Station Overview Station Location
Station Number MD-MG-63 Latitude 39.17806
Station Name Gaithersburg 3.1 NE Longitude -77.18306
County Montgomery Elevation (ft) 449



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 3.53 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 10 3.60 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 10 3.20 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 11 2.96 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 11 2.82 0.00 1 0.00 1 0.00 0 0 0 1 0.0 0 0
March 11 3.80 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 11 3.37 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 11 4.37 1.46 14 1.35 10 0.11 4 1 5 0 0.0 0 0
June 11 3.84 2.23 30 2.23 30 0.00 0 0 9 3 0.0 0 0
July 11 3.82 2.35 15 2.35 15 0.00 0 0 2 0 0.0 0 0
Aug 11 3.24 6.08 31 3.44 28 2.64 3 1 9 4 0.0 0 0
Sept 11 4.09 10.25 30 10.25 30 0.00 0 0 17 1 0.0 0 0
Water Year Totals: 42.64" 22.37" 121 days 19.62" 114 2.75" 7 days 2 42 days 9 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
10/1/2010
10/2/2010
10/3/2010
10/4/2010
10/5/2010
10/6/2010
10/7/2010
10/8/2010
10/9/2010
10/10/2010
10/11/2010
10/12/2010
10/13/2010
10/14/2010
10/15/2010
10/16/2010
10/17/2010
10/18/2010
10/19/2010
10/20/2010
10/21/2010
10/22/2010
10/23/2010
10/24/2010
10/25/2010
10/26/2010
10/27/2010
10/28/2010
10/29/2010
10/30/2010
10/31/2010
11/1/2010
11/2/2010
11/3/2010
11/4/2010
11/5/2010
11/6/2010
11/7/2010
11/8/2010
11/9/2010
11/10/2010
11/11/2010
11/12/2010
11/13/2010
11/14/2010
11/15/2010
11/16/2010
11/17/2010
11/18/2010
11/19/2010
11/20/2010
11/21/2010
11/22/2010
11/23/2010
11/24/2010
11/25/2010
11/26/2010
11/27/2010
11/28/2010
11/29/2010
11/30/2010
12/1/2010
12/2/2010
12/3/2010
12/4/2010
12/5/2010
12/6/2010
12/7/2010
12/8/2010
12/9/2010
12/10/2010
12/11/2010
12/12/2010
12/13/2010
12/14/2010
12/15/2010
12/16/2010
12/17/2010
12/18/2010
12/19/2010
12/20/2010
12/21/2010
12/22/2010
12/23/2010
12/24/2010
12/25/2010
12/26/2010
12/27/2010
12/28/2010
12/29/2010
12/30/2010
12/31/2010
Day of YearDaily PrcpMultiday Prcp
1/1/2011
1/2/2011
1/3/2011
1/4/2011
1/5/2011
1/6/2011
1/7/2011
1/8/2011
1/9/2011
1/10/2011
1/11/2011
1/12/2011
1/13/2011
1/14/2011
1/15/2011
1/16/2011
1/17/2011
1/18/2011
1/19/2011
1/20/2011
1/21/2011
1/22/2011
1/23/2011
1/24/2011
1/25/2011
1/26/2011
1/27/2011
1/28/2011
1/29/2011
1/30/2011
1/31/2011
2/1/2011
2/2/2011
2/3/2011
2/4/2011
2/5/2011
2/6/2011
2/7/2011
2/8/2011
2/9/2011
2/10/2011
2/11/2011
2/12/2011
2/13/2011
2/14/2011
2/15/2011 T
2/16/2011
2/17/2011
2/18/2011
2/19/2011
2/20/2011
2/21/2011
2/22/2011
2/23/2011
2/24/2011
2/25/2011
2/26/2011
2/27/2011
2/28/2011
3/1/2011
3/2/2011
3/3/2011
3/4/2011
3/5/2011
3/6/2011
3/7/2011
3/8/2011
3/9/2011
3/10/2011
3/11/2011
3/12/2011
3/13/2011
3/14/2011
3/15/2011
3/16/2011
3/17/2011
3/18/2011
3/19/2011
3/20/2011
3/21/2011
3/22/2011
3/23/2011
3/24/2011
3/25/2011
3/26/2011
3/27/2011
3/28/2011
3/29/2011
3/30/2011
3/31/2011
Day of YearDaily PrcpMultiday Prcp
4/1/2011
4/2/2011
4/3/2011
4/4/2011
4/5/2011
4/6/2011
4/7/2011
4/8/2011
4/9/2011
4/10/2011
4/11/2011
4/12/2011
4/13/2011
4/14/2011
4/15/2011
4/16/2011
4/17/2011
4/18/2011
4/19/2011
4/20/2011
4/21/2011
4/22/2011
4/23/2011
4/24/2011
4/25/2011
4/26/2011
4/27/2011
4/28/2011
4/29/2011
4/30/2011
5/1/2011
5/2/2011
5/3/2011
5/4/2011
5/5/2011
5/6/2011
5/7/2011
5/8/2011
5/9/2011
5/10/2011
5/11/2011
5/12/2011
5/13/2011
5/14/2011
5/15/2011
5/16/2011
5/17/2011
5/18/2011 0.59
5/19/2011 0.11
5/20/2011 0.05
5/21/2011 0.00
5/22/2011 0.00
5/23/2011 0.23
5/24/2011 **
5/25/2011 **
5/26/2011 **
5/27/2011 0.11
5/28/2011 0.37
5/29/2011 0.00
5/30/2011 0.00
5/31/2011 0.00
6/1/2011 0.00
6/2/2011 0.00
6/3/2011 0.00
6/4/2011 0.00
6/5/2011 0.00
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 0.00
6/9/2011 0.00
6/10/2011 0.14
6/11/2011 0.00
6/12/2011 0.00
6/13/2011 0.46
6/14/2011 0.00
6/15/2011 T
6/16/2011 0.00
6/17/2011 0.35
6/18/2011 1.02
6/19/2011 T
6/20/2011 0.18
6/21/2011 0.03
6/22/2011 0.02
6/23/2011 0.01
6/24/2011 0.00
6/25/2011 0.00
6/26/2011 0.00
6/27/2011 0.02
6/28/2011 T
6/29/2011 0.00
6/30/2011 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.00
7/2/2011
7/3/2011
7/4/2011
7/5/2011
7/6/2011
7/7/2011
7/8/2011
7/9/2011
7/10/2011
7/11/2011
7/12/2011
7/13/2011
7/14/2011
7/15/2011
7/16/2011
7/17/2011
7/18/2011 0.00
7/19/2011 0.00
7/20/2011 0.36
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 1.99
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 0.09
8/3/2011 T
8/4/2011 0.12
8/5/2011 0.01
8/6/2011 0.00
8/7/2011 0.51
8/8/2011 0.14
8/9/2011 0.00
8/10/2011 0.00
8/11/2011 0.00
8/12/2011 0.00
8/13/2011 **
8/14/2011 **
8/15/2011 2.64
8/16/2011 0.00
8/17/2011 0.00
8/18/2011 0.00
8/19/2011 0.08
8/20/2011 T
8/21/2011 0.00
8/22/2011 T
8/23/2011 0.00
8/24/2011 0.00
8/25/2011 0.00
8/26/2011 0.06
8/27/2011 T
8/28/2011 2.25
8/29/2011 0.18
8/30/2011 0.00
8/31/2011 0.00
9/1/2011 0.00
9/2/2011 0.34
9/3/2011 0.00
9/4/2011 0.11
9/5/2011 0.03
9/6/2011 1.70
9/7/2011 0.99
9/8/2011 2.55
9/9/2011 1.86
9/10/2011 0.26
9/11/2011 0.00
9/12/2011 0.47
9/13/2011 0.00
9/14/2011 0.00
9/15/2011 1.00
9/16/2011 0.08
9/17/2011 0.00
9/18/2011 0.00
9/19/2011 0.00
9/20/2011 0.00
9/21/2011 0.12
9/22/2011 0.08
9/23/2011 0.00
9/24/2011 0.37
9/25/2011 0.02
9/26/2011 0.02
9/27/2011 0.00
9/28/2011 T
9/29/2011 0.25
9/30/2011 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
2/15/2011 7:00 AM T M M M M
5/18/2011 7:00 AM 0.59 M M M M About 0.4" came from a 15-20 minute downpour around 3:00 P.M. EDT on 5/17.
5/19/2011 7:00 AM 0.11 M M M M
5/20/2011 7:00 AM 0.05 M M M M
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 0.23 M M M M Most of the rain fell overnight.
5/28/2011 7:00 AM 0.37 M M M M
5/29/2011 7:00 AM 0.00 0.0 M M M There was a minor trace from a sun shower in the afternoon.
5/30/2011 7:00 AM 0.00 0.0 M M M
5/31/2011 7:00 AM 0.00 0.0 M M M
6/1/2011 7:00 AM 0.00 0.0 M M M
6/2/2011 7:00 AM 0.00 0.0 M M M
6/3/2011 7:00 AM 0.00 0.0 M M M
6/4/2011 7:00 AM 0.00 0.0 M M M
6/5/2011 7:00 AM 0.00 0.0 M M M
6/6/2011 7:00 AM 0.00 0.0 M M M
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 0.14 M M M M Most of the rain came from a thunder shower around 7:00 PM Thursday evening.
6/11/2011 7:00 AM 0.00 0.0 M M M
6/12/2011 7:00 AM 0.00 0.0 M M M
6/13/2011 7:00 AM 0.46 M M M M
6/14/2011 7:00 AM 0.00 0.0 M M M
6/15/2011 7:00 AM T M M M M
6/16/2011 7:00 AM 0.00 0.0 M M M
6/17/2011 7:00 AM 0.35 M M M M
6/18/2011 7:00 AM 1.02 M M M M
6/19/2011 7:00 AM T M M M M
6/20/2011 7:00 AM 0.18 M M M M
6/21/2011 7:00 AM 0.03 M M M M
6/22/2011 7:00 AM 0.02 M M M M
6/23/2011 7:00 AM 0.01 M M M M
6/24/2011 7:00 AM 0.00 0.0 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
6/28/2011 7:00 AM T M M M M
6/29/2011 7:00 AM 0.00 0.0 M M M
6/30/2011 7:00 AM 0.00 0.0 M M M
7/1/2011 7:00 AM 0.00 0.0 M M M This will be my last observation for 2 weeks as I am going out of town.
7/18/2011 7:00 AM 0.00 0.0 M M M Back from vacation.
7/19/2011 7:00 AM 0.00 0.0 M M M
7/20/2011 7:00 AM 0.36 M M M M
7/21/2011 7:00 AM 0.00 0.0 M M M
7/22/2011 7:00 AM 0.00 0.0 M M M
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
7/25/2011 7:00 AM 0.00 0.0 M M M
7/26/2011 7:00 AM 1.99 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
8/1/2011 7:00 AM 0.00 0.0 M M M
8/2/2011 7:00 AM 0.09 M M M M
8/3/2011 7:00 AM T M M M M
8/4/2011 7:00 AM 0.12 M M M M
8/5/2011 7:00 AM 0.01 M M M M
8/6/2011 7:00 AM 0.00 0.0 M M M
8/7/2011 7:00 AM 0.51 M M M M
8/8/2011 7:00 AM 0.14 M M M M
8/9/2011 7:00 AM 0.00 0.0 M M M
8/10/2011 7:00 AM 0.00 0.0 M M M
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
8/16/2011 7:00 AM 0.00 0.0 M M M
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 0.08 M M M M
8/20/2011 7:00 AM T M M M M
8/21/2011 7:00 AM 0.00 0.0 M M M
8/22/2011 7:00 AM T M M M M Amazingly, the line of storms missed our house. Seemed to flare up just to the east of us.
8/23/2011 7:00 AM 0.00 0.0 M M M
8/24/2011 7:00 AM 0.00 0.0 M M M
8/25/2011 7:00 AM 0.00 0.0 M M M
8/26/2011 7:00 AM 0.06 M M M M
8/27/2011 7:00 AM T M M M M
8/28/2011 7:00 AM 2.25 M M M M
8/29/2011 7:00 AM 0.18 M M M M
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 0.34 M M M M Some very loud thunder around 2 am last night.
9/3/2011 7:00 AM 0.00 0.0 M M M
9/4/2011 7:00 AM 0.11 M M M M
9/5/2011 7:00 AM 0.03 M M M M
9/6/2011 7:00 AM 1.70 M M M M
9/7/2011 7:00 AM 0.99 M M M M
9/8/2011 7:00 AM 2.55 M M M M
9/9/2011 7:00 AM 1.86 M M M M
9/10/2011 7:00 AM 0.26 M M M M
9/11/2011 7:00 AM 0.00 0.0 M M M
9/12/2011 7:00 AM 0.47 M 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 1.00 M M M M
9/16/2011 7:00 AM 0.08 M M M M
9/17/2011 7:00 AM 0.00 0.0 M M M
9/18/2011 7:00 AM 0.00 0.0 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 0.12 M M M M
9/22/2011 7:00 AM 0.08 M M M M
9/23/2011 7:00 AM 0.00 0.0 M M M
9/24/2011 7:00 AM 0.37 M M M M
9/25/2011 7:00 AM 0.02 M M M M
9/26/2011 7:00 AM 0.02 M M M M
9/27/2011 7:00 AM 0.00 0.0 M M M
9/28/2011 7:00 AM T M M M M
9/29/2011 7:00 AM 0.25 M M M M
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
5/24/2011 5/27/2011 7:00 AM 4 0.11 M M
8/13/2011 8/15/2011 6:40 AM 3 2.64 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