Station Overview Station Location
Station Number MD-FR-12 Latitude 39.4195
Station Name New Market 2.6 NNW Longitude -77.2905
County Frederick Elevation (ft) 370



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 16 3.38 0.90 31 0.90 31 0.00 0 0 8 2 0.0 0 0
Nov 16 3.43 1.02 30 0.74 26 0.28 4 1 4 3 0.0 0 0
Dec 16 3.21 3.53 31 3.53 31 0.00 0 0 8 4 0.5 1 1
Jan 17 2.83 3.00 31 2.59 26 0.41 5 1 13 3 2.0 1 4
Feb 17 2.69 0.86 28 0.86 28 0.00 0 0 6 2 0.1 1 0
March 17 3.68 3.26 31 3.26 30 0.00 1 0 11 7 6.1 2 6
April 17 3.49 4.52 30 3.21 26 1.31 4 1 14 2 0.0 0 0
May 17 4.34 5.52 31 5.52 31 0.00 0 0 18 1 0.0 0 0
June 17 3.70 2.09 30 2.09 26 0.00 4 1 6 2 0.0 0 0
July 17 3.84 6.91 31 6.50 29 0.41 2 1 9 2 0.0 0 0
Aug 17 3.04 4.14 31 2.88 29 1.26 2 1 13 3 0.0 0 0
Sept 17 4.04 2.23 30 2.13 20 0.10 10 1 4 0 0.0 0 0
Water Year Totals: 41.67" 37.98" 365 days 34.21" 333 3.77" 32 days 7 114 days 31 days 8.7" 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
10/1/2016 0.44
10/2/2016 0.11
10/3/2016 T
10/4/2016 0.00
10/5/2016 0.00
10/6/2016 0.00
10/7/2016 0.00
10/8/2016 0.01
10/9/2016 0.13
10/10/2016 0.00
10/11/2016 0.00
10/12/2016 0.00
10/13/2016 0.00
10/14/2016 0.01
10/15/2016 0.00
10/16/2016 0.00
10/17/2016 0.00
10/18/2016 0.00
10/19/2016 0.00
10/20/2016 0.00
10/21/2016 0.00
10/22/2016 0.04
10/23/2016 0.00
10/24/2016 0.00
10/25/2016 0.00
10/26/2016 0.00
10/27/2016 T
10/28/2016 0.12
10/29/2016 0.00
10/30/2016 0.00
10/31/2016 0.04
11/1/2016 0.00
11/2/2016 0.00
11/3/2016 0.00
11/4/2016 0.03
11/5/2016 0.00
11/6/2016 0.00
11/7/2016 0.00
11/8/2016 **
11/9/2016 **
11/10/2016 **
11/11/2016 0.28
11/12/2016 0.00
11/13/2016 0.00
11/14/2016 0.00
11/15/2016 0.00
11/16/2016 0.00
11/17/2016 T
11/18/2016 0.00
11/19/2016 0.00
11/20/2016 0.02
11/21/2016 0.00
11/22/2016 0.00
11/23/2016 0.00
11/24/2016 T
11/25/2016 T
11/26/2016 0.00
11/27/2016 0.00
11/28/2016 0.00
11/29/2016 0.11
11/30/2016 0.58
12/1/2016 1.15
12/2/2016 0.00
12/3/2016 0.00
12/4/2016 0.00
12/5/2016 0.30
12/6/2016 0.00
12/7/2016 0.72
12/8/2016 0.00
12/9/2016 0.00
12/10/2016 0.00
12/11/2016 T
12/12/2016 0.21
12/13/2016 0.00
12/14/2016 0.00
12/15/2016 0.00
12/16/2016 0.00
12/17/2016 0.53
12/18/2016 0.04
12/19/2016 T
12/20/2016 0.00
12/21/2016 0.00
12/22/2016 0.00
12/23/2016 0.00
12/24/2016 0.42
12/25/2016 0.00
12/26/2016 0.00
12/27/2016 0.00
12/28/2016 0.00
12/29/2016 0.16
12/30/2016 T
12/31/2016 T
Day of YearDaily PrcpMultiday Prcp
1/1/2017 0.00
1/2/2017 0.25
1/3/2017 0.10
1/4/2017 0.79
1/5/2017 0.00
1/6/2017 0.11
1/7/2017 T
1/8/2017 T
1/9/2017 0.00
1/10/2017 0.00
1/11/2017 0.02
1/12/2017 **
1/13/2017 **
1/14/2017 **
1/15/2017 **
1/16/2017 0.41
1/17/2017 0.02
1/18/2017 0.21
1/19/2017 0.01
1/20/2017 0.00
1/21/2017 0.09
1/22/2017 0.01
1/23/2017 0.13
1/24/2017 0.84
1/25/2017 0.01
1/26/2017 0.00
1/27/2017 0.00
1/28/2017 0.00
1/29/2017 0.00
1/30/2017 0.00
1/31/2017 T
2/1/2017 T
2/2/2017 0.00
2/3/2017 0.00
2/4/2017 0.00
2/5/2017 0.00
2/6/2017 0.00
2/7/2017 0.00
2/8/2017 0.00
2/9/2017 0.30
2/10/2017 0.02
2/11/2017 0.00
2/12/2017 0.05
2/13/2017 0.13
2/14/2017 0.00
2/15/2017 0.00
2/16/2017 0.00
2/17/2017 T
2/18/2017 0.00
2/19/2017 0.00
2/20/2017 0.00
2/21/2017 0.00
2/22/2017 0.00
2/23/2017 0.00
2/24/2017 0.00
2/25/2017 0.00
2/26/2017 0.12
2/27/2017 0.00
2/28/2017 0.24
3/1/2017 0.00
3/2/2017 0.20
3/3/2017 T
3/4/2017 0.00
3/5/2017 0.00
3/6/2017 0.00
3/7/2017 0.01
3/8/2017 0.21
3/9/2017 T
3/10/2017 0.00
3/11/2017 0.11
3/12/2017 0.00
3/13/2017 0.00
3/14/2017 1.33
3/15/2017 T
3/16/2017 T
3/17/2017 0.00
3/18/2017 0.02
3/19/2017 0.31
3/20/2017 T
3/21/2017 T
3/22/2017 0.00
3/23/2017 0.00
3/24/2017 0.00
3/25/2017 0.03
3/26/2017 0.00
3/27/2017 0.04
3/28/2017 0.06
3/29/2017 0.94
3/30/2017 T
3/31/2017 **
Day of YearDaily PrcpMultiday Prcp
4/1/2017 **
4/2/2017 **
4/3/2017 **
4/4/2017 1.31
4/5/2017 0.06
4/6/2017 T
4/7/2017 1.38
4/8/2017 0.01
4/9/2017 0.00
4/10/2017 0.00
4/11/2017 0.00
4/12/2017 0.00
4/13/2017 0.04
4/14/2017 0.00
4/15/2017 0.00
4/16/2017 0.04
4/17/2017 T
4/18/2017 0.28
4/19/2017 0.00
4/20/2017 0.01
4/21/2017 0.38
4/22/2017 0.12
4/23/2017 0.30
4/24/2017 0.01
4/25/2017 0.29
4/26/2017 0.24
4/27/2017 0.00
4/28/2017 0.00
4/29/2017 0.05
4/30/2017 0.00
5/1/2017 0.00
5/2/2017 T
5/3/2017 0.00
5/4/2017 0.00
5/5/2017 0.58
5/6/2017 0.88
5/7/2017 0.19
5/8/2017 0.00
5/9/2017 0.00
5/10/2017 0.00
5/11/2017 0.00
5/12/2017 0.94
5/13/2017 0.55
5/14/2017 0.01
5/15/2017 0.00
5/16/2017 0.00
5/17/2017 0.00
5/18/2017 0.00
5/19/2017 0.26
5/20/2017 0.05
5/21/2017 0.00
5/22/2017 0.05
5/23/2017 0.45
5/24/2017 0.17
5/25/2017 0.69
5/26/2017 0.50
5/27/2017 0.02
5/28/2017 0.02
5/29/2017 0.12
5/30/2017 0.01
5/31/2017 0.03
6/1/2017 T
6/2/2017 0.00
6/3/2017 0.00
6/4/2017 0.00
6/5/2017 0.00
6/6/2017 0.10
6/7/2017 0.00
6/8/2017 0.04
6/9/2017 **
6/10/2017 **
6/11/2017 **
6/12/2017 0.00
6/13/2017 0.00
6/14/2017 0.00
6/15/2017 0.00
6/16/2017 0.00
6/17/2017 0.01
6/18/2017 0.00
6/19/2017 0.00
6/20/2017 1.08
6/21/2017 0.00
6/22/2017 0.05
6/23/2017 T
6/24/2017 0.81
6/25/2017 0.00
6/26/2017 0.00
6/27/2017 0.00
6/28/2017 0.00
6/29/2017 0.00
6/30/2017 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2017 0.00
7/2/2017 0.45
7/3/2017 0.00
7/4/2017 0.00
7/5/2017 0.46
7/6/2017 0.82
7/7/2017 1.15
7/8/2017 0.03
7/9/2017 0.00
7/10/2017 0.00
7/11/2017 0.00
7/12/2017 0.00
7/13/2017 0.00
7/14/2017 0.00
7/15/2017 0.65
7/16/2017 0.00
7/17/2017 0.00
7/18/2017 T
7/19/2017 0.00
7/20/2017 0.00
7/21/2017 0.00
7/22/2017 T
7/23/2017 **
7/24/2017 0.41
7/25/2017 0.25
7/26/2017 0.00
7/27/2017 0.00
7/28/2017 0.00
7/29/2017 2.59
7/30/2017 0.10
7/31/2017 0.00
8/1/2017 0.00
8/2/2017 0.00
8/3/2017 T
8/4/2017 0.00
8/5/2017 0.32
8/6/2017 0.00
8/7/2017 0.15
8/8/2017 0.24
8/9/2017 0.00
8/10/2017 0.00
8/11/2017 T
8/12/2017 0.07
8/13/2017 **
8/14/2017 1.26
8/15/2017 0.38
8/16/2017 0.04
8/17/2017 0.00
8/18/2017 0.06
8/19/2017 0.17
8/20/2017 0.85
8/21/2017 0.02
8/22/2017 0.00
8/23/2017 0.03
8/24/2017 0.00
8/25/2017 T
8/26/2017 0.00
8/27/2017 0.00
8/28/2017 0.00
8/29/2017 0.02
8/30/2017 0.53
8/31/2017 0.00
9/1/2017 0.00
9/2/2017 0.02
9/3/2017 0.34
9/4/2017 0.00
9/5/2017 0.00
9/6/2017 0.92
9/7/2017 0.85
9/8/2017 0.00
9/9/2017 0.00
9/10/2017 **
9/11/2017 **
9/12/2017 **
9/13/2017 **
9/14/2017 **
9/15/2017 **
9/16/2017 **
9/17/2017 **
9/18/2017 **
9/19/2017 0.10
9/20/2017 0.00
9/21/2017 0.00
9/22/2017 0.00
9/23/2017 0.00
9/24/2017 0.00
9/25/2017 0.00
9/26/2017 0.00
9/27/2017 0.00
9/28/2017 0.00
9/29/2017 0.00
9/30/2017 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2016 9:45 AM 0.44 M M M M
10/2/2016 9:00 AM 0.11 M M M M
10/3/2016 5:00 AM T 0.0 0.00 0.0 0.00 Sporadic drizzle in the morning, became partly cloudy in the afternoon. Nice to see the sun. Some fog this morning.
10/4/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/5/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/6/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/7/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/8/2016 8:15 AM 0.01 0.0 0.00 0.0 0.00 Very light rain this morning
10/9/2016 8:30 AM 0.13 M M M M
10/10/2016 5:00 AM 0.00 0.0 M M M
10/11/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/12/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/13/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00 current temp 49
10/14/2016 5:00 AM 0.01 M M M M
10/15/2016 7:30 AM 0.00 0.0 M M M Frost on the rooftops. Entered report.
10/16/2016 9:00 AM 0.00 0.0 M M M
10/17/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/18/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/19/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/20/2016 5:00 AM 0.00 0.0 M M M
10/21/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/22/2016 8:00 AM 0.04 M M M M
10/23/2016 9:00 AM 0.00 0.0 M M M
10/24/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/25/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
10/26/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00 Current temp 33 with frost apparent on most surfaces.
10/27/2016 5:00 AM T 0.0 0.00 0.0 0.00 A couple drops at around 6p.
10/28/2016 5:00 AM 0.12 0.0 0.00 0.0 0.00 Periodic showers. Early morning lightning northeast toward Westminster. Early afternoon lightning southwest toward Sterling and DC.
10/29/2016 8:00 AM 0.00 0.0 M M M
10/30/2016 6:00 AM 0.00 0.0 M M M
10/31/2016 5:00 AM 0.04 0.0 0.00 0.0 0.00 October 2016 is my driest month ever, going back to September 2011.
11/1/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
11/2/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
11/3/2016 9:00 AM 0.00 0.0 0.00 0.0 0.00
11/4/2016 7:00 AM 0.03 0.0 0.00 0.0 0.00
11/5/2016 9:30 AM 0.00 0.0 M M M Pockets of frost still around
11/6/2016 8:30 AM 0.00 0.0 0.00 0.0 0.00
11/7/2016 9:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/12/2016 8:00 AM 0.00 0.0 0.00 0.0 0.00
11/13/2016 8:30 AM 0.00 0.0 0.00 0.0 0.00
11/14/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00
11/15/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00
11/16/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00
11/17/2016 6:00 AM T 0.0 0.00 0.0 0.00
11/18/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00
11/19/2016 8:15 AM 0.00 0.0 0.00 0.0 0.00 A bit frosty this morning
11/20/2016 8:15 AM 0.02 0.0 0.00 0.0 0.00 Gusty cold front, then a band of rain. Temp was near 70, dropped to the upper 30s.
11/21/2016 4:00 AM 0.00 0.0 0.00 0.0 0.00
11/22/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
11/23/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00
11/24/2016 6:00 AM T 0.0 0.00 0.0 0.00 Just had a few sprinkles. Chilly in the upper 30s right now.
11/25/2016 9:10 AM T 0.0 0.00 0.0 0.00 Morning passing sprinkles yesterday.
11/26/2016 9:00 AM 0.00 0.0 0.00 0.0 0.00
11/27/2016 8:00 AM 0.00 0.0 0.00 0.0 0.00
11/28/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00 Current temp 26. Copious frost.
11/29/2016 5:50 AM 0.11 0.0 0.00 0.0 0.00
11/30/2016 5:55 AM 0.58 0.0 0.00 0.0 0.00 Currently, drizzly mist with fog evident, but not dense at my location. November 2016 winds up as second driest month behind October 2016 (records back to Sep 2011).
12/1/2016 6:00 AM 1.15 0.0 0.00 0.0 0.00
12/2/2016 8:15 AM 0.00 0.0 0.00 0.0 0.00
12/3/2016 9:00 AM 0.00 0.0 0.00 0.0 0.00
12/4/2016 9:00 AM 0.00 0.0 0.00 0.0 0.00
12/5/2016 5:05 AM 0.30 M M 0.0 0.00
12/6/2016 4:15 AM 0.00 0.0 0.00 0.0 0.00
12/7/2016 4:10 AM 0.72 T 0.72 0.0 0.00 A few sleet pellets mixed in with rain at onset in the morning, then rain.
12/8/2016 5:05 AM 0.00 0.0 0.00 0.0 0.00 slightly frosted gauge this morning
12/9/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00 Winter cold this morning, mid 20s with a breeze.
12/10/2016 8:30 AM 0.00 0.0 0.00 0.0 0.00
12/11/2016 9:00 AM T T T T T Very thin coating of snow on cars, pavement, roofs.
12/12/2016 6:00 AM 0.21 0.0 0.00 0.0 0.00 Rain already ended. Temp 34.
12/13/2016 5:55 AM 0.00 0.0 0.00 0.0 0.00
12/14/2016 6:00 AM 0.00 0.0 M M M
12/15/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00
12/16/2016 5:55 AM 0.00 0.0 0.00 0.0 0.00
12/17/2016 8:15 AM 0.53 0.5 0.53 0.5 M Snow, sleet and freezing rain overnight. Currently sporadic freezing rain with temp near 27. Ice thickness 1/16" to 1/8".
12/18/2016 9:00 AM 0.04 0.0 0.00 0.0 0.00 FZRA- ended in the morning. 0.12" ice accretion, which started to melt in the early afternoon hours. Temps now in the mid 50s so almost everything has melted. Some residual piles near the street side.
12/19/2016 6:00 AM T 0.0 0.00 0.0 0.00 Brief showers with FROPA, then gusty afternoon
12/20/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00
12/21/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00
12/22/2016 6:00 AM 0.00 0.0 0.00 0.0 0.00
12/23/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
12/24/2016 10:00 AM 0.42 0.0 0.00 0.0 0.00 Overnight rain. Currently cool and cloudy.
12/25/2016 9:10 AM 0.00 0.0 0.00 0.0 0.00
12/26/2016 6:00 AM 0.00 0.0 M M M
12/27/2016 5:00 AM 0.00 0.0 0.00 0.0 0.00
12/28/2016 4:00 AM 0.00 0.0 0.00 0.0 0.00
12/29/2016 9:00 AM 0.16 M M 0.0 0.00 Precip ended earlier this morning.
12/30/2016 8:55 AM T T T 0.0 0.00 Flurries began just now between 845a-855a.
12/31/2016 9:00 AM T T T 0.0 0.00 Occasional flurries and one snow squall yesterday which created a dusting of snow on the patio, roof and some roads. Sunshine afterwards took care of all the snow.
1/1/2017 10:00 AM 0.00 0.0 0.00 0.0 0.00 Happy New Year!!!
1/2/2017 5:55 AM 0.25 0.0 0.00 0.0 0.00 Overnight rain. A drizzly mist at obs time.
1/3/2017 5:00 AM 0.10 0.0 0.00 0.0 0.00
1/4/2017 5:00 AM 0.79 0.0 0.00 0.0 0.00
1/5/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
1/6/2017 5:00 AM 0.11 2.0 0.11 2.0 0.11 Flurries in the afternoon, then steady light snow after 7p. Snow has ended with current temp mid 20s.
1/7/2017 8:45 AM T T T 1.0 M Snow just ended. Tiny flakes and snow grains, Trace amount. Some sublimation of yesterday's snow cover.
1/8/2017 9:00 AM T T T 0.5 M A few flurries early afternoon
1/9/2017 6:00 AM 0.00 0.0 0.00 0.1 M
1/10/2017 5:00 AM 0.00 0.0 0.00 T M
1/11/2017 7:30 AM 0.02 T 0.02 T T Burst of snow between 930a and 11a briefly dusted ground. Rain last night. Small area glaze ice on front step.
1/17/2017 9:00 AM 0.02 0.0 0.00 0.0 0.00 Drizzly with fog
1/18/2017 5:00 AM 0.21 0.0 0.00 0.0 0.00
1/19/2017 5:00 AM 0.01 0.0 0.00 0.0 0.00
1/20/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00 A bit frosty this morning
1/21/2017 11:45 AM 0.09 0.0 0.00 0.0 0.00
1/22/2017 9:15 AM 0.01 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.0.7 (build 2009)
1/23/2017 5:50 AM 0.13 0.0 0.00 0.0 0.00
1/24/2017 6:00 AM 0.84 T 0.84 0.0 0.00 Plenty of rain. One thunderclap in the morning. Period of sleet in the early afternoon heavy enough to accumulate on roads and flower beds. Have pictures, one showing wheel tracks in the slush. Some areas had sporadic power outages. All sleet gone this morning.
1/25/2017 6:00 AM 0.01 0.0 0.00 0.0 0.00 Rain lingered into the early morning yesterday, then cloudy with a bit of sun breaking thru in the afternoon.
1/26/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00
1/27/2017 5:30 AM 0.00 0.0 0.00 0.0 0.00
1/28/2017 6:00 AM 0.00 0.0 M M M
1/29/2017 8:45 AM 0.00 0.0 0.00 0.0 0.00
1/30/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
1/31/2017 5:00 AM T T T 0.0 0.00 A few rounds of flurries and snow showers in the afternoon.
2/1/2017 5:00 AM T T T 0.0 0.00 Early morning snow shower.
2/2/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
2/3/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
2/4/2017 7:45 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
2/5/2017 8:30 AM 0.00 0.0 0.00 0.0 0.00
2/6/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
2/7/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
2/8/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00 Record warmth. Current temp 60.
2/9/2017 5:05 AM 0.30 T 0.30 T M Light snow currently. Trace accumulation on grass.
2/10/2017 5:00 AM 0.02 0.1 0.02 0.0 0.00 Morning snow covered grass. Afternoon flurries and brief snow squalls.
2/11/2017 9:00 AM 0.00 0.0 0.00 0.0 0.00
2/12/2017 8:45 AM 0.05 0.0 0.00 0.0 0.00 Lightly raining currently
2/13/2017 6:10 AM 0.13 0.0 0.00 0.0 0.00 Very gusty winds late last night. Found small twigs/branches along the driveway.
2/14/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00
2/15/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
2/16/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00
2/17/2017 8:00 AM T T T 0.0 0.00 Flurries associated with narrow snow bands yesterday.
2/18/2017 6:00 AM 0.00 0.0 M M M
2/19/2017 6:00 AM 0.00 0.0 M M M
2/20/2017 6:05 AM 0.00 0.0 0.00 0.0 0.00
2/21/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00
2/22/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00
2/23/2017 6:00 AM 0.00 0.0 M M M
2/24/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00
2/25/2017 9:15 AM 0.00 0.0 0.00 0.0 0.00
2/26/2017 8:30 AM 0.12 0.0 0.00 0.0 0.00 Impressive squall line came through about 2:15 p.m. I was driving toward northern Frederick at the time and encountered sheets of rain, small hail and gusty winds near 50 mph.
2/27/2017 5:00 AM 0.00 0.0 M M M
2/28/2017 5:00 AM 0.24 M M M M
3/1/2017 5:00 AM 0.00 0.0 M M M
3/2/2017 5:00 AM 0.20 0.0 0.00 0.0 0.00 Early afternoon line of convective showers produced gusty winds, but strangely no lightning until east around Mount Airy. Breezy and dry currently, also much cooler.
3/3/2017 7:45 AM T T T T M Thin partial dusting of snow on rooftops and cars. Parts of yard have Trace dusting. Currently sunny.
3/4/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
3/5/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
3/6/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00
3/7/2017 6:00 AM 0.01 0.0 0.00 0.0 0.00 Very light rain at obs time
3/8/2017 6:00 AM 0.21 0.0 0.00 0.0 0.00
3/9/2017 6:00 AM T 0.0 0.00 M M
3/10/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
3/11/2017 8:30 AM 0.11 T 0.11 0.0 0.00 Rain started btw 620a-640a yesterday and promptly changed to snow.
3/12/2017 8:30 AM 0.00 0.0 0.00 0.0 0.00 Sunny, chilly and dry. Current temp 25.
3/13/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
3/14/2017 11:15 AM 1.33 6.0 1.33 6.0 M Snow/sleet mix. Light precip began late yesterday evening, heavier overnight into this morning.
3/15/2017 5:15 AM T 0.1 T 6.0 M Intermittent light snow continued during the afternoon yesterday. Rock hard snow/ice cover measurement as high as 7.5" in a few spots, with average near 6". Consistency reminds me of Feb 2007 sleet storm.
3/16/2017 9:30 AM T T T 4.0 1.11 A few flurries yesterday. Difficult SWE with compacted ice.
3/17/2017 9:30 AM 0.00 0.0 0.00 3.0 M
3/18/2017 9:00 AM 0.02 0.0 0.00 2.0 M
3/19/2017 8:40 AM 0.31 T 0.31 0.1 M Lots of melting yesterday, then rain last night. Lingering flurries this morning with Trace accumulation. Roads are wet.
3/20/2017 5:00 AM T T T T M Flurries ended by mid-morning
3/21/2017 5:00 AM T 0.0 0.00 0.0 0.00
3/22/2017 5:00 AM 0.00 0.0 M M M
3/23/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00 Frosty this morning
3/24/2017 5:00 AM 0.00 0.0 M M M
3/25/2017 9:00 AM 0.03 0.0 0.00 0.0 0.00
3/26/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
3/27/2017 5:00 AM 0.04 0.0 0.00 0.0 0.00
3/28/2017 5:00 AM 0.06 0.0 0.00 0.0 0.00 Early morning thunderstorm ended by 4:45 a.m. I got the southern edge of it, so more rain fell to the north.
3/29/2017 4:15 AM 0.94 0.0 0.00 0.0 0.00 Another batch of thunderstorms in the morning, then mostly sunny afternoon
3/30/2017 5:00 AM T 0.0 0.00 0.0 0.00 Early morning drizzle/mist yesterday
4/5/2017 6:00 AM 0.06 0.0 0.00 0.0 0.00 A few showers before Noon, afternoon high near 80
4/6/2017 6:00 AM T 0.0 0.00 0.0 0.00 First mow yesterday afternoon. Misty with a bit of drizzle this morning
4/7/2017 6:00 AM 1.38 M M M M Rain and thunderstorms mainly in the morning, then sporadic showers early afternoon
4/8/2017 8:00 AM 0.01 M M M M Sporadic sprinkles and brief showers yesterday. Sunny and chilly this morning in the upper 30s.
4/9/2017 9:15 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
4/10/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
4/11/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
4/12/2017 5:10 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
4/13/2017 5:00 AM 0.04 0.0 0.00 0.0 0.00 Band of rain between ~950am and ~1030am
4/14/2017 5:10 AM 0.00 0.0 0.00 0.0 0.00
4/15/2017 8:50 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
4/16/2017 8:00 AM 0.04 M M M M
4/17/2017 5:55 AM T 0.0 0.00 0.0 0.00
4/18/2017 5:00 AM 0.28 M M M M A band of rain prior to Noon, then afternoon clearing. Current temp near 50 degrees.
4/19/2017 5:00 AM 0.00 0.0 M M M
4/20/2017 5:00 AM 0.01 M M M M
4/21/2017 5:00 AM 0.38 0.0 0.00 0.0 0.00 Early morning rain, then sunny by midday to early afternoon. Evening thunderstorm. Currently very light to light rain and 60 degrees.
4/22/2017 9:55 AM 0.12 M M M M
4/23/2017 7:45 AM 0.30 M M M M Cool with rain most of the day. Mostly sunny this morning with temps in the lower 40s.
4/24/2017 5:00 AM 0.01 M M M M Had sunshine most of Sunday, then cloudy late with very light sprinkles this morning.
4/25/2017 5:00 AM 0.29 0.0 0.00 0.0 0.00
4/26/2017 5:00 AM 0.24 M M M M
4/27/2017 5:00 AM 0.00 0.0 M M M
4/28/2017 5:00 AM 0.00 0.0 M M M
4/29/2017 8:15 AM 0.05 M M M M
4/30/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/1/2017 5:50 AM 0.00 0.0 M M M
5/2/2017 6:00 AM T 0.0 0.00 0.0 0.00
5/3/2017 6:00 AM 0.00 0.0 M M M
5/4/2017 6:00 AM 0.00 0.0 M M M Current temp in the mid 40s
5/5/2017 5:55 AM 0.58 M M M M A few sprinkles late last night and rainy this morning with a bit of a breeze. Temps in the lower 60s.
5/6/2017 6:45 AM 0.88 M M M M
5/7/2017 9:00 AM 0.19 M M M M
5/8/2017 5:00 AM 0.00 0.0 M M M
5/9/2017 5:00 AM 0.00 0.0 M M M Cool upper 30s this morning.
5/10/2017 5:00 AM 0.00 0.0 M M M
5/11/2017 5:00 AM 0.00 0.0 M M M
5/12/2017 5:00 AM 0.94 M M M M Band of rain came in after 7 a.m. Still raining very lightly at 3-4 p.m., drizzle ending about 6 p.m.
5/13/2017 8:30 AM 0.55 M M M M Rain yesterday evening into the morning. Still misting currently.
5/14/2017 8:30 AM 0.01 M M M M
5/15/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00
5/16/2017 6:00 AM 0.00 0.0 M M M
5/17/2017 6:00 AM 0.00 0.0 M M M
5/18/2017 6:00 AM 0.00 0.0 M M M
5/19/2017 5:00 AM 0.26 M M M M Strong thunderstorm arrived between 4:30-5 p.m. and lasted less than an hour. Neighbors noted hail (photo and video) but I missed seeing any. Several others took pictures of some of the best-looking mammatus I've ever seen in Maryland.
5/20/2017 8:30 AM 0.05 0.0 0.00 0.0 0.00 Late-evening thunderstorm btw 9-10p
5/21/2017 8:30 AM 0.00 0.0 M M M
5/22/2017 5:05 AM 0.05 M M M M Very light rain at obs time
5/23/2017 5:00 AM 0.45 M M M M Rained in the morning, with some breaks in the clouds late afternoon. Patchy fog currently.
5/24/2017 8:00 AM 0.17 M M M M
5/25/2017 8:00 AM 0.69 M M M M
5/26/2017 8:00 AM 0.50 M M M M
5/27/2017 8:00 AM 0.02 M M M M
5/28/2017 8:00 AM 0.02 M M M M
5/29/2017 8:30 AM 0.12 0.0 0.00 0.0 0.00
5/30/2017 5:50 AM 0.01 0.0 0.00 0.0 0.00 Drizzly mist with fog earlier
5/31/2017 6:00 AM 0.03 M M M M
6/1/2017 6:00 AM T M M M M Early AM mist yesterday
6/2/2017 6:00 AM 0.00 0.0 0.00 0.0 0.00
6/3/2017 8:00 AM 0.00 0.0 M M M
6/4/2017 8:00 AM 0.00 0.0 M M M
6/5/2017 4:15 AM 0.00 0.0 M M M
6/6/2017 5:00 AM 0.10 0.0 0.00 0.0 0.00
6/7/2017 5:00 AM 0.00 0.0 M M M
6/8/2017 4:20 AM 0.04 M M M M Sprinkles and sporadic showers yesterday morning. Shallow fog and upper 40s with the moon visible this morning.
6/13/2017 5:55 AM 0.00 0.0 0.00 0.0 0.00
6/14/2017 5:50 AM 0.00 0.0 M M M Hot and steamy, with BWI tying a record at 97 yesterday while HGR hit 95. Current temp in the lower 70s with mid 60s dew point.
6/15/2017 6:00 AM 0.00 0.0 M M M Another hot day near 90. Current temp 70.
6/16/2017 5:05 AM 0.00 0.0 M M M
6/17/2017 9:00 AM 0.01 0.0 0.00 0.0 0.00
6/18/2017 8:50 AM 0.00 0.0 M M M
6/19/2017 4:50 AM 0.00 0.0 M M M
6/20/2017 5:00 AM 1.08 0.0 0.00 0.0 0.00 Thunderstorm arrived about 2:15 p.m., heaviest rain before 3 p.m., with lighter rain fading by around 4:15 p.m.
6/21/2017 5:10 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.0.9 (build 20011)
6/22/2017 5:00 AM 0.05 M M M M Shower came through between 6-6:30 p.m., lasted about 10 minutes.
6/23/2017 5:00 AM T M M M M A few sprinkles currently
6/24/2017 9:45 AM 0.81 M M M M Rain between 5-9a yesterday, and from about 1-5a earlier today.
6/25/2017 8:00 AM 0.00 0.0 M M M
6/26/2017 5:50 AM 0.00 0.0 M M M
6/27/2017 6:00 AM 0.00 0.0 M M M
6/28/2017 6:00 AM 0.00 0.0 M M M
6/29/2017 6:00 AM 0.00 0.0 M M M
6/30/2017 5:00 AM 0.00 0.0 M M M
7/1/2017 9:00 AM 0.00 0.0 M M M
7/2/2017 8:00 AM 0.45 M M M M Thunderstorm between 3-330p. Briefly gusty to around 40 mph.
7/3/2017 5:00 AM 0.00 0.0 M M M
7/4/2017 5:05 AM 0.00 0.0 M M M
7/5/2017 5:05 AM 0.46 M M M M A couple of evening thunderstorms, but people still did their fireworks between 9-10pm
7/6/2017 5:05 AM 0.82 0.0 0.00 0.0 0.00 Thunderstorm at 1pm, rained for a couple hours. Currently light rain.
7/7/2017 5:00 AM 1.15 M M M M Rainy for most of the day, with a dry period in the evening. Currently cloudy, temp 69 and not raining.
7/8/2017 7:00 AM 0.03 M M M M
7/9/2017 7:45 AM 0.00 0.0 M M M Nice morning today.
7/10/2017 7:30 AM 0.00 0.0 M M M
7/11/2017 7:30 AM 0.00 0.0 M M M
7/12/2017 7:30 AM 0.00 0.0 M M M Thunderstorm nearby late-afternoon but missed the rain.
7/13/2017 7:20 AM 0.00 0.0 M M M
7/14/2017 7:20 AM 0.00 0.0 M M M
7/15/2017 7:30 AM 0.65 0.0 0.00 0.0 0.00 Scattered afternoon thunderstorms. Heaviest rain around 6p briefly knocked out satellite reception.
7/16/2017 7:40 AM 0.00 0.0 M M M
7/17/2017 4:50 AM 0.00 0.0 M M M
7/18/2017 5:00 AM T M M M M Intermittent VCTS (within 2 miles) from around 245p to 7p, but only saw brief sprinkles around 6p.
7/19/2017 7:00 AM 0.00 0.0 M M M
7/20/2017 5:00 AM 0.00 0.0 M M M
7/21/2017 8:00 AM 0.00 0.0 M M M Triple-H weather
7/22/2017 7:15 AM T 0.0 M M M
7/25/2017 5:00 AM 0.25 M M M M Thunderstorm arrived about 745pm. Rained heavy enough to interrupt satellite reception. Briefly gusty near 30 mph.
7/26/2017 4:55 AM 0.00 0.0 M M M Not as humid with dew points in the 50s most of the day.
7/27/2017 5:00 AM 0.00 0.0 0.00 0.0 0.00
7/28/2017 5:00 AM 0.00 0.0 M M M
7/29/2017 9:15 AM 2.59 0.0 0.00 0.0 0.00 Rain with thunder early afternoon. Occasional dry breaks later afternoon and evening, then significant rain. Tree down at ~11p blocking road near house. Took picture. Short walk and home by Midnight. Not raining at obs time.
7/30/2017 8:15 AM 0.10 M M M M Band of morning showers.
7/31/2017 6:00 AM 0.00 0.0 M M M Nice day
8/1/2017 6:00 AM 0.00 0.0 M M M Comfortable summer day
8/2/2017 6:00 AM 0.00 0.0 M M M Afternoon thunderstorms in Frederick County missed my location, but nailed south-end of Frederick with a damaging gust.
8/3/2017 6:00 AM T 0.0 0.00 0.0 0.00
8/4/2017 5:50 AM 0.00 0.0 M M M
8/5/2017 8:10 AM 0.32 M M M M late night thunderstorms
8/6/2017 7:40 AM 0.00 0.0 M M M
8/7/2017 5:00 AM 0.15 0.0 0.00 0.0 0.00 Showers this morning between 2-4 a.m.
8/8/2017 5:00 AM 0.24 M M M M Showers between 7-8a, steady rain between 10a-2p, then a final shower between 2-3p
8/9/2017 4:00 AM 0.00 0.0 M M M
8/10/2017 5:00 AM 0.00 0.0 M M M
8/11/2017 5:00 AM T M M M M A few sprinkles in the evening, about 5-515p
8/12/2017 10:00 AM 0.07 M M M M
8/15/2017 6:00 AM 0.38 M M M M
8/16/2017 6:00 AM 0.04 M M M M Rain yesterday morning. Currently foggy and calm.
8/17/2017 5:55 AM 0.00 0.0 M M M
8/18/2017 6:00 AM 0.06 M M M M Brief shower between 5-6p. Very humid with dew points in the mid 70s.
8/19/2017 8:45 AM 0.17 M M M M Afternoon thunderstorm
8/20/2017 8:30 AM 0.85 M M M M Gusty thunderstorm ~830p
8/21/2017 5:00 AM 0.02 0.0 0.00 0.0 0.00 Overnight shower
8/22/2017 5:00 AM 0.00 0.0 M M M Yesterday's eclipse show was nice. Have some crescent shadow pics. A late-evening thunderstorm in Frederick County stayed to my north and northeast. Heard numerous rumbles of thunder and could see the towering cloud, but not a drop fell here.
8/23/2017 5:00 AM 0.03 M M M M
8/24/2017 5:00 AM 0.00 0.0 M M M
8/25/2017 5:00 AM T M M M M A few overnight sprinkles. Current temp in the lower 60s.
8/26/2017 8:00 AM 0.00 0.0 M M M
8/27/2017 8:00 AM 0.00 0.0 M M M
8/28/2017 5:55 AM 0.00 0.0 M M M
8/29/2017 6:00 AM 0.02 0.0 0.00 0.0 0.00 Currently very light rain
8/30/2017 5:55 AM 0.53 M M M M
8/31/2017 5:55 AM 0.00 0.0 M M M
9/1/2017 5:55 AM 0.00 0.0 M M M
9/2/2017 8:00 AM 0.02 M M M M
9/3/2017 8:30 AM 0.34 0.0 0.00 0.0 0.00
9/4/2017 12:00 PM 0.00 0.0 M M M
9/5/2017 5:45 AM 0.00 0.0 M M M
9/6/2017 7:50 AM 0.92 M M M M Strong thunderstorm with gust front arrived 415-430p. Rained about 3 hours. Light sprinkles currently.
9/7/2017 8:00 AM 0.85 M M M M
9/8/2017 8:00 AM 0.00 0.0 M M M
9/9/2017 7:00 AM 0.00 0.0 M M M Cool this morning in the upper 40s.
9/20/2017 5:55 AM 0.00 0.0 M M M
9/21/2017 6:00 AM 0.00 0.0 M M M
9/22/2017 6:00 AM 0.00 0.0 M M M
9/23/2017 7:00 AM 0.00 0.0 M M M
9/24/2017 8:00 AM 0.00 0.0 M M M
9/25/2017 4:50 AM 0.00 0.0 M M M
9/26/2017 4:50 AM 0.00 0.0 M M M
9/27/2017 5:00 AM 0.00 0.0 M M M
9/28/2017 5:00 AM 0.00 0.0 M M M Dry for 10+ days now. Refreshing breeze this morning.
9/29/2017 5:00 AM 0.00 0.0 M M M
9/30/2017 9:30 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/8/2016 11/11/2016 9:00 AM 4 0.28 0.0 0.00 Rained on Nov. 9
1/12/2017 1/16/2017 11:00 AM 5 0.41 0.0 0.00 Sleet, freezing rain and rain on Jan. 14.
3/31/2017 4/04/2017 6:00 AM 5 1.31 0.0 0.00 Most of the rain fell on Friday, March 31.
6/9/2017 6/12/2017 5:55 AM 4 0.00 0.0 0.00
7/23/2017 7/24/2017 5:00 AM 2 0.41 0.0 0.00 Multiple thunderstorms rolled thru Saturday afternoon through Sunday night
8/13/2017 8/14/2017 6:00 AM 2 1.26 0.0 0.00 Thunderstorms Saturday evening
9/10/2017 9/19/2017 6:00 AM 10 0.10 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