Station Overview Station Location
Station Number MD-MG-72 Latitude 39.192716
Station Name Boyds 1.3 WNW Longitude -77.3339589
County Montgomery Elevation (ft) 438



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 11 3.46 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 11 3.40 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 11 3.13 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 12 2.67 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 12 2.71 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 12 3.80 0.02 4 0.02 4 0.00 0 0 1 0 0.0 0 0
April 12 3.31 2.02 30 2.02 30 0.00 0 0 8 2 0.0 0 0
May 12 4.69 4.23 31 4.23 31 0.00 0 0 15 2 0.0 0 0
June 12 3.83 2.60 29 2.60 24 0.00 5 0 7 2 0.0 0 0
July 12 3.75 3.90 30 1.67 20 2.23 10 1 10 0 0.0 0 0
Aug 12 3.18 5.13 30 2.90 17 2.23 13 1 10 1 0.0 0 0
Sept 12 4.11 3.12 30 3.12 30 0.00 0 0 12 0 0.0 0 0
Water Year Totals: 42.04" 21.02" 184 days 16.56" 156 4.46" 28 days 2 63 days 7 days 0.0" 0 days 0 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
10/1/2011
10/2/2011
10/3/2011
10/4/2011
10/5/2011
10/6/2011
10/7/2011
10/8/2011
10/9/2011
10/10/2011
10/11/2011
10/12/2011
10/13/2011
10/14/2011
10/15/2011
10/16/2011
10/17/2011
10/18/2011
10/19/2011
10/20/2011
10/21/2011
10/22/2011
10/23/2011
10/24/2011
10/25/2011
10/26/2011
10/27/2011
10/28/2011
10/29/2011
10/30/2011
10/31/2011
11/1/2011
11/2/2011
11/3/2011
11/4/2011
11/5/2011
11/6/2011
11/7/2011
11/8/2011
11/9/2011
11/10/2011
11/11/2011
11/12/2011
11/13/2011
11/14/2011
11/15/2011
11/16/2011
11/17/2011
11/18/2011
11/19/2011
11/20/2011
11/21/2011
11/22/2011
11/23/2011
11/24/2011
11/25/2011
11/26/2011
11/27/2011
11/28/2011
11/29/2011
11/30/2011
12/1/2011
12/2/2011
12/3/2011
12/4/2011
12/5/2011
12/6/2011
12/7/2011
12/8/2011
12/9/2011
12/10/2011
12/11/2011
12/12/2011
12/13/2011
12/14/2011
12/15/2011
12/16/2011
12/17/2011
12/18/2011
12/19/2011
12/20/2011
12/21/2011
12/22/2011
12/23/2011
12/24/2011
12/25/2011
12/26/2011
12/27/2011
12/28/2011
12/29/2011
12/30/2011
12/31/2011
Day of YearDaily PrcpMultiday Prcp
1/1/2012
1/2/2012
1/3/2012
1/4/2012
1/5/2012
1/6/2012
1/7/2012
1/8/2012
1/9/2012
1/10/2012
1/11/2012
1/12/2012
1/13/2012
1/14/2012
1/15/2012
1/16/2012
1/17/2012
1/18/2012
1/19/2012
1/20/2012
1/21/2012
1/22/2012
1/23/2012
1/24/2012
1/25/2012
1/26/2012
1/27/2012
1/28/2012
1/29/2012
1/30/2012
1/31/2012
2/1/2012
2/2/2012
2/3/2012
2/4/2012
2/5/2012
2/6/2012
2/7/2012
2/8/2012
2/9/2012
2/10/2012
2/11/2012
2/12/2012
2/13/2012
2/14/2012
2/15/2012
2/16/2012
2/17/2012
2/18/2012
2/19/2012
2/20/2012
2/21/2012
2/22/2012
2/23/2012
2/24/2012
2/25/2012
2/26/2012
2/27/2012
2/28/2012
2/29/2012
3/1/2012
3/2/2012
3/3/2012
3/4/2012
3/5/2012
3/6/2012
3/7/2012
3/8/2012
3/9/2012
3/10/2012
3/11/2012
3/12/2012
3/13/2012
3/14/2012
3/15/2012
3/16/2012
3/17/2012
3/18/2012
3/19/2012
3/20/2012
3/21/2012
3/22/2012
3/23/2012
3/24/2012
3/25/2012
3/26/2012
3/27/2012
3/28/2012 0.00
3/29/2012 0.02
3/30/2012 0.00
3/31/2012 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2012 0.00
4/2/2012 0.14
4/3/2012 0.00
4/4/2012 0.00
4/5/2012 0.00
4/6/2012 0.00
4/7/2012 0.00
4/8/2012 0.00
4/9/2012 0.00
4/10/2012 0.00
4/11/2012 0.00
4/12/2012 0.02
4/13/2012 0.00
4/14/2012 0.00
4/15/2012 T
4/16/2012 0.00
4/17/2012 0.00
4/18/2012 0.00
4/19/2012 0.29
4/20/2012 0.00
4/21/2012 0.00
4/22/2012 0.16
4/23/2012 1.04
4/24/2012 0.10
4/25/2012 0.00
4/26/2012 T
4/27/2012 0.01
4/28/2012 0.00
4/29/2012 0.26
4/30/2012 0.00
5/1/2012 0.07
5/2/2012 0.06
5/3/2012 T
5/4/2012 0.12
5/5/2012 0.00
5/6/2012 T
5/7/2012 0.00
5/8/2012 0.00
5/9/2012 0.28
5/10/2012 0.30
5/11/2012 0.00
5/12/2012 0.00
5/13/2012 0.00
5/14/2012 0.03
5/15/2012 1.52
5/16/2012 0.01
5/17/2012 0.00
5/18/2012 0.00
5/19/2012 0.00
5/20/2012 0.00
5/21/2012 0.09
5/22/2012 0.55
5/23/2012 0.07
5/24/2012 0.23
5/25/2012 0.12
5/26/2012 0.00
5/27/2012 0.00
5/28/2012 0.11
5/29/2012 0.00
5/30/2012 0.67
5/31/2012 0.00
6/1/2012 0.00
6/2/2012 1.97
6/3/2012 0.00
6/4/2012 0.02
6/5/2012 T
6/6/2012 0.00
6/7/2012 0.00
6/8/2012 T
6/9/2012 0.00
6/10/2012 0.00
6/11/2012 0.00
6/12/2012 0.04
6/13/2012 0.42
6/14/2012 0.00
6/15/2012 0.00
6/16/2012 0.00
6/17/2012
6/18/2012 0.02
6/19/2012 0.06
6/20/2012 0.00
6/21/2012 0.00
6/22/2012 0.00
6/23/2012 0.07
6/24/2012 0.00
6/25/2012 0.00
6/26/2012 **
6/27/2012 **
6/28/2012 **
6/29/2012 **
6/30/2012 **
Day of YearDaily PrcpMultiday Prcp
7/1/2012 **
7/2/2012 **
7/3/2012 **
7/4/2012 **
7/5/2012 **
7/6/2012 **
7/7/2012 **
7/8/2012 **
7/9/2012 **
7/10/2012 2.23
7/11/2012 0.00
7/12/2012
7/13/2012 0.00
7/14/2012 0.38
7/15/2012 0.02
7/16/2012 0.06
7/17/2012 0.05
7/18/2012 0.00
7/19/2012 0.01
7/20/2012 0.71
7/21/2012 0.17
7/22/2012 0.23
7/23/2012 0.02
7/24/2012 0.00
7/25/2012 0.02
7/26/2012 0.00
7/27/2012 0.00
7/28/2012 0.00
7/29/2012 0.00
7/30/2012 0.00
7/31/2012 0.00
8/1/2012 0.27
8/2/2012 0.05
8/3/2012 0.00
8/4/2012 0.00
8/5/2012 0.00
8/6/2012 0.07
8/7/2012 **
8/8/2012 **
8/9/2012 **
8/10/2012 **
8/11/2012 **
8/12/2012 **
8/13/2012 **
8/14/2012 **
8/15/2012 **
8/16/2012 **
8/17/2012 **
8/18/2012 **
8/19/2012 2.23
8/20/2012 1.08
8/21/2012 0.62
8/22/2012 T
8/23/2012 0.30
8/24/2012 0.00
8/25/2012
8/26/2012 0.02
8/27/2012 0.42
8/28/2012 0.06
8/29/2012 0.01
8/30/2012 0.00
8/31/2012 0.00
9/1/2012 0.00
9/2/2012 0.01
9/3/2012 0.06
9/4/2012 0.03
9/5/2012 0.00
9/6/2012 0.00
9/7/2012 0.03
9/8/2012 0.00
9/9/2012 0.59
9/10/2012 0.00
9/11/2012 0.00
9/12/2012 0.00
9/13/2012 0.00
9/14/2012 0.00
9/15/2012 0.00
9/16/2012 0.00
9/17/2012 0.00
9/18/2012 0.22
9/19/2012 1.09
9/20/2012 0.00
9/21/2012 0.00
9/22/2012 0.00
9/23/2012 0.17
9/24/2012 0.00
9/25/2012 0.00
9/26/2012 0.32
9/27/2012 0.02
9/28/2012 0.57
9/29/2012 0.01
9/30/2012 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
3/28/2012 6:58 AM 0.00 0.0 M M M
3/29/2012 6:59 AM 0.02 M M M M
3/30/2012 7:01 AM 0.00 0.0 M M M
3/31/2012 7:00 AM 0.00 0.0 M M M
4/1/2012 6:54 AM 0.00 0.0 M M M
4/2/2012 6:50 AM 0.14 M M M M
4/3/2012 7:02 AM 0.00 0.0 M M M
4/4/2012 6:58 AM 0.00 0.0 M M M
4/5/2012 6:58 AM 0.00 0.0 M M M
4/6/2012 6:44 AM 0.00 0.0 M M M
4/7/2012 6:54 AM 0.00 0.0 M M M
4/8/2012 7:00 AM 0.00 0.0 M M M
4/9/2012 6:52 AM 0.00 0.0 M M M
4/10/2012 7:02 AM 0.00 0.0 M M M
4/11/2012 7:01 AM 0.00 0.0 M M M
4/12/2012 6:52 AM 0.02 M M M M
4/13/2012 6:49 AM 0.00 0.0 M M M
4/14/2012 6:53 AM 0.00 0.0 M M M
4/15/2012 7:01 AM T M M M M
4/16/2012 7:10 AM 0.00 0.0 M M M
4/17/2012 6:50 AM 0.00 0.0 M M M
4/18/2012 6:51 AM 0.00 0.0 M M M
4/19/2012 6:56 AM 0.29 M M M M
4/20/2012 6:58 AM 0.00 0.0 M M M
4/21/2012 6:55 AM 0.00 0.0 M M M
4/22/2012 6:57 AM 0.16 M M M M
4/23/2012 7:02 AM 1.04 M M M M
4/24/2012 6:58 AM 0.10 M M M M
4/25/2012 6:50 AM 0.00 0.0 M M M
4/26/2012 6:54 AM T M M M M
4/27/2012 7:00 AM 0.01 M M M M
4/28/2012 6:57 AM 0.00 0.0 M M M
4/29/2012 6:56 AM 0.26 M M M M
4/30/2012 7:00 AM 0.00 0.0 M M M
5/1/2012 6:46 AM 0.07 M M M M
5/2/2012 6:48 AM 0.06 M M M M
5/3/2012 6:51 AM T M M M M
5/4/2012 6:53 AM 0.12 M M M M
5/5/2012 6:40 AM 0.00 0.0 M M M
5/6/2012 6:55 AM T M M M M
5/7/2012 6:59 AM 0.00 0.0 M M M
5/8/2012 7:00 AM 0.00 0.0 M M M
5/9/2012 7:05 AM 0.28 M M M M
5/10/2012 6:53 AM 0.30 M M M M
5/11/2012 6:41 AM 0.00 0.0 M M M
5/12/2012 7:00 AM 0.00 0.0 M M M
5/13/2012 6:56 AM 0.00 0.0 M M M
5/14/2012 6:56 AM 0.03 M M M M
5/15/2012 6:55 AM 1.52 M M M M
5/16/2012 6:54 AM 0.01 M M M M
5/17/2012 6:53 AM 0.00 0.0 M M M
5/18/2012 7:02 AM 0.00 0.0 M M M
5/19/2012 6:49 AM 0.00 0.0 M M M
5/20/2012 7:01 AM 0.00 0.0 M M M
5/21/2012 7:00 AM 0.09 M M M M
5/22/2012 6:51 AM 0.55 M M M M
5/23/2012 6:59 AM 0.07 M M M M
5/24/2012 7:00 AM 0.23 M M M M
5/25/2012 6:49 AM 0.12 M M M M
5/26/2012 7:37 AM 0.00 0.0 M M M
5/27/2012 7:34 AM 0.00 0.0 M M M
5/28/2012 6:51 AM 0.11 M M M M
5/29/2012 6:56 AM 0.00 0.0 M M M
5/30/2012 7:02 AM 0.67 M M M M
5/31/2012 7:01 AM 0.00 0.0 M M M
6/1/2012 6:52 AM 0.00 0.0 M M M
6/2/2012 6:50 AM 1.97 M M M M Most of rain (over 1") fell between about 3pm and 4pm. Two tornado warnings accompanying this storm system for our local area (one around 3pm, other around 9pm); cell at 3pm came right over the top of us, blackened sky, torrential rain, strong rotation (according to NOAA). Funnel cloud observed by local law enforcement about 15 miles north of us (from 3pm cell). 9pm cell went just to the north of us. Overall damage to our property: minor flooding, several tree limbs (10-15' long, 4-6" diameter) down from wind. Power outage for several hours.
6/3/2012 7:35 AM 0.00 0.0 M M M
6/4/2012 7:02 AM 0.02 M M M M
6/5/2012 6:51 AM T M M M M
6/6/2012 7:12 AM 0.00 0.0 M M M
6/7/2012 6:48 AM 0.00 0.0 M M M
6/8/2012 6:44 AM T M M M M
6/9/2012 7:09 AM 0.00 0.0 M M M
6/10/2012 7:32 AM 0.00 0.0 M M M
6/11/2012 6:47 AM 0.00 0.0 M M M
6/12/2012 7:02 AM 0.04 M M M M
6/13/2012 7:08 AM 0.42 M M M M
6/14/2012 7:00 AM 0.00 0.0 M M M
6/15/2012 6:59 AM 0.00 0.0 M M M
6/16/2012 8:05 AM 0.00 0.0 M M M
6/18/2012 8:07 AM 0.02 M M M M
6/19/2012 7:06 AM 0.06 M M M M
6/20/2012 7:09 AM 0.00 0.0 M M M
6/21/2012 7:29 AM 0.00 0.0 M M M
6/22/2012 7:47 AM 0.00 0.0 M M M
6/23/2012 7:23 AM 0.07 M M M M
6/24/2012 7:05 AM 0.00 0.0 M M M
6/25/2012 7:54 AM 0.00 0.0 M M M
7/11/2012 6:56 AM 0.00 0.0 M M M
7/13/2012 7:05 AM 0.00 0.0 M M M
7/14/2012 6:58 AM 0.38 M M M M
7/15/2012 7:47 AM 0.02 M M M M
7/16/2012 7:04 AM 0.06 M M M M
7/17/2012 7:12 AM 0.05 M M M M
7/18/2012 7:31 AM 0.00 0.0 M M M
7/19/2012 7:12 AM 0.01 M M M M
7/20/2012 7:18 AM 0.71 M M M M
7/21/2012 7:16 AM 0.17 M M M M
7/22/2012 7:41 AM 0.23 M M M M
7/23/2012 7:00 AM 0.02 M M M M
7/24/2012 6:36 AM 0.00 0.0 M M M
7/25/2012 7:33 AM 0.02 M M M M
7/26/2012 7:43 AM 0.00 0.0 M M M
7/27/2012 7:21 AM 0.00 0.0 M M M
7/28/2012 7:07 AM 0.00 0.0 M M M
7/29/2012 7:16 AM 0.00 0.0 M M M
7/30/2012 7:48 AM 0.00 0.0 M M M
7/31/2012 8:06 AM 0.00 0.0 M M M
8/1/2012 7:59 AM 0.27 M M M M
8/2/2012 7:01 AM 0.05 M M M M
8/3/2012 8:34 AM 0.00 0.0 M M M
8/4/2012 8:16 AM 0.00 0.0 M M M
8/5/2012 7:21 AM 0.00 0.0 M M M
8/6/2012 7:34 AM 0.07 M M M M
8/20/2012 8:03 AM 1.08 M M M M
8/21/2012 7:21 AM 0.62 M M M M
8/22/2012 7:00 AM T M M M M
8/23/2012 8:13 AM 0.30 M M M M
8/24/2012 7:00 AM 0.00 0.0 M M M
8/26/2012 8:06 AM 0.02 M M M M
8/27/2012 6:37 AM 0.42 M M M M
8/28/2012 6:57 AM 0.06 M M M M
8/29/2012 6:56 AM 0.01 M M M M
8/30/2012 7:07 AM 0.00 0.0 M M M
8/31/2012 7:04 AM 0.00 0.0 M M M
9/1/2012 8:29 AM 0.00 0.0 M M M
9/2/2012 8:36 AM 0.01 M M M M
9/3/2012 7:04 AM 0.06 M M M M
9/4/2012 6:44 AM 0.03 M M M M
9/5/2012 7:27 AM 0.00 0.0 M M M
9/6/2012 7:17 AM 0.00 0.0 M M M
9/7/2012 7:11 AM 0.03 M M M M
9/8/2012 7:33 AM 0.00 0.0 M M M
9/9/2012 7:01 AM 0.59 M M M M
9/10/2012 7:08 AM 0.00 0.0 M M M
9/11/2012 7:35 AM 0.00 0.0 M M M
9/12/2012 8:22 AM 0.00 0.0 M M M
9/13/2012 7:17 AM 0.00 0.0 M M M
9/14/2012 7:00 AM 0.00 0.0 M M M
9/15/2012 7:37 AM 0.00 0.0 M M M
9/16/2012 8:10 AM 0.00 0.0 M M M
9/17/2012 7:19 AM 0.00 0.0 M M M
9/18/2012 7:09 AM 0.22 M M M M
9/19/2012 7:05 AM 1.09 M M M M
9/20/2012 7:08 AM 0.00 0.0 M M M
9/21/2012 7:05 AM 0.00 0.0 M M M
9/22/2012 8:32 AM 0.00 0.0 M M M
9/23/2012 7:41 AM 0.17 M M M M
9/24/2012 6:47 AM 0.00 0.0 M M M
9/25/2012 7:03 AM 0.00 0.0 M M M
9/26/2012 7:03 AM 0.32 M M M M
9/27/2012 7:08 AM 0.02 M M M M
9/28/2012 7:12 AM 0.57 M M M M
9/29/2012 7:26 AM 0.01 M M M M
9/30/2012 7:49 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
6/26/2012 7/10/2012 6:47 AM 15 2.23 M M Returned from vacation to find damage from June 29th Derecho storm. Numerous trees down on our property and gutters ripped off house. Housesitter said we were without power for 4 days after storm.
8/7/2012 8/19/2012 8:23 AM 13 2.23 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
4/11/2012 7:05 PM I don't have a hail pad. Went outside and measured/observed hail. Rice Rice Rice Clear Ice 4 1min no damage Continuous True Same time as rain Same time as smaller hail vertical