Station Overview Station Location
Station Number MD-MG-1 Latitude 39.1626
Station Name Montgomery Village 1.3 SSW Longitude -77.2002
County Montgomery Elevation (ft) 364



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 09 3.50 4.10 16 4.10 16 0.00 0 0 9 0 0.0 0 0
Nov 09 3.58 1.11 12 1.11 4 0.00 8 0 4 0 0.0 0 0
Dec 09 3.17 5.11 22 1.46 9 3.65 13 1 2 0 13.0 1 2
Jan 10 2.93 2.18 31 2.18 31 0.00 0 0 10 2 8.4 2 1
Feb 10 2.80 4.37 26 4.37 26 0.00 0 0 9 1 49.5 5 1
March 10 3.78 3.01 13 3.01 13 0.00 0 0 6 0 0.0 0 0
April 10 3.35 0.31 10 0.31 10 0.00 0 0 1 0 0.0 0 0
May 10 4.36 0.01 1 0.01 1 0.00 0 0 1 0 0.0 0 0
June 10 3.83 1.20 2 1.20 2 0.00 0 0 2 0 0.0 0 0
July 10 3.81 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 10 3.23 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 10 4.07 4.15 4 4.15 4 0.00 0 0 3 0 0.0 0 0
Water Year Totals: 42.41" 25.55" 137 days 21.90" 116 3.65" 21 days 1 47 days 3 days 70.9" 8 days 4 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
10/1/2009 0.00
10/2/2009 0.04
10/3/2009 0.00
10/4/2009 0.00
10/5/2009 0.00
10/6/2009 0.05
10/7/2009 0.00
10/8/2009 0.00
10/9/2009 0.00
10/10/2009 0.02
10/11/2009
10/12/2009
10/13/2009
10/14/2009
10/15/2009 0.17
10/16/2009 0.81
10/17/2009
10/18/2009
10/19/2009
10/20/2009
10/21/2009
10/22/2009
10/23/2009
10/24/2009 0.05
10/25/2009 1.14
10/26/2009
10/27/2009 0.42
10/28/2009 1.40
10/29/2009
10/30/2009
10/31/2009
11/1/2009 0.22
11/2/2009
11/3/2009
11/4/2009
11/5/2009
11/6/2009 0.04
11/7/2009
11/8/2009
11/9/2009
11/10/2009
11/11/2009 0.08
11/12/2009 0.77
11/13/2009
11/14/2009
11/15/2009
11/16/2009
11/17/2009
11/18/2009
11/19/2009
11/20/2009
11/21/2009
11/22/2009
11/23/2009 **
11/24/2009 **
11/25/2009 **
11/26/2009 **
11/27/2009 **
11/28/2009 **
11/29/2009 **
11/30/2009 **
12/1/2009 **
12/2/2009 **
12/3/2009 **
12/4/2009 **
12/5/2009 **
12/6/2009 **
12/7/2009 **
12/8/2009 **
12/9/2009 **
12/10/2009 **
12/11/2009 **
12/12/2009 **
12/13/2009 3.65
12/14/2009 0.00
12/15/2009 0.00
12/16/2009 0.00
12/17/2009 0.00
12/18/2009 0.00
12/19/2009 0.45
12/20/2009 1.01
12/21/2009 0.00
12/22/2009 0.00
12/23/2009
12/24/2009
12/25/2009
12/26/2009
12/27/2009
12/28/2009
12/29/2009
12/30/2009
12/31/2009
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.30
1/2/2010 0.00
1/3/2010 0.00
1/4/2010 0.00
1/5/2010 T
1/6/2010 T
1/7/2010 0.00
1/8/2010 0.12
1/9/2010 0.00
1/10/2010 0.00
1/11/2010 0.00
1/12/2010 0.00
1/13/2010 0.00
1/14/2010 0.00
1/15/2010 0.00
1/16/2010 0.00
1/17/2010 0.00
1/18/2010 0.74
1/19/2010 0.00
1/20/2010 0.04
1/21/2010 0.08
1/22/2010 0.15
1/23/2010 0.00
1/24/2010 0.14
1/25/2010 0.34
1/26/2010 0.02
1/27/2010 0.00
1/28/2010 0.00
1/29/2010 0.00
1/30/2010 0.00
1/31/2010 0.25
2/1/2010 0.00
2/2/2010 0.31
2/3/2010 0.02
2/4/2010 0.00
2/5/2010 0.00
2/6/2010 2.26
2/7/2010 0.36
2/8/2010 0.00
2/9/2010 0.00
2/10/2010 0.61
2/11/2010 0.55
2/12/2010 0.00
2/13/2010 0.00
2/14/2010 0.00
2/15/2010 0.00
2/16/2010 0.04
2/17/2010 0.00
2/18/2010 0.00
2/19/2010 0.00
2/20/2010 0.00
2/21/2010 0.00
2/22/2010 0.00
2/23/2010 0.18
2/24/2010 0.00
2/25/2010 0.04
2/26/2010 T
2/27/2010
2/28/2010
3/1/2010
3/2/2010
3/3/2010
3/4/2010
3/5/2010
3/6/2010
3/7/2010
3/8/2010
3/9/2010
3/10/2010
3/11/2010
3/12/2010 0.42
3/13/2010 0.42
3/14/2010 1.20
3/15/2010
3/16/2010
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.00
3/20/2010 0.00
3/21/2010 0.00
3/22/2010 0.00
3/23/2010 0.38
3/24/2010 0.04
3/25/2010 0.00
3/26/2010 0.55
3/27/2010
3/28/2010
3/29/2010
3/30/2010
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.00
4/2/2010 0.00
4/3/2010 0.00
4/4/2010 0.00
4/5/2010 0.00
4/6/2010 0.00
4/7/2010 0.00
4/8/2010 0.00
4/9/2010 0.31
4/10/2010 0.00
4/11/2010
4/12/2010
4/13/2010
4/14/2010
4/15/2010
4/16/2010
4/17/2010
4/18/2010
4/19/2010
4/20/2010
4/21/2010
4/22/2010
4/23/2010
4/24/2010
4/25/2010
4/26/2010
4/27/2010
4/28/2010
4/29/2010
4/30/2010
5/1/2010
5/2/2010
5/3/2010
5/4/2010
5/5/2010
5/6/2010
5/7/2010
5/8/2010
5/9/2010 0.01
5/10/2010
5/11/2010
5/12/2010
5/13/2010
5/14/2010
5/15/2010
5/16/2010
5/17/2010
5/18/2010
5/19/2010
5/20/2010
5/21/2010
5/22/2010
5/23/2010
5/24/2010
5/25/2010
5/26/2010
5/27/2010
5/28/2010
5/29/2010
5/30/2010
5/31/2010
6/1/2010
6/2/2010
6/3/2010
6/4/2010
6/5/2010
6/6/2010
6/7/2010
6/8/2010
6/9/2010
6/10/2010
6/11/2010
6/12/2010
6/13/2010
6/14/2010
6/15/2010
6/16/2010
6/17/2010
6/18/2010
6/19/2010
6/20/2010
6/21/2010
6/22/2010
6/23/2010
6/24/2010
6/25/2010
6/26/2010
6/27/2010
6/28/2010 0.20
6/29/2010 1.00
6/30/2010
Day of YearDaily PrcpMultiday Prcp
7/1/2010
7/2/2010
7/3/2010
7/4/2010
7/5/2010
7/6/2010
7/7/2010
7/8/2010
7/9/2010
7/10/2010
7/11/2010
7/12/2010
7/13/2010
7/14/2010
7/15/2010
7/16/2010
7/17/2010
7/18/2010
7/19/2010
7/20/2010
7/21/2010
7/22/2010
7/23/2010
7/24/2010
7/25/2010
7/26/2010
7/27/2010
7/28/2010
7/29/2010
7/30/2010
7/31/2010
8/1/2010
8/2/2010
8/3/2010
8/4/2010
8/5/2010
8/6/2010
8/7/2010
8/8/2010
8/9/2010
8/10/2010
8/11/2010
8/12/2010
8/13/2010
8/14/2010
8/15/2010
8/16/2010
8/17/2010
8/18/2010
8/19/2010
8/20/2010
8/21/2010
8/22/2010
8/23/2010
8/24/2010
8/25/2010
8/26/2010
8/27/2010
8/28/2010
8/29/2010
8/30/2010
8/31/2010
9/1/2010
9/2/2010
9/3/2010
9/4/2010
9/5/2010
9/6/2010
9/7/2010
9/8/2010
9/9/2010
9/10/2010
9/11/2010
9/12/2010
9/13/2010
9/14/2010
9/15/2010
9/16/2010
9/17/2010
9/18/2010
9/19/2010
9/20/2010
9/21/2010
9/22/2010
9/23/2010
9/24/2010
9/25/2010
9/26/2010
9/27/2010 0.26
9/28/2010 1.40
9/29/2010 0.00
9/30/2010 2.49



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 7:00 AM 0.00 0.0 M M M
10/2/2009 11:59 PM 0.04 0.0 0.00 0.0 0.00
10/3/2009 7:00 AM 0.00 0.0 M M M
10/4/2009 7:00 AM 0.00 0.0 M M M
10/5/2009 7:00 AM 0.00 0.0 M M M
10/6/2009 11:59 PM 0.05 0.0 0.00 0.0 0.00
10/7/2009 7:00 AM 0.00 0.0 M M M
10/8/2009 7:00 AM 0.00 0.0 M M M
10/9/2009 7:00 AM 0.00 0.0 M M M
10/10/2009 11:59 PM 0.02 0.0 0.00 0.0 0.00
10/15/2009 6:00 AM 0.17 0.0 0.00 0.0 M
10/16/2009 6:00 AM 0.81 0.0 0.00 0.0 0.00
10/24/2009 7:00 AM 0.05 0.0 0.00 0.0 0.00
10/25/2009 7:00 AM 1.14 0.0 0.00 0.0 0.00
10/27/2009 7:00 AM 0.42 0.0 0.00 0.0 0.00
10/28/2009 7:00 AM 1.40 0.0 0.00 0.0 0.00
11/1/2009 4:00 AM 0.22 0.0 0.00 0.0 0.00
11/6/2009 7:00 AM 0.04 0.0 0.00 0.0 0.00 A couple rain showers in the afternoon and evening hours
11/11/2009 7:00 AM 0.08 0.0 0.00 0.0 0.00
11/12/2009 7:00 AM 0.77 0.0 0.00 0.0 0.00 Light rain at the time of observation
12/14/2009 7:00 AM 0.00 0.0 M M M
12/15/2009 7:00 AM 0.00 0.0 M M M
12/16/2009 7:00 AM 0.00 0.0 M M M
12/17/2009 7:00 AM 0.00 0.0 M M M
12/18/2009 7:00 AM 0.00 0.0 M M M
12/19/2009 7:00 AM 0.45 0.0 0.00 6.5 M Snowing light to moderately at time of observation
12/20/2009 7:00 AM 1.01 13.0 M 16.5 M 6.5" fell by 7 am, and at least another 13" of snow fell by 9 pm. The rain gage was completely filled with snow (and overtopped by one inch) at 9 pm, so this is likely a low estimate. Liquid equivalent of the overall catch was 1.46", also likely an undersampling of what fell.
12/21/2009 7:00 AM 0.00 0.0 M M M
12/22/2009 7:00 AM 0.00 0.0 M M M
1/1/2010 7:00 AM 0.30 0.0 M M M
1/2/2010 7:00 AM 0.00 0.0 M M M
1/3/2010 7:00 AM 0.00 0.0 M M M
1/4/2010 7:00 AM 0.00 0.0 M M M
1/5/2010 5:00 AM T T M T M Flurries at time of observation
1/6/2010 6:00 AM T T M T M Flurries at time of observation
1/7/2010 7:00 AM 0.00 0.0 M M M
1/8/2010 6:00 AM 0.12 2.4 M 1.8 M Snow started around 10 pm, ended before the time of observation
1/9/2010 7:00 AM 0.00 0.0 M M M
1/10/2010 7:00 AM 0.00 0.0 M M M
1/11/2010 7:00 AM 0.00 0.0 M M M
1/12/2010 7:00 AM 0.00 0.0 M M M
1/13/2010 7:00 AM 0.00 0.0 M M M
1/14/2010 7:00 AM 0.00 0.0 M M M
1/15/2010 7:00 AM 0.00 0.0 M M M
1/16/2010 7:00 AM 0.00 0.0 M M M
1/17/2010 7:00 AM 0.00 0.0 M M M
1/18/2010 6:00 AM 0.74 0.0 0.00 T T
1/19/2010 7:00 AM 0.00 0.0 M M M
1/20/2010 9:00 AM 0.04 0.0 0.00 T T
1/21/2010 11:59 PM 0.08 M M M M
1/22/2010 11:59 PM 0.15 M M M M
1/23/2010 7:00 AM 0.00 0.0 M M M
1/24/2010 11:59 PM 0.14 M M M M
1/25/2010 11:59 PM 0.34 M M M M
1/26/2010 11:59 PM 0.02 M M M M
1/27/2010 7:00 AM 0.00 0.0 M M M
1/28/2010 7:00 AM 0.00 0.0 M M M
1/29/2010 7:00 AM 0.00 0.0 M M M
1/30/2010 7:00 AM 0.00 0.0 M M M
1/31/2010 7:00 AM 0.25 6.0 0.25 M M
2/1/2010 7:00 AM 0.00 0.0 M M M
2/2/2010 11:59 PM 0.31 5.5 M M M
2/3/2010 11:59 PM 0.02 T M M M
2/4/2010 7:00 AM 0.00 0.0 M M M
2/5/2010 7:00 AM 0.00 0.0 M M M
2/6/2010 8:50 AM 2.26 25.0 M 23.0 M Rain gage overflowed twice with snow (13" the first time at 11:30 pm and 14" the second at 8:50 am)...first time appeared to be a 2" overestimate so lowered the liquid equivalent and snowfall by 2 inches for the first measurement.
2/7/2010 8:50 AM 0.36 5.5 M M M Overall snowfall total of 30.5 inches
2/8/2010 7:00 AM 0.00 0.0 M M M
2/9/2010 7:00 AM 0.00 0.0 M M M
2/10/2010 4:50 AM 0.61 4.8 M M M Liquid equivalent was more than expected overnight
2/11/2010 7:00 AM 0.55 8.7 M M M Storm total of 13.5"...which brings the seasonal total to around 80"
2/12/2010 7:00 AM 0.00 0.0 M M M
2/13/2010 7:00 AM 0.00 0.0 M M M
2/14/2010 7:00 AM 0.00 0.0 M M M
2/15/2010 7:00 AM 0.00 0.0 M M M
2/16/2010 7:00 AM 0.04 T M M M Only ice was in the rain gage this morning, but there was a fine dusting of snow on cars
2/17/2010 7:00 AM 0.00 0.0 M M M
2/18/2010 7:00 AM 0.00 0.0 M M M
2/19/2010 7:00 AM 0.00 0.0 M M M
2/20/2010 7:00 AM 0.00 0.0 M M M
2/21/2010 7:00 AM 0.00 0.0 M M M
2/22/2010 7:00 AM 0.00 0.0 M M M
2/23/2010 7:00 AM 0.18 0.0 M M M
2/24/2010 7:00 AM 0.00 0.0 M M M
2/25/2010 7:00 AM 0.04 T M M M Despite the period of light snow, it was too warm for it to accumulate on anything
2/26/2010 7:00 AM T T M M M Snow flurries yesterday
3/12/2010 9:00 AM 0.42 0.0 0.00 T M
3/13/2010 6:00 AM 0.42 0.0 M T M
3/14/2010 6:00 AM 1.20 0.0 M T M
3/17/2010 7:00 AM 0.00 0.0 M M M
3/18/2010 7:00 AM 0.00 0.0 M M M
3/19/2010 7:00 AM 0.00 0.0 M M M
3/20/2010 7:00 AM 0.00 0.0 M M M
3/21/2010 7:00 AM 0.00 0.0 M M M
3/22/2010 7:00 AM 0.00 0.0 M M M
3/23/2010 7:00 AM 0.38 0.0 0.00 0.0 0.00
3/24/2010 7:00 AM 0.04 0.0 0.00 0.0 0.00
3/25/2010 7:00 AM 0.00 0.0 M M M
3/26/2010 7:00 AM 0.55 0.0 0.00 0.0 0.00
4/1/2010 7:00 AM 0.00 0.0 M M M
4/2/2010 7:00 AM 0.00 0.0 M M M
4/3/2010 7:00 AM 0.00 0.0 M M M
4/4/2010 7:00 AM 0.00 0.0 M M M
4/5/2010 7:00 AM 0.00 0.0 M M M
4/6/2010 7:00 AM 0.00 0.0 M M M
4/7/2010 7:00 AM 0.00 0.0 M M M
4/8/2010 7:00 AM 0.00 0.0 M M M
4/9/2010 7:00 AM 0.31 0.0 0.00 0.0 0.00
4/10/2010 7:00 AM 0.00 0.0 M M M
5/9/2010 7:00 AM 0.01 0.0 0.00 0.0 0.00 Rained prior to 550 am...the weather station shows a wet bulbing around 4 am. Nice rainbow off to the southwest between 610 and 620 am this morning. Drove through intermittent light rain in Rockville, Bethesda, and Silver Spring between 620 am and 630 am.
6/28/2010 7:00 AM 0.20 0.0 0.00 0.0 0.00
6/29/2010 7:00 AM 1.00 0.0 0.00 0.0 0.00 Lightning brought down a tree branch (1/3 of the tree) in my yard around 1:35 pm which fell on one vehicle in the parking lot, and blocked 3 others. It was cleared by 7:30 pm
9/27/2010 6:00 AM 0.26 0.0 0.00 0.0 0.00
9/28/2010 9:00 AM 1.40 0.0 0.00 0.0 0.00 Occurred mainly during the late morning hours yesterday
9/29/2010 9:00 AM 0.00 0.0 0.00 0.0 0.00
9/30/2010 10:00 AM 2.49 0.0 0.00 0.0 0.00



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/23/2009 12/13/2009 7:00 AM 21 3.65 0.0 0.00



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