Station Overview Station Location
Station Number MD-HW-25 Latitude 39.29703
Station Name Ellicott City 1.7 N Longitude -76.83993
County Howard Elevation (ft) 476



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 3.76 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 10 3.67 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 10 3.50 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 11 3.25 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 11 3.03 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 11 4.03 1.54 17 1.54 17 0.00 0 0 7 1 0.0 0 0
April 11 3.59 4.58 29 4.58 29 0.00 0 0 16 3 0.0 0 0
May 11 4.55 2.54 27 2.41 22 0.13 5 1 13 1 0.0 0 0
June 11 3.94 0.29 24 0.28 16 0.01 8 2 3 2 0.0 0 0
July 11 4.03 4.72 18 1.51 10 3.21 8 1 4 1 0.0 0 0
Aug 11 3.25 3.10 14 3.10 14 0.00 0 0 7 2 0.0 0 0
Sept 11 4.09 13.86 18 13.86 18 0.00 0 0 13 1 0.0 0 0
Water Year Totals: 44.69" 30.63" 147 days 27.28" 126 3.35" 21 days 4 63 days 11 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
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 0.00
3/16/2011 0.67
3/17/2011 0.00
3/18/2011 0.00
3/19/2011 0.00
3/20/2011 0.00
3/21/2011 0.09
3/22/2011 0.16
3/23/2011 0.11
3/24/2011 0.29
3/25/2011 0.02
3/26/2011 0.00
3/27/2011 T
3/28/2011 0.00
3/29/2011 0.00
3/30/2011 0.00
3/31/2011 0.20
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.23
4/2/2011 T
4/3/2011 0.06
4/4/2011 0.02
4/5/2011 0.27
4/6/2011 0.08
4/7/2011 0.00
4/8/2011 0.10
4/9/2011 0.40
4/10/2011 T
4/11/2011 0.00
4/12/2011 0.00
4/13/2011 0.49
4/14/2011 0.13
4/15/2011 0.00
4/16/2011 0.00
4/17/2011 1.18
4/18/2011 0.00
4/19/2011 0.00
4/20/2011 0.30
4/21/2011 0.00
4/22/2011 0.00
4/23/2011 0.27
4/24/2011 0.14
4/25/2011 0.48
4/26/2011 0.00
4/27/2011 T
4/28/2011 0.20
4/29/2011 0.23
4/30/2011
5/1/2011
5/2/2011 0.09
5/3/2011 0.01
5/4/2011 0.39
5/5/2011 0.18
5/6/2011 0.00
5/7/2011
5/8/2011
5/9/2011 0.00
5/10/2011 0.00
5/11/2011 0.00
5/12/2011 0.00
5/13/2011 T
5/14/2011 0.01
5/15/2011 0.19
5/16/2011 0.16
5/17/2011 0.11
5/18/2011 0.73
5/19/2011 0.45
5/20/2011
5/21/2011 0.00
5/22/2011 0.00
5/23/2011 0.02
5/24/2011 0.02
5/25/2011 0.05
5/26/2011 0.00
5/27/2011 **
5/28/2011 **
5/29/2011 **
5/30/2011 **
5/31/2011 0.13
6/1/2011 0.00
6/2/2011 0.00
6/3/2011 **
6/4/2011 **
6/5/2011 0.01
6/6/2011 0.00
6/7/2011
6/8/2011 0.00
6/9/2011 0.00
6/10/2011
6/11/2011
6/12/2011
6/13/2011 0.00
6/14/2011 0.00
6/15/2011 0.00
6/16/2011 0.00
6/17/2011 0.16
6/18/2011
6/19/2011
6/20/2011 0.08
6/21/2011 0.04
6/22/2011 T
6/23/2011 T
6/24/2011 0.00
6/25/2011 **
6/26/2011 **
6/27/2011 **
6/28/2011 **
6/29/2011 0.00
6/30/2011 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2011
7/2/2011
7/3/2011
7/4/2011
7/5/2011 0.00
7/6/2011 0.00
7/7/2011 T
7/8/2011 0.77
7/9/2011
7/10/2011
7/11/2011 0.00
7/12/2011 0.02
7/13/2011 0.00
7/14/2011 0.06
7/15/2011
7/16/2011
7/17/2011
7/18/2011 0.00
7/19/2011
7/20/2011 0.66
7/21/2011
7/22/2011 **
7/23/2011 **
7/24/2011 **
7/25/2011 **
7/26/2011 **
7/27/2011 **
7/28/2011 **
7/29/2011 3.21
7/30/2011
7/31/2011
8/1/2011 0.00
8/2/2011 0.02
8/3/2011 T
8/4/2011 0.55
8/5/2011 T
8/6/2011
8/7/2011
8/8/2011 0.49
8/9/2011
8/10/2011 0.07
8/11/2011 0.00
8/12/2011
8/13/2011
8/14/2011
8/15/2011 0.46
8/16/2011 1.28
8/17/2011
8/18/2011 0.00
8/19/2011
8/20/2011 0.00
8/21/2011
8/22/2011 0.23
8/23/2011 0.00
8/24/2011
8/25/2011
8/26/2011
8/27/2011
8/28/2011
8/29/2011
8/30/2011
8/31/2011
9/1/2011
9/2/2011 0.36
9/3/2011
9/4/2011
9/5/2011
9/6/2011 1.19
9/7/2011 1.32
9/8/2011 8.49
9/9/2011
9/10/2011
9/11/2011
9/12/2011 0.22
9/13/2011 0.00
9/14/2011 0.00
9/15/2011 0.16
9/16/2011
9/17/2011
9/18/2011
9/19/2011 0.00
9/20/2011 0.00
9/21/2011 0.05
9/22/2011 0.13
9/23/2011 0.10
9/24/2011 1.05
9/25/2011 T
9/26/2011 0.01
9/27/2011
9/28/2011 0.01
9/29/2011 0.77
9/30/2011



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
3/15/2011 7:00 AM 0.00 0.0 M M M
3/16/2011 7:00 AM 0.67 M M M M Temp @ 7:00 am: 41.4°F
3/17/2011 7:00 AM 0.00 0.0 M M M Temp @7:00am 40.6°F
3/18/2011 7:00 AM 0.00 0.0 M M M Temp @7:00am 53.1°F
3/19/2011 7:00 AM 0.00 0.0 M M M Temp @7:00am 57.2°F
3/20/2011 7:00 AM 0.00 0.0 M M M Temp @7:00am 37.6°F
3/21/2011 7:00 AM 0.09 M M M M Temp @7:00am 45.2°F
3/22/2011 7:00 AM 0.16 M M M M Temp @7:00am 51.4°F
3/23/2011 7:00 AM 0.11 M M M M -DZ/42.2°F @0700
3/24/2011 7:00 AM 0.29 M M M M -DZ / 39.6°F @0700
3/25/2011 7:00 AM 0.02 M M M M CLR / 28.6°F @ 0700
3/26/2011 7:00 AM 0.00 0.0 M M M FEW / 26.0°F @ 0700
3/27/2011 7:00 AM T T M T M OVC / 27.9°F @ 0700
3/28/2011 7:00 AM 0.00 0.0 M M M SCT / 27.4°F @ 0700
3/29/2011 7:00 AM 0.00 0.0 M M M FEW / 30.6°F @ 0700
3/30/2011 7:00 AM 0.00 0.0 M M M OVC / 35.7°F @ 0700
3/31/2011 7:00 AM 0.20 M M M M -DZ / 34.7°F @ 0700
4/1/2011 7:00 AM 0.23 M M M M -RA / 34.1°F @ 0700
4/2/2011 7:00 AM T M M M M BKN / 35.3°F @ 0700
4/3/2011 7:00 AM 0.06 M M M M CLR / 37.5°F @ 0700
4/4/2011 7:00 AM 0.02 M M M M BKN / 43.0°F @ 0700
4/5/2011 7:00 AM 0.27 M M M M -RA / 57.4°F @ 0700
4/6/2011 7:00 AM 0.08 M M M M FEW / 34.4°F @ 0700
4/7/2011 7:00 AM 0.00 0.0 M M M 7 day consecutive rainfall, 3/30-4/5: Total - 0.88in
4/8/2011 7:00 AM 0.10 M M M M @ 0700: -RA / 43.5°F
4/9/2011 7:00 AM 0.40 M M M M @ 0700: OVC / 40.7°F
4/10/2011 7:00 AM T M M M M @ 0700: OVC / 47.8°F
4/11/2011 7:00 AM 0.00 0.0 M M M @ 0700: SCT / 57.0°F
4/12/2011 7:00 AM 0.00 0.0 M M M @ 0700: OVC / 63.4°F
4/13/2011 7:00 AM 0.49 M M M M @ 0700: -DZ / 46.6°F
4/14/2011 7:00 AM 0.13 M M M M @ 0700: SCT / 43.1°F
4/15/2011 7:00 AM 0.00 0.0 M M M @ 0700: SCT / 47.3°F
4/16/2011 7:00 AM 0.00 0.0 M M M @ 0700: OVC / 47.5°F
4/17/2011 7:00 AM 1.18 M M M M @ 0700: SCT / 46.9°F
4/18/2011 7:00 AM 0.00 0.0 M M M @ 0700 - 4/18: OVC / 49.7°F
4/19/2011 7:00 AM 0.00 0.0 M M M 4/19 @ 0700: OVC - 56.1°F
4/20/2011 7:00 AM 0.30 M M M M 4/20 @ 0700: BKN / 50.7°F
4/21/2011 7:00 AM 0.00 0.0 M M M 4/21 @ 0700: BKN / 49.4°F
4/22/2011 7:00 AM 0.00 0.0 M M M 4/22 @ 0700: BKN / 42.2°F
4/23/2011 7:00 AM 0.27 M M M M 4/23 @ 0700: -DZ / 44.8°F
4/24/2011 7:00 AM 0.14 M M M M 4/24 @ 0700: BKN / 60.1°F
4/25/2011 7:00 AM 0.48 M M M M 4/25 @ 0700: BKN / 60.2°F
4/26/2011 7:00 AM 0.00 0.0 M M M 4/27 @ 0700: FEW / 65.9°F
4/27/2011 7:00 AM T M M M M 4/27 @ 0700: BKN / 67.5°F
4/28/2011 7:00 AM 0.20 M M M M 4/28 @ 0700: RA / 70.3°F
4/29/2011 7:00 AM 0.23 M M M M 4/29 @ 0700: CLR / 53.2°F
5/2/2011 7:00 AM 0.09 M M M M 5/2 @ 0700: OVC / 53.7°F
5/3/2011 7:00 AM 0.01 M M M M 5/3 @ 0700: SCT / 59.9°F
5/4/2011 7:00 AM 0.39 M M M M 5/4 @ 0700: -RA / 46.2°F
5/5/2011 7:00 AM 0.18 M M M M 5/5 @ 0700: FEW / 44.5°F
5/6/2011 7:00 AM 0.00 0.0 M M M 5/6 @ 0700: FEW / 41.2°F
5/9/2011 7:00 AM 0.00 0.0 M M M 5/9 @ 0700: FEW / 51.3°F
5/10/2011 7:00 AM 0.00 0.0 M M M 5/10 @ 0700: SCT / 49.1°F
5/11/2011 7:00 AM 0.00 0.0 M M M 5/11 @ 0700: BKN / 56.1°F
5/12/2011 7:00 AM 0.00 0.0 M M M 5/12 @ 0700: SCT / 51.8°F
5/13/2011 7:00 AM T M M M M 5/13 @ 0700: OVC / 56.8°F
5/14/2011 7:00 AM 0.01 M M M M 5/14 @ 0700: OVC / 57.8°F
5/15/2011 7:00 AM 0.19 M M M M 5/15 @0700: OVC / 62.0°F
5/16/2011 7:00 AM 0.16 M M M M 5/16 @ 0700: BKN / 59.0°F
5/17/2011 7:00 AM 0.11 M M M M 5/17 @0700: OVC / 61.8°F
5/18/2011 7:00 AM 0.73 M M M M 5/18 @ 0700: OVC / 61.6°F
5/19/2011 7:00 AM 0.45 M M M M 5/19 @ 0700: BKN / 58.0°F
5/21/2011 7:00 AM 0.00 0.0 M M M 5/21 @ 0700: CLR / 55.1°F
5/22/2011 7:00 AM 0.00 0.0 M M M 5/22 @ 0700: BKN / 60.7°F
5/23/2011 7:00 AM 0.02 M M M M 5/23 @ 0700: OVC / 64.4°F
5/24/2011 7:00 AM 0.02 M M M M 5/24 @ 0700: BKN / 68.7°F
5/25/2011 7:00 AM 0.05 M M M M 5/25 @ 0700: SCT / 60.9°F
5/26/2011 7:00 AM 0.00 0.0 M M M 5/26 @ 0700: FEW / 68.9°F
6/1/2011 7:00 AM 0.00 0.0 M M M 6/1 @ 0700: FEW / 74.1°F
6/2/2011 7:00 AM 0.00 0.0 M M M 6/2 @ 0700: FEW / 68.6°F
6/6/2011 7:00 AM 0.00 0.0 M M M 6/6 @ 0700: SCT / 61.7°F
6/8/2011 7:00 AM 0.00 0.0 M M M 6/8 @ 0700: FEW / 67.4°F
6/9/2011 7:00 AM 0.00 0.0 M M M 6/9 @ 0700: FEW / 76.9°F
6/13/2011 7:00 AM 0.00 0.0 M M M 6/13 @ 0700: SCT / 59.2°F
6/14/2011 7:00 AM 0.00 0.0 M M M 6/14 @ 0700: CLR / 58.1°F
6/15/2011 7:00 AM 0.00 0.0 M M M 6/15 @ 0700: FEW / 53.9°F
6/16/2011 7:00 AM 0.00 0.0 M M M 6/16 @ 0700: BKN / 58.3°F
6/17/2011 7:00 AM 0.16 M M M M 6/17 @ 0700: BKN / 61.8°F
6/20/2011 7:00 AM 0.08 0.0 M M M 6/20 @ 0700: -RA / 65.2°F
6/21/2011 7:00 AM 0.04 M M M M 6/21 @ 0700: OVC / 67.3°F
6/22/2011 7:00 AM T M M M M 6/22 @ 0700: BKN / 70.4°F
6/23/2011 7:00 AM T M M M M 6/23 @ 0700: BKN / 74.7°F
6/24/2011 7:00 AM 0.00 0.0 M M M 6/24 @ 0700: SCT / 70.9°F
6/30/2011 7:00 AM 0.00 0.0 M M M 6/30 @ 0700: FEW / 61.2°F
7/5/2011 7:00 AM 0.00 0.0 M M M
7/6/2011 7:00 AM 0.00 0.0 M M M
7/7/2011 7:00 AM T M M M M
7/8/2011 7:00 AM 0.77 M M M M
7/11/2011 7:00 AM 0.00 0.0 M M M
7/12/2011 7:00 AM 0.02 M M M M
7/13/2011 7:00 AM 0.00 0.0 M M M
7/14/2011 7:00 AM 0.06 M M M M
7/18/2011 7:00 AM 0.00 0.0 M M M
7/20/2011 7:00 AM 0.66 M M M M
8/1/2011 7:00 AM 0.00 0.0 M M M
8/2/2011 7:00 AM 0.02 M M M M
8/3/2011 7:00 AM T M M M M
8/4/2011 7:00 AM 0.55 M M M M
8/5/2011 7:00 AM T M M M M
8/8/2011 7:00 AM 0.49 M M M M
8/10/2011 7:00 AM 0.07 M M M M
8/11/2011 7:00 AM 0.00 0.0 M M M
8/15/2011 7:00 AM 0.46 M M M M
8/16/2011 7:00 AM 1.28 M M M M
8/18/2011 7:00 AM 0.00 0.0 M M M
8/20/2011 7:00 AM 0.00 0.0 M M M
8/22/2011 7:00 AM 0.23 M M M M
8/23/2011 7:00 AM 0.00 0.0 M M M
9/2/2011 7:00 AM 0.36 M M M M
9/6/2011 7:00 AM 1.19 M M M M
9/7/2011 7:00 AM 1.32 M M M M
9/8/2011 7:00 AM 8.49 M M M M
9/12/2011 7:00 AM 0.22 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 0.16 M 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 0.05 M M M M
9/22/2011 7:00 AM 0.13 M M M M
9/23/2011 7:00 AM 0.10 M M M M
9/24/2011 7:00 AM 1.05 M M M M
9/25/2011 7:00 AM T M M M M
9/26/2011 7:00 AM 0.01 M M M M
9/28/2011 7:00 AM 0.01 M M M M
9/29/2011 7:00 AM 0.77 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
5/27/2011 5/31/2011 7:00 AM 5 0.13 M M
6/3/2011 6/05/2011 7:00 AM 3 0.01 M M
6/25/2011 6/29/2011 12:00 AM 5 0.00 M M
7/22/2011 7/29/2011 8:30 AM 8 3.21 M M Away on vacation



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