00 0.0 M M M
8/18/2011 7:00 AM 0.00 0.0 M M M
8/19/2011 7:00 AM 0.00 0.0 M M M
8/22/2011 7:00 AM 0.03 M M M M Thunder and light rain. At 6pm gauge held .03inch.
8/23/2011 7:00 AM 0.00 0.0 M M M Cool morning. Quite nice.
8/24/2011 7:00 AM 0.00 0.0 M M M Had a nice earthquake yesterday. Things fell off of shelves in every room. The only casualty was my Star Trek plate :(
8/25/2011 7:00 AM 0.00 0.0 M M M
8/26/2011 7:00 AM 0.28 M M M M At 7:40pm yesterday the gauge held .23inch. A second rain occurred between 5:30 and 6:00am this morning with the additional .05inch.
8/27/2011 7:00 AM 0.00 0.0 M M M Overcast. Clouds moving from the East. Temp 76ºF. Preparing for a dark and stormy night.
8/28/2011 7:00 AM 8.26 M M M M Currently light rain. Overcast, clouds moving from the Northwest. No damage from Irene. All surfaces covered with green leaves, 1-4 ft. branches laden with green pine cones, tulip poplar seed pods, acorns, sweetgum pods and various green nuts. Power out for 21.5 hours.
8/29/2011 7:00 AM 0.07 M M M M This .07 was the last remnants of Irene storm, bringing the total for this storm to 8.33inches. A beautiful, sunny, cool, low humidity morning.
8/30/2011 7:00 AM 0.00 0.0 M M M
8/31/2011 7:00 AM 0.00 0.0 M M M
9/1/2011 7:00 AM 0.00 0.0 M M M
9/2/2011 7:00 AM 0.01 M M M M Some early morning rain.
9/3/2011 7:00 AM 0.00 0.0 M M M
9/13/2011 7:00 AM 0.00 0.0 M M M
9/14/2011 7:00 AM 0.00 0.0 M M M
9/15/2011 7:00 AM 0.00 0.0 M M M
9/16/2011 7:00 AM T M M M M Currently 47ºF. Clear sky, beautiful moon. Overnight low was 46.4ºF.
9/17/2011 7:00 AM 0.00 0.0 M M M
9/18/2011 7:00 AM T M M M M
9/19/2011 7:00 AM 0.00 0.0 M M M
9/20/2011 7:00 AM 0.00 0.0 M M M
9/21/2011 7:00 AM 0.08 M M M M Currently foggy and 66ºF.
9/22/2011 7:00 AM T M M M M Sprinkles yesterday about 5pm, and this morning.
9/23/2011 7:00 AM 0.02 M M M M Currently, light rain and 72ºF.
9/24/2011 7:00 AM 1.87 M M M M Rain continued from 7am throughout the day with several periods of heavy rain.
9/25/2011 7:00 AM 0.01 M M M M Small amount shortly after yesterday morning's reading.
9/26/2011 7:00 AM 0.00 0.0 M M M
9/27/2011 7:00 AM 0.00 0.0 M M M
9/28/2011 7:00 AM 0.09 M M M M May have been overnight rain as well as yesterday morning. Heavy rains approaching us on radar now.
9/29/2011 7:00 AM 0.12 M M M M Rain and thunder yesterday morning. A humid night at the Calvert County Fair. Uncomfortable despite a breeze and 75ºF.
9/30/2011 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
10/3/2010 10/04/2010 7:00 AM 2 1.10 M M Currently raining. I believe there was zero precipitation for 10/3, but I didn't get home until 10/3 at 4pm and it had already started raining (.02" in the gauge).
11/2/2010 11/03/2010 7:00 AM 2 0.00 M M
5/28/2011 6/05/2011 4:00 PM 9 0.06 M M Very dry, no signs of a recent rain.
8/20/2011 8/21/2011 7:00 AM 2 0.07 M M Rain gauge contained .07inch at 6:45pm when I arrived home Saturday(8/20), as well.
9/4/2011 9/12/2011 7:00 AM 9 5.55 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
5/15/2011 7:25 PM Not much hail. Small, and at 66ºF it melted fast. NA 1/4" Pea Size Rice White Ice 10 3min no damage Intermittent True After rain vertical