Station Overview Station Location
Station Number MD-CR-3 Latitude 39.3715
Station Name Mount Airy 0.2 SE Longitude -77.1567
County Carroll Elevation (ft) 830



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 3.61 4.75 12 1.47 8 3.28 4 1 8 0 0.0 0 0
Nov 09 3.66 2.92 10 2.92 10 0.00 0 0 10 0 0.0 0 0
Dec 09 3.43 4.70 10 4.70 10 0.00 0 0 8 1 26.0 4 5
Jan 10 3.06 2.56 11 2.56 11 0.00 0 0 10 1 7.5 4 4
Feb 10 2.85 5.39 24 5.39 24 0.00 0 0 10 3 57.6 8 20
March 10 3.87 4.15 13 4.15 13 0.00 0 0 11 2 0.2 1 0
April 10 3.50 2.26 10 2.26 10 0.00 0 0 7 0 0.0 0 0
May 10 4.44 1.20 5 1.20 5 0.00 0 0 5 0 0.0 0 0
June 10 3.96 1.10 8 1.10 8 0.00 0 0 7 0 0.0 0 0
July 10 3.85 2.05 8 2.05 8 0.00 0 0 6 2 0.0 0 0
Aug 10 3.25 0.52 3 0.52 3 0.00 0 0 2 1 0.0 0 0
Sept 10 4.17 4.28 5 4.28 5 0.00 0 0 5 0 0.0 0 0
Water Year Totals: 43.65" 35.88" 119 days 32.60" 115 3.28" 4 days 1 89 days 10 days 91.3" 17 days 29 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
10/2/2009
10/3/2009 0.08
10/4/2009
10/5/2009
10/6/2009
10/7/2009 0.02
10/8/2009
10/9/2009 0.16
10/10/2009 0.10
10/11/2009 0.01
10/12/2009
10/13/2009
10/14/2009
10/15/2009 **
10/16/2009 **
10/17/2009 **
10/18/2009 3.28
10/19/2009
10/20/2009
10/21/2009
10/22/2009
10/23/2009
10/24/2009
10/25/2009
10/26/2009
10/27/2009
10/28/2009 1.05
10/29/2009
10/30/2009 0.01
10/31/2009 0.04
11/1/2009 0.49
11/2/2009
11/3/2009
11/4/2009
11/5/2009
11/6/2009
11/7/2009
11/8/2009
11/9/2009
11/10/2009
11/11/2009 0.19
11/12/2009 0.53
11/13/2009 0.07
11/14/2009 0.32
11/15/2009 0.03
11/16/2009
11/17/2009
11/18/2009
11/19/2009 0.07
11/20/2009 0.25
11/21/2009
11/22/2009
11/23/2009
11/24/2009 0.73
11/25/2009 0.24
11/26/2009
11/27/2009
11/28/2009
11/29/2009
11/30/2009
12/1/2009 0.21
12/2/2009
12/3/2009
12/4/2009
12/5/2009
12/6/2009 0.57
12/7/2009
12/8/2009
12/9/2009
12/10/2009
12/11/2009
12/12/2009
12/13/2009
12/14/2009 0.51
12/15/2009 T
12/16/2009
12/17/2009
12/18/2009
12/19/2009 0.44
12/20/2009 1.28
12/21/2009 0.00
12/22/2009
12/23/2009
12/24/2009
12/25/2009
12/26/2009 1.33
12/27/2009 0.18
12/28/2009
12/29/2009
12/30/2009
12/31/2009 0.18
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.12
1/2/2010
1/3/2010
1/4/2010
1/5/2010
1/6/2010 T
1/7/2010
1/8/2010 0.10
1/9/2010 0.01
1/10/2010
1/11/2010
1/12/2010
1/13/2010
1/14/2010
1/15/2010
1/16/2010
1/17/2010 0.08
1/18/2010 0.84
1/19/2010
1/20/2010
1/21/2010
1/22/2010 0.18
1/23/2010 0.02
1/24/2010
1/25/2010 0.58
1/26/2010 0.42
1/27/2010
1/28/2010
1/29/2010
1/30/2010
1/31/2010 0.21
2/1/2010 0.00
2/2/2010 0.00
2/3/2010 0.29
2/4/2010 0.00
2/5/2010 0.00
2/6/2010 2.87
2/7/2010 0.29
2/8/2010 0.00
2/9/2010 0.00
2/10/2010 0.94
2/11/2010 0.48
2/12/2010 0.00
2/13/2010 0.00
2/14/2010
2/15/2010
2/16/2010 0.05
2/17/2010 T
2/18/2010 T
2/19/2010 0.00
2/20/2010 0.00
2/21/2010 0.00
2/22/2010
2/23/2010 0.39
2/24/2010 0.01
2/25/2010 0.05
2/26/2010 T
2/27/2010 0.02
2/28/2010
3/1/2010 T
3/2/2010
3/3/2010 0.10
3/4/2010 T
3/5/2010
3/6/2010
3/7/2010
3/8/2010
3/9/2010
3/10/2010
3/11/2010
3/12/2010 0.51
3/13/2010 0.60
3/14/2010 1.30
3/15/2010 0.07
3/16/2010
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010 0.02
3/23/2010 0.38
3/24/2010 0.05
3/25/2010
3/26/2010 0.37
3/27/2010 0.08
3/28/2010
3/29/2010 0.67
3/30/2010
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010
4/2/2010
4/3/2010
4/4/2010
4/5/2010
4/6/2010
4/7/2010
4/8/2010
4/9/2010 0.36
4/10/2010
4/11/2010
4/12/2010
4/13/2010
4/14/2010 0.07
4/15/2010
4/16/2010
4/17/2010 0.12
4/18/2010
4/19/2010
4/20/2010
4/21/2010 0.00
4/22/2010 0.15
4/23/2010
4/24/2010 0.00
4/25/2010 0.26
4/26/2010 1.03
4/27/2010 0.27
4/28/2010 0.00
4/29/2010
4/30/2010
5/1/2010
5/2/2010
5/3/2010 0.28
5/4/2010
5/5/2010
5/6/2010
5/7/2010
5/8/2010
5/9/2010
5/10/2010
5/11/2010
5/12/2010 0.34
5/13/2010 0.35
5/14/2010 0.01
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 0.22
5/29/2010
5/30/2010
5/31/2010
6/1/2010
6/2/2010
6/3/2010
6/4/2010 0.21
6/5/2010
6/6/2010
6/7/2010 0.03
6/8/2010
6/9/2010 0.00
6/10/2010 0.41
6/11/2010
6/12/2010
6/13/2010 0.36
6/14/2010
6/15/2010 0.02
6/16/2010 0.05
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
6/29/2010 0.02
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 0.26
7/11/2010 0.15
7/12/2010
7/13/2010 0.40
7/14/2010 0.64
7/15/2010
7/16/2010
7/17/2010
7/18/2010
7/19/2010 T
7/20/2010
7/21/2010 T
7/22/2010
7/23/2010
7/24/2010
7/25/2010
7/26/2010 0.23
7/27/2010
7/28/2010
7/29/2010
7/30/2010 0.37
7/31/2010
8/1/2010 T
8/2/2010
8/3/2010
8/4/2010
8/5/2010 0.22
8/6/2010
8/7/2010
8/8/2010
8/9/2010
8/10/2010
8/11/2010
8/12/2010
8/13/2010 M
8/14/2010
8/15/2010
8/16/2010
8/17/2010
8/18/2010
8/19/2010 0.30
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 0.04
9/27/2010 0.29
9/28/2010 1.50
9/29/2010 0.20
9/30/2010 2.25



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/3/2009 7:00 AM 0.08 M M M M
10/7/2009 7:00 AM 0.02 M M M M
10/9/2009 7:00 AM 0.16 M M M M
10/10/2009 10:00 AM 0.10 M M M M
10/11/2009 7:00 AM 0.01 M M M M
10/28/2009 7:15 AM 1.05 M M M M
10/30/2009 7:00 AM 0.01 M M M M
10/31/2009 7:00 AM 0.04 M M M M
11/1/2009 7:00 AM 0.49 M M M M
11/11/2009 7:00 AM 0.19 M M M M
11/12/2009 7:00 AM 0.53 M M M M
11/13/2009 6:30 AM 0.07 M M M M
11/14/2009 7:00 AM 0.32 M M M M
11/15/2009 7:00 AM 0.03 M M M M
11/19/2009 7:00 AM 0.07 M M M M
11/20/2009 7:00 AM 0.25 M M M M
11/24/2009 7:00 AM 0.73 M M M M
11/25/2009 7:00 AM 0.24 M M M M
12/1/2009 7:00 AM 0.21 M M M M
12/6/2009 7:00 AM 0.57 5.5 M 5.5 M
12/14/2009 7:00 AM 0.51 M M M M
12/15/2009 7:00 AM T M M M M
12/19/2009 7:40 AM 0.44 6.5 M 6.5 M Snow started falling approximately 10 pm the previous evening
12/20/2009 7:00 AM 1.28 12.5 M 19.0 1.72
12/21/2009 7:00 AM 0.00 0.0 M 15.0 M
12/26/2009 9:00 AM 1.33 M M M M
12/27/2009 7:00 AM 0.18 M M M M
12/31/2009 8:00 AM 0.18 1.5 M 1.5 M
1/1/2010 8:00 AM 0.12 0.0 M 0.5 M
1/6/2010 7:00 AM T T M T M
1/8/2010 7:00 AM 0.10 1.5 M 1.5 M
1/9/2010 7:00 AM 0.01 0.2 M 0.5 M
1/17/2010 8:15 AM 0.08 M M M M
1/18/2010 7:00 AM 0.84 M M M M
1/22/2010 7:00 AM 0.18 0.1 M T M Accumulation is as ice/sleet; no actual snowfall observed
1/23/2010 7:30 AM 0.02 0.0 M 0.0 M
1/25/2010 7:00 AM 0.58 M M M M
1/26/2010 7:00 AM 0.42 M M M M
1/31/2010 8:00 AM 0.21 5.7 0.22 5.5 M
2/1/2010 7:00 AM 0.00 0.0 M 1.5 M
2/2/2010 7:00 AM 0.00 0.0 M 1.0 M
2/3/2010 6:30 AM 0.29 5.7 M 6.0 M
2/4/2010 7:00 AM 0.00 0.0 M 1.0 M
2/5/2010 7:00 AM 0.00 0.0 M 0.5 M
2/6/2010 9:45 AM 2.87 24.5 M 24.5 M
2/7/2010 8:15 AM 0.29 4.0 M 26.5 M
2/8/2010 7:00 AM 0.00 0.0 M 24.5 M
2/9/2010 7:00 AM 0.00 0.0 M 23.0 M
2/10/2010 7:00 AM 0.94 8.5 M 29.8 M
2/11/2010 7:00 AM 0.48 13.0 M 42.0 M Melted snow amount will not be representative due to high wind conditions that existed throughout the duration of the snowstorm on 2/10
2/12/2010 7:00 AM 0.00 0.0 M 38.5 M
2/13/2010 7:00 AM 0.00 0.0 M 35.0 M
2/16/2010 7:00 AM 0.05 0.5 M 24.0 M
2/17/2010 6:30 AM T T M 22.0 M
2/18/2010 6:30 AM T T M 22.5 M
2/19/2010 7:00 AM 0.00 0.0 M 17.0 M
2/20/2010 7:00 AM 0.00 0.0 M 13.0 M
2/21/2010 7:00 AM 0.00 0.0 M 10.5 M
2/23/2010 7:00 AM 0.39 0.0 M 10.0 M
2/24/2010 7:00 AM 0.01 M M M M
2/25/2010 7:00 AM 0.05 1.1 M M M
2/26/2010 7:00 AM T T M M M
2/27/2010 7:00 AM 0.02 0.3 M M M
3/1/2010 7:00 AM T T M M M
3/3/2010 7:00 AM 0.10 0.2 M M M
3/4/2010 7:00 AM T M M M M
3/12/2010 7:00 AM 0.51 M M M M
3/13/2010 9:15 AM 0.60 M M M M
3/14/2010 9:00 AM 1.30 M M M M
3/15/2010 7:00 AM 0.07 M M M M
3/22/2010 7:00 AM 0.02 M M M M
3/23/2010 7:00 AM 0.38 M M M M
3/24/2010 7:00 AM 0.05 M M M M
3/26/2010 5:40 AM 0.37 M M M M
3/27/2010 7:00 AM 0.08 M M M M
3/29/2010 6:30 AM 0.67 M M M M
4/9/2010 7:00 AM 0.36 M M M M
4/14/2010 7:00 AM 0.07 M M M M
4/17/2010 7:00 AM 0.12 M M M M
4/21/2010 7:00 AM 0.00 0.0 M M M
4/22/2010 7:00 AM 0.15 M M M M
4/24/2010 7:00 AM 0.00 0.0 M M M
4/25/2010 8:30 AM 0.26 M M M M
4/26/2010 8:00 AM 1.03 M M M M
4/27/2010 7:00 AM 0.27 M M M M
4/28/2010 7:00 AM 0.00 0.0 M M M
5/3/2010 7:00 AM 0.28 M M M M
5/12/2010 6:25 AM 0.34 M M M M
5/13/2010 7:00 AM 0.35 M M M M
5/14/2010 7:00 AM 0.01 M M M M
5/28/2010 7:00 AM 0.22 M M M M
6/4/2010 7:00 AM 0.21 M M M M
6/7/2010 7:00 AM 0.03 M M M M
6/9/2010 6:30 AM 0.00 0.0 M M M
6/10/2010 7:00 AM 0.41 M M M M
6/13/2010 7:00 AM 0.36 M M M M
6/15/2010 7:00 AM 0.02 M M M M
6/16/2010 7:00 AM 0.05 M M M M
6/29/2010 7:00 AM 0.02 M M M M
7/10/2010 8:00 AM 0.26 M M M M
7/11/2010 7:00 AM 0.15 M M M M
7/13/2010 7:00 AM 0.40 M M M M
7/14/2010 9:00 AM 0.64 M M M M
7/19/2010 7:00 AM T M M M M
7/21/2010 7:00 AM T M M M M
7/26/2010 7:00 AM 0.23 M M M M
7/30/2010 7:00 AM 0.37 M M M M
8/1/2010 7:00 AM T M M M M
8/5/2010 7:00 AM 0.22 M M M M
8/13/2010 6:00 AM M M M M M (edit: daily precip initially recorded as 6.30". changed to NA due to inconsistency with nearby data. P.G.)
8/19/2010 7:00 AM 0.30 M M M M
9/26/2010 8:00 AM 0.04 M M M M
9/27/2010 6:45 AM 0.29 M M M M
9/28/2010 7:00 AM 1.50 M M M M
9/29/2010 7:00 AM 0.20 M M M M
9/30/2010 7:00 AM 2.25 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/15/2009 10/18/2009 5:00 PM 4 3.28 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