Station Overview Station Location
Station Number MD-HW-18 Latitude 39.2361
Station Name Columbia 2.3 N Longitude -76.8605
County Howard Elevation (ft) 407



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 3.71 6.29 31 6.29 31 0.00 0 0 15 3 0.0 0 0
Nov 09 3.61 4.31 30 4.31 30 0.00 0 0 13 0 0.0 0 0
Dec 09 3.48 7.52 31 7.52 31 0.00 0 0 12 1 28.9 4 13
Jan 10 3.15 2.43 31 2.43 31 0.00 0 0 9 5 8.3 5 10
Feb 10 2.95 5.32 28 5.32 28 0.00 0 0 9 4 54.7 8 28
March 10 4.03 5.13 31 5.13 31 0.00 0 0 15 0 0.5 1 8
April 10 3.54 3.00 30 3.00 30 0.00 0 0 8 0 0.0 0 0
May 10 4.47 2.89 31 2.89 31 0.00 0 0 13 4 0.0 0 0
June 10 3.89 1.10 30 1.10 30 0.00 0 0 8 6 0.0 0 0
July 10 3.99 5.80 31 5.80 31 0.00 0 0 9 1 0.0 0 0
Aug 10 3.35 4.15 31 4.15 31 0.00 0 0 15 2 0.0 0 0
Sept 10 4.04 4.05 30 4.05 30 0.00 0 0 7 0 0.0 0 0
Water Year Totals: 44.21" 51.99" 365 days 51.99" 365 0.00" 0 days 0 133 days 26 days 92.4" 18 days 59 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 T
10/2/2009 0.00
10/3/2009 0.03
10/4/2009 0.00
10/5/2009 0.00
10/6/2009 0.00
10/7/2009 0.04
10/8/2009 0.00
10/9/2009 0.02
10/10/2009 0.01
10/11/2009 0.01
10/12/2009 0.00
10/13/2009 0.00
10/14/2009 0.00
10/15/2009 0.08
10/16/2009 0.82
10/17/2009 0.88
10/18/2009 1.75
10/19/2009 0.01
10/20/2009 0.00
10/21/2009 0.00
10/22/2009 0.00
10/23/2009 0.00
10/24/2009 0.05
10/25/2009 0.54
10/26/2009 0.00
10/27/2009 0.54
10/28/2009 1.49
10/29/2009 T
10/30/2009 T
10/31/2009 0.02
11/1/2009 0.37
11/2/2009 0.10
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 0.00
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.11
11/12/2009 0.89
11/13/2009 0.25
11/14/2009 0.49
11/15/2009 0.03
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.00
11/19/2009 0.01
11/20/2009 0.63
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 0.84
11/25/2009 0.18
11/26/2009 0.13
11/27/2009 0.28
11/28/2009 0.00
11/29/2009 0.00
11/30/2009 0.00
12/1/2009 0.23
12/2/2009 0.00
12/3/2009 1.01
12/4/2009 0.00
12/5/2009 0.02
12/6/2009 0.75
12/7/2009 0.00
12/8/2009 0.00
12/9/2009 1.46
12/10/2009 T
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 0.09
12/14/2009 0.73
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 1.14
12/21/2009 0.00
12/22/2009 0.00
12/23/2009 0.00
12/24/2009 0.00
12/25/2009 0.00
12/26/2009 1.24
12/27/2009 0.19
12/28/2009 0.00
12/29/2009 0.00
12/30/2009 0.00
12/31/2009 0.21
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.25
1/2/2010 0.00
1/3/2010 0.00
1/4/2010 0.00
1/5/2010 T
1/6/2010 0.00
1/7/2010 0.00
1/8/2010 0.10
1/9/2010 T
1/10/2010 0.00
1/11/2010 0.00
1/12/2010 T
1/13/2010 0.00
1/14/2010 0.00
1/15/2010 0.00
1/16/2010 0.00
1/17/2010 T
1/18/2010 0.78
1/19/2010 0.00
1/20/2010 0.02
1/21/2010 0.00
1/22/2010 0.17
1/23/2010 T
1/24/2010 0.00
1/25/2010 0.75
1/26/2010 0.07
1/27/2010 0.01
1/28/2010 0.00
1/29/2010 0.00
1/30/2010 0.00
1/31/2010 0.28
2/1/2010 0.00
2/2/2010 0.00
2/3/2010 0.30
2/4/2010 T
2/5/2010 0.00
2/6/2010 2.78
2/7/2010 0.62
2/8/2010 0.00
2/9/2010 0.00
2/10/2010 0.78
2/11/2010 0.45
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 T
2/18/2010 T
2/19/2010 0.00
2/20/2010 0.00
2/21/2010 0.00
2/22/2010 0.00
2/23/2010 0.30
2/24/2010 0.00
2/25/2010 0.03
2/26/2010 T
2/27/2010 0.02
2/28/2010 0.00
3/1/2010 0.00
3/2/2010 0.00
3/3/2010 0.13
3/4/2010 0.01
3/5/2010 0.00
3/6/2010 0.00
3/7/2010 0.00
3/8/2010 0.00
3/9/2010 0.00
3/10/2010 0.00
3/11/2010 0.00
3/12/2010 0.49
3/13/2010 0.83
3/14/2010 1.82
3/15/2010 0.06
3/16/2010 0.10
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 0.04
3/23/2010 0.39
3/24/2010 0.01
3/25/2010 0.00
3/26/2010 0.44
3/27/2010 0.09
3/28/2010 0.00
3/29/2010 0.52
3/30/2010 0.05
3/31/2010 0.15
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 0.01
4/7/2010 0.00
4/8/2010 0.00
4/9/2010 0.62
4/10/2010 0.00
4/11/2010 0.00
4/12/2010 0.00
4/13/2010 0.00
4/14/2010 0.09
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 0.02
4/18/2010 0.00
4/19/2010 0.00
4/20/2010 0.00
4/21/2010 0.00
4/22/2010 0.38
4/23/2010 0.00
4/24/2010 0.00
4/25/2010 0.19
4/26/2010 1.38
4/27/2010 0.31
4/28/2010 0.00
4/29/2010 0.00
4/30/2010 0.00
5/1/2010 0.00
5/2/2010 0.01
5/3/2010 0.32
5/4/2010 0.02
5/5/2010 0.00
5/6/2010 0.00
5/7/2010 0.00
5/8/2010 0.00
5/9/2010 T
5/10/2010 0.00
5/11/2010 0.00
5/12/2010 0.31
5/13/2010 0.44
5/14/2010 T
5/15/2010 0.35
5/16/2010 0.00
5/17/2010 0.01
5/18/2010 0.35
5/19/2010 0.04
5/20/2010 0.00
5/21/2010 0.00
5/22/2010 0.00
5/23/2010 0.62
5/24/2010 0.05
5/25/2010 T
5/26/2010 T
5/27/2010 0.00
5/28/2010 0.36
5/29/2010 0.01
5/30/2010 0.00
5/31/2010 0.00
6/1/2010 0.00
6/2/2010 0.12
6/3/2010 0.00
6/4/2010 0.15
6/5/2010 T
6/6/2010 T
6/7/2010 0.09
6/8/2010 0.00
6/9/2010 T
6/10/2010 0.24
6/11/2010 0.00
6/12/2010 0.00
6/13/2010 T
6/14/2010 0.00
6/15/2010 0.01
6/16/2010 0.02
6/17/2010 0.26
6/18/2010 0.00
6/19/2010 0.00
6/20/2010 0.00
6/21/2010 0.00
6/22/2010 0.00
6/23/2010 0.00
6/24/2010 0.00
6/25/2010 T
6/26/2010 0.00
6/27/2010 0.00
6/28/2010 T
6/29/2010 0.21
6/30/2010 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010 0.00
7/3/2010 0.00
7/4/2010 0.00
7/5/2010 0.00
7/6/2010 0.00
7/7/2010 0.00
7/8/2010 0.00
7/9/2010 0.00
7/10/2010 0.01
7/11/2010 0.51
7/12/2010 0.00
7/13/2010 1.69
7/14/2010 2.32
7/15/2010 0.29
7/16/2010 0.00
7/17/2010 T
7/18/2010 0.00
7/19/2010 0.26
7/20/2010 0.05
7/21/2010 0.00
7/22/2010 0.00
7/23/2010 0.00
7/24/2010 0.00
7/25/2010 0.00
7/26/2010 0.43
7/27/2010 0.00
7/28/2010 0.00
7/29/2010 0.00
7/30/2010 0.24
7/31/2010 0.00
8/1/2010 0.01
8/2/2010 T
8/3/2010 0.02
8/4/2010 0.30
8/5/2010 0.02
8/6/2010 0.08
8/7/2010 0.00
8/8/2010 0.00
8/9/2010 0.00
8/10/2010 0.00
8/11/2010 0.00
8/12/2010 1.17
8/13/2010 0.56
8/14/2010 0.01
8/15/2010 T
8/16/2010 0.89
8/17/2010 0.01
8/18/2010 0.28
8/19/2010 0.33
8/20/2010 0.00
8/21/2010 0.00
8/22/2010 0.01
8/23/2010 0.13
8/24/2010 0.33
8/25/2010 0.00
8/26/2010 0.00
8/27/2010 0.00
8/28/2010 0.00
8/29/2010 0.00
8/30/2010 0.00
8/31/2010 0.00
9/1/2010 0.00
9/2/2010 0.00
9/3/2010 0.00
9/4/2010 0.00
9/5/2010 0.00
9/6/2010 0.00
9/7/2010 0.00
9/8/2010 0.00
9/9/2010 0.00
9/10/2010 0.00
9/11/2010 0.00
9/12/2010 0.52
9/13/2010 0.23
9/14/2010 0.00
9/15/2010 0.00
9/16/2010 0.00
9/17/2010 0.22
9/18/2010 0.00
9/19/2010 0.00
9/20/2010 0.00
9/21/2010 0.00
9/22/2010 0.00
9/23/2010 0.00
9/24/2010 0.00
9/25/2010 0.00
9/26/2010 0.00
9/27/2010 0.70
9/28/2010 0.54
9/29/2010 0.01
9/30/2010 1.83



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 7:00 AM T 0.0 M M M Very light rain shower Wednesday afternoon.
10/2/2009 7:00 AM 0.00 0.0 M M M
10/3/2009 7:00 AM 0.03 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 7:00 AM 0.00 0.0 M M M
10/7/2009 7:00 AM 0.04 0.0 M M M Light rain shower several hours ago.
10/8/2009 7:00 AM 0.00 0.0 M M M
10/9/2009 7:00 AM 0.02 0.0 M M M
10/10/2009 7:00 AM 0.01 0.0 M M M
10/11/2009 7:00 AM 0.01 0.0 M M M
10/12/2009 7:00 AM 0.00 0.0 M M M
10/13/2009 7:00 AM 0.00 0.0 M M M
10/14/2009 7:00 AM 0.00 0.0 M M M
10/15/2009 7:00 AM 0.08 0.0 M M M Light rain (7 am) with temperature 45. Occasional light rain began 3:20 pm.
10/16/2009 7:00 AM 0.82 0.0 M M M Light rain and drizzle (7am) with temperature 40.
10/17/2009 7:00 AM 0.88 0.0 M M M Light rain (7 am) with occasional moderate rain past few hours. Temperature 42.
10/18/2009 7:00 AM 1.75 0.0 M M M Light rain and breezy with temperature 38.
10/19/2009 7:00 AM 0.01 0.0 M M M Light rain ended Sunday morning. Temperature (7am) 34.
10/20/2009 7:00 AM 0.00 0.0 M M M
10/21/2009 7:00 AM 0.00 0.0 M M M
10/22/2009 7:00 AM 0.00 0.0 M M M
10/23/2009 7:00 AM 0.00 0.0 M M M
10/24/2009 7:00 AM 0.05 0.0 M M M
10/25/2009 7:00 AM 0.54 0.0 M M M Scattered clouds (7am) with temperature 45. Scattered showers and some thunder Saturday afternoon and evening.
10/26/2009 7:00 AM 0.00 0.0 M M M
10/27/2009 7:00 AM 0.54 0.0 M M M Light rain (7am) with temperature 52.
10/28/2009 7:00 AM 1.49 0.0 M M M At 7am, Light drizzle, light rain ended past 15 minutes. Temperature 58.
10/29/2009 7:00 AM T 0.0 M M M At 7am, overcast, temperature 57. Trace of precipitation from light drizzle yesterday morning.
10/30/2009 7:00 AM T 0.0 M M M At 7am, overcast with temperature 52. Some very light drizzle overnight.
10/31/2009 7:00 AM 0.02 0.0 M M M At 7am, overcast with temperature 59. Some drizzle and possibly light rain overnight.
11/1/2009 7:00 AM 0.37 0.0 M M M At 7am, light rain, temperature 50.
11/2/2009 7:00 AM 0.10 0.0 M M M Light rain ended completely by early Sunday afternoon.
11/3/2009 7:00 AM 0.00 0.0 M M M
11/4/2009 7:00 AM 0.00 0.0 M M M At 7am, clear, temperature 32.
11/5/2009 7:00 AM 0.00 0.0 M M M
11/6/2009 7:00 AM 0.00 0.0 M M M
11/7/2009 7:00 AM 0.00 0.0 M M M At 7am, high thin broken clouds with temperature 28. Frost.
11/8/2009 7:00 AM 0.00 0.0 M M M
11/9/2009 7:00 AM 0.00 0.0 M M M
11/10/2009 7:00 AM 0.00 0.0 M M M
11/11/2009 7:00 AM 0.11 0.0 M M M 7am, Light rain, Temperature 48.
11/12/2009 7:00 AM 0.89 0.0 M M M At 7am, light rain with temperature 42.
11/13/2009 7:00 AM 0.25 0.0 M M M At 7am, overcast, breezy, temperature 48. Light rain showers within past 2 hours.
11/14/2009 7:00 AM 0.49 0.0 M M M At 7am, overcast, temperature 52.
11/15/2009 7:00 AM 0.03 0.0 M M M At 7am, high thin broken clouds, temperature 48. Precipitation from light rain and light drizzle Saturday morning.
11/16/2009 7:00 AM 0.00 0.0 M M M
11/17/2009 7:00 AM 0.00 0.0 M M M
11/18/2009 7:00 AM 0.00 0.0 M M M
11/19/2009 7:00 AM 0.01 0.0 M M M At 7am, overcast, light drizzle and fog, temperature 52.
11/20/2009 7:00 AM 0.63 0.0 M M M At 7 am, clear, temperature 45. Thursday evening (about 10 pm), thunderstorm and heavy rain shower.
11/21/2009 7:00 AM 0.00 0.0 M M M
11/22/2009 7:00 AM 0.00 0.0 M M M
11/23/2009 7:00 AM 0.00 0.0 M M M
11/24/2009 7:00 AM 0.84 0.0 M M M At 7am, light rain, temperature 47.
11/25/2009 7:00 AM 0.18 0.0 M M M At 7am, light rain, temperature 50.
11/26/2009 7:00 AM 0.13 0.0 M M M At 7am, dense fog with vsby less 1/4 mile, temperature 43, light rain ended Wednesday afternoon.
11/27/2009 7:00 AM 0.28 0.0 M M M At 7am, broken clouds, temperature 38. Rain showers ended about 2 to 3 hours ago.
11/28/2009 7:00 AM 0.00 0.0 M M M
11/29/2009 7:00 AM 0.00 0.0 M M M
11/30/2009 7:00 AM 0.00 0.0 M M M
12/1/2009 7:00 AM 0.23 0.0 M M M At 7am, clear, temperature 31.
12/2/2009 7:00 AM 0.00 0.0 M M M
12/3/2009 7:00 AM 1.01 0.0 M M M At 7 am, clear, temperature 49. Rain showers ended several hours ago.
12/4/2009 7:00 AM 0.00 0.0 M M M
12/5/2009 7:00 AM 0.02 0.0 M M M At 7am, overcast, very light rain, temperature 39. Rain began about 0400.
12/6/2009 7:00 AM 0.75 3.9 M 2.0 M At 7am, clear, temperature 26. Light rain changed to snow at 9:40am. Snow ended about 7pm.
12/7/2009 7:00 AM 0.00 0.0 M 1.0 M
12/8/2009 7:00 AM 0.00 0.0 M 0.5 M At 7am, overcast, temperature 32, bare spots in snow cover.
12/9/2009 7:00 AM 1.46 T M T M At 7am, light drizzle, rain ended during past hour, temperature 43. Some light snow at onset. Trace of snow on ground from last weekend, not last night.
12/10/2009 7:00 AM T 0.0 M 0.0 M At 7am, scattered clouds, breezy, temperature 35. Precipitation trace from drizzle yesterday morning.
12/11/2009 7:00 AM 0.00 0.0 M 0.0 M
12/12/2009 7:00 AM 0.00 0.0 M M M
12/13/2009 7:30 AM 0.09 0.0 M 0.0 M Light rain.
12/14/2009 7:00 AM 0.73 0.0 M 0.0 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 5.7 M 5.5 M At 7am, Light snow, Temperature 25, 13 to 1 ratio of snow to liquid equivalent.
12/20/2009 7:00 AM 1.14 17.3 M 18.5 M 7am, high broken clouds, temperature 23. Storm total snowfall 5.7 (19th) plus 17.3 (20th) = 23.0 inches
12/21/2009 7:00 AM 0.00 0.0 M 16.0 M At 7am, clear, temperature 25
12/22/2009 7:00 AM 0.00 0.0 M 14.0 M
12/23/2009 7:00 AM 0.00 0.0 M 12.5 M
12/24/2009 7:00 AM 0.00 0.0 M 12.0 M
12/25/2009 7:00 AM 0.00 0.0 M 10.0 M At 7am, overcast, temperature 29.
12/26/2009 7:00 AM 1.24 0.0 M 2.0 M At 7am, light rain, temperature 46. Rain began mid afternoon Christmas with temperature well above freezing. Occasional moderate and heavy rain. Few bare spots in show cover.
12/27/2009 7:00 AM 0.19 0.0 M 0.5 M At 7am, clear, temperature 32. Ground 75% bare with average with depth rounding up to 0.5. Rain ended Saturday morning with drizzle into the afternoon.
12/28/2009 7:00 AM 0.00 0.0 M T M
12/29/2009 7:00 AM 0.00 0.0 M M M
12/30/2009 7:00 AM 0.00 0.0 M M M
12/31/2009 7:00 AM 0.21 2.0 M 2.0 M At 7am, light (occasionally moderate) snow, temperature 28.
1/1/2010 7:00 AM 0.25 0.1 M 1.0 M At 7 am, cloudy, temperature 32. Snowfall (0.1) immediately after yesterday's observation. Most of precipitation was light rain.
1/2/2010 7:00 AM 0.00 0.0 M 0.5 M
1/3/2010 7:00 AM 0.00 0.0 M 0.5 M
1/4/2010 7:00 AM 0.00 0.0 M 0.5 M At 7am, BINOVC, temperature 23, few bare spots in snow cover.
1/5/2010 7:00 AM T T M T M Light snow shower several hours ago. Very thin snow cover from previous snow remains over half of lawn. Temperature 24.
1/6/2010 7:00 AM 0.00 0.0 M T M
1/7/2010 7:00 AM 0.00 0.0 M T M
1/8/2010 7:00 AM 0.10 1.9 M 1.9 M At 7am Broken clouds, temperature 26, snow ended almost 3 hours ago. Ratio 19-1.
1/9/2010 7:00 AM T 0.1 M 1.0 M
1/10/2010 7:00 AM 0.00 0.0 M 1.0 M
1/11/2010 7:00 AM 0.00 0.0 M 0.5 M
1/12/2010 7:00 AM T T M 0.5 M
1/13/2010 7:00 AM 0.00 0.0 M T M
1/14/2010 7:00 AM 0.00 0.0 M T M
1/15/2010 7:00 AM 0.00 0.0 M T M Remaining snow cover in shaded areas only.
1/16/2010 7:00 AM 0.00 0.0 M M M
1/17/2010 7:00 AM T 0.0 M T M At 7am, light rain, temperature 37. Light rain intermittent past 90 minutes. Besides snow piles, few patches of snow still remain in shaded areas.
1/18/2010 7:00 AM 0.78 0.0 M 0.0 M
1/19/2010 7:00 AM 0.00 0.0 M 0.0 M
1/20/2010 7:00 AM 0.02 T M T M Thin layer of sleet on the ground.
1/21/2010 7:00 AM 0.00 0.0 M 0.0 M
1/22/2010 7:00 AM 0.17 0.1 M T M (7am) Overcast, temperature 34. Light ice pellets and light rain fell overnight.
1/23/2010 7:00 AM T 0.0 M 0.0 M
1/24/2010 7:00 AM 0.00 0.0 M 0.0 M
1/25/2010 7:00 AM 0.75 0.0 M 0.0 M 7am - Windy, overcast, temperature 57. Rain overnight.
1/26/2010 7:00 AM 0.07 0.0 M 0.0 M
1/27/2010 7:00 AM 0.01 0.0 M 0.0 M
1/28/2010 7:00 AM 0.00 0.0 M 0.0 M
1/29/2010 7:00 AM 0.00 0.0 M 0.0 M
1/30/2010 7:00 AM 0.00 0.0 M 0.0 M At 7am, overcast, temperature 19.
1/31/2010 7:00 AM 0.28 6.1 M 5.0 M At 7am high broken clouds, temperature 9.
2/1/2010 7:00 AM 0.00 0.0 M 3.5 M At 7am, clear, temperature 14.
2/2/2010 7:00 AM 0.00 0.0 M 2.0 M
2/3/2010 7:00 AM 0.30 4.9 M 6.5 M Cloudy, temperature 29 (7 am). Snow depth of 6.5 inches includes 1.5 inches from previous events.
2/4/2010 7:00 AM T 0.0 M 3.5 M At 7am, clear, temperature 24. A few sprinkles Wednesday afternoon.
2/5/2010 7:00 AM 0.00 0.0 M 2.5 M
2/6/2010 7:00 AM 2.78 26.4 M 28.5 M At 6:45am, Heavy occasionally moderate snow. Thundersnow around 4:30am. Temperature 28. Snow depth includes 2 inches from previous storm.
2/7/2010 7:00 AM 0.62 7.4 M 32.0 M Storm total snowfall was 33.8 inches. Storm total SWE was 3.40
2/8/2010 7:00 AM 0.00 0.0 M 27.0 M At 7am, clear, temperature 16.
2/9/2010 7:00 AM 0.00 0.0 M 25.0 M
2/10/2010 7:00 AM 0.78 6.1 M 27.0 M At 7am, moderate snow and light snow grains. Freezing rain overnight produced 0.2 inches of ice. Snow turned to freezing rain toward midnight and changed back to snow around 5am.
2/11/2010 7:00 AM 0.45 9.1 M 33.0 M Storm Total Snowfall = 15.2 Storm Total SWE= 1.23
2/12/2010 7:00 AM 0.00 0.0 M 28.0 M
2/13/2010 7:00 AM 0.00 0.0 M 27.0 M
2/14/2010 7:00 AM 0.00 0.0 M 25.0 M
2/15/2010 7:00 AM 0.00 0.0 M 24.0 M
2/16/2010 7:00 AM 0.04 0.4 M 23.0 M At 7am, overcast, temperature 25. Light snow shower ended 0645. Light snow yesterday afternoon turned briefly to light rain before ending (duration 2 hours).
2/17/2010 7:00 AM T T M 22.0 M At 7am, scattered clouds, temperature 24. Light snow shower several hours ago.
2/18/2010 7:00 AM T T M 21.0 M AT 7am, overcast with breaks, temperature 34. Flurries Wednesday.
2/19/2010 7:00 AM 0.00 0.0 M 19.0 M
2/20/2010 7:00 AM 0.00 0.0 M 17.0 M
2/21/2010 7:00 AM 0.00 0.0 M 15.0 M
2/22/2010 7:00 AM 0.00 0.0 M 14.0 M
2/23/2010 7:00 AM 0.30 0.0 M 12.0 M At 7am, overcast, temperature 35. Light rain Monday afternoon and overnight.
2/24/2010 7:00 AM 0.00 0.0 M 11.0 M
2/25/2010 7:00 AM 0.03 0.1 M 11.0 M At 7am, snow flurries, temperature 33. Some light rain and light snow fell yesterday and overnight.
2/26/2010 7:00 AM T T M 9.0 M At 7am, snow flurries, temperature 29. Dusting of snow on ground, blowing off snowboard.
2/27/2010 7:00 AM 0.02 0.3 M 8.5 M At 7am, overcast, temperature 29. Scattered snow showers yesterday and overnight.
2/28/2010 7:00 AM 0.00 0.0 M 8.0 M
3/1/2010 7:00 AM 0.00 0.0 M 6.5 M
3/2/2010 7:00 AM 0.00 0.0 M 5.0 M
3/3/2010 7:00 AM 0.13 0.5 M 4.0 M At 7am, overcast, light drizzle, temperature 36. Snowfall is estimated and much quickly melted. Light rain changed to light snow about 6:30 pm.
3/4/2010 7:00 AM 0.01 0.0 M 3.0 M
3/5/2010 7:00 AM 0.00 0.0 M 2.5 M
3/6/2010 7:00 AM 0.00 0.0 M 1.5 M
3/7/2010 7:00 AM 0.00 0.0 M 1.0 M
3/8/2010 7:00 AM 0.00 0.0 M 0.5 M
3/9/2010 7:00 AM 0.00 0.0 M T M
3/10/2010 7:00 AM 0.00 0.0 M T M
3/11/2010 7:00 AM 0.00 0.0 M T M
3/12/2010 7:00 AM 0.49 0.0 M T M
3/13/2010 7:00 AM 0.83 0.0 M 0.0 M At 7 am, moderate rain, temperature 49. Heavy rain past 15 minutes. Only a few snow piles remain.
3/14/2010 7:00 AM 1.82 0.0 M 0.0 M Daylight Saving Time
3/15/2010 7:00 AM 0.06 0.0 M 0.0 M At 7am, light rain, temperature 44.
3/16/2010 7:00 AM 0.10 0.0 M 0.0 M At 7am, overcast, temperature 42. Few light rain showers yesterday and overnight.
3/17/2010 7:00 AM 0.00 0.0 M 0.0 M
3/18/2010 7:00 AM 0.00 0.0 M 0.0 M
3/19/2010 7:00 AM 0.00 0.0 M 0.0 M
3/20/2010 7:00 AM 0.00 0.0 M 0.0 M
3/21/2010 7:00 AM 0.00 0.0 M 0.0 M
3/22/2010 7:00 AM 0.04 0.0 M 0.0 M At 7am, overcast, temperature 58, rain shower during past hour.
3/23/2010 7:00 AM 0.39 0.0 M 0.0 M At 7am, scattered clouds, temperature 42. Occasional showers yesterday with some thunder in the afternoon.
3/24/2010 7:00 AM 0.01 0.0 M 0.0 M
3/25/2010 7:00 AM 0.00 0.0 M 0.0 M
3/26/2010 7:00 AM 0.44 0.0 M 0.0 M
3/27/2010 7:00 AM 0.09 0.0 M 0.0 M
3/28/2010 7:00 AM 0.00 0.0 M 0.0 M
3/29/2010 7:00 AM 0.52 0.0 M 0.0 M
3/30/2010 7:00 AM 0.05 0.0 M 0.0 M At 7am, overcast, light rain shower, temperature 42.
3/31/2010 7:00 AM 0.15 0.0 M 0.0 M
4/1/2010 7:00 AM 0.00 0.0 M 0.0 M
4/2/2010 7:00 AM 0.00 0.0 M 0.0 M
4/3/2010 7:00 AM 0.00 0.0 M 0.0 M
4/4/2010 7:00 AM 0.00 0.0 M 0.0 M
4/5/2010 7:00 AM 0.00 0.0 M 0.0 M
4/6/2010 7:00 AM 0.01 0.0 M 0.0 M At 7am, overcast, temperature 61. Light rain shower from 0630 to 0645.
4/7/2010 7:00 AM 0.00 0.0 M 0.0 M
4/8/2010 7:00 AM 0.00 0.0 M 0.0 M
4/9/2010 7:00 AM 0.62 0.0 M 0.0 M At 7am, overcast with breaks, temperature 47. Showers began 06:35 pm with occasional thunder 8:30-9 pm.
4/10/2010 7:00 AM 0.00 0.0 M 0.0 M
4/11/2010 7:00 AM 0.00 0.0 M 0.0 M
4/12/2010 7:00 AM 0.00 0.0 M 0.0 M
4/13/2010 7:00 AM 0.00 0.0 M 0.0 M
4/14/2010 7:00 AM 0.09 0.0 M 0.0 M
4/15/2010 7:00 AM 0.00 0.0 M 0.0 M
4/16/2010 7:00 AM 0.00 0.0 M 0.0 M
4/17/2010 7:00 AM 0.02 0.0 M 0.0 M
4/18/2010 7:00 AM 0.00 0.0 M 0.0 M
4/19/2010 7:00 AM 0.00 0.0 M 0.0 M
4/20/2010 7:00 AM 0.00 0.0 M 0.0 M
4/21/2010 7:00 AM 0.00 0.0 M 0.0 M
4/22/2010 7:00 AM 0.38 0.0 M 0.0 M At 7am, overcast, fog, vsby < 1/4mi, rain yesterday ended by evening.
4/23/2010 7:00 AM 0.00 0.0 M 0.0 M
4/24/2010 7:00 AM 0.00 0.0 M 0.0 M
4/25/2010 7:00 AM 0.19 0.0 M 0.0 M
4/26/2010 7:00 AM 1.38 T M 0.0 M Overcast, light rain shower, temperature 51. Thunderstorms with heavy rain showers and pea sized hail both at 8:45pm and again at 10:10 pm last evening.
4/27/2010 7:00 AM 0.31 0.0 M 0.0 M
4/28/2010 7:00 AM 0.00 0.0 M 0.0 M
4/29/2010 7:00 AM 0.00 0.0 M 0.0 M
4/30/2010 7:00 AM 0.00 0.0 M 0.0 M
5/1/2010 7:00 AM 0.00 0.0 M 0.0 M
5/2/2010 7:00 AM 0.01 0.0 M 0.0 M Overcast, temperature 71. Light rain shower within past couple of hours.
5/3/2010 7:00 AM 0.32 0.0 M 0.0 M At 7am, overcast, light rain shower, temperature 70.
5/4/2010 7:00 AM 0.02 0.0 M 0.0 M
5/5/2010 7:00 AM 0.00 0.0 M 0.0 M
5/6/2010 7:00 AM 0.00 0.0 M 0.0 M
5/7/2010 7:00 AM 0.00 0.0 M 0.0 M
5/8/2010 7:00 AM 0.00 0.0 M 0.0 M
5/9/2010 7:00 AM T 0.0 M 0.0 M Very light rain shower (sprinkles) about 8:30 am Saturday.
5/10/2010 7:00 AM 0.00 0.0 M 0.0 M
5/11/2010 7:00 AM 0.00 0.0 M 0.0 M
5/12/2010 7:00 AM 0.31 0.0 M 0.0 M Overcast, temperature 54. Rain showers mainly Tuesday afternoon.
5/13/2010 7:00 AM 0.44 0.0 M 0.0 M
5/14/2010 7:00 AM T 0.0 M 0.0 M
5/15/2010 7:00 AM 0.35 0.0 M 0.0 M High thin cirrostratus overcast, temperature 61. Thunderstorms last evening.
5/16/2010 7:00 AM 0.00 0.0 M 0.0 M
5/17/2010 7:00 AM 0.01 0.0 M 0.0 M Overcast, light rain (began about 0530), temperature 57.
5/18/2010 7:00 AM 0.35 0.0 M 0.0 M Overcast, light rain, temperature 53. A few periods of light rain since yesterday morning.
5/19/2010 7:00 AM 0.04 0.0 M 0.0 M Intermittent light rain ended mid morning Tuesday with some patchy light drizzle into the afternoon.
5/20/2010 7:00 AM 0.00 0.0 M 0.0 M
5/21/2010 7:00 AM 0.00 0.0 M 0.0 M
5/22/2010 7:00 AM 0.00 0.0 M 0.0 M
5/23/2010 7:00 AM 0.62 0.0 M 0.0 M Overcast, light fog, temperature 65. Light rain shower ended just prior to observation (7:00am). Some thunder after midnight.
5/24/2010 7:00 AM 0.05 0.0 M 0.0 M Overcast, light drizzle, light fog, temperature 64.
5/25/2010 7:00 AM T 0.0 M 0.0 M
5/26/2010 7:00 AM T 0.0 M 0.0 M
5/27/2010 7:00 AM 0.00 0.0 M 0.0 M
5/28/2010 7:00 AM 0.36 0.0 M 0.0 M Cloudy, temperature 63. Occasional showers and thunderstorms between 11pm to 4am.
5/29/2010 7:00 AM 0.01 0.0 M 0.0 M Overcast, temperature 66. Light rain shower earlier this morning.
5/30/2010 7:00 AM 0.00 0.0 M 0.0 M
5/31/2010 7:00 AM 0.00 0.0 M 0.0 M
6/1/2010 7:00 AM 0.00 0.0 M 0.0 M
6/2/2010 7:00 AM 0.12 0.0 M 0.0 M
6/3/2010 7:00 AM 0.00 0.0 M 0.0 M
6/4/2010 7:00 AM 0.15 0.0 M 0.0 M Thunderstorm last evening about 5:30pm. Wind gusts estimated 40-50 mph.
6/5/2010 7:00 AM T 0.0 M 0.0 M
6/6/2010 7:00 AM T 0.0 M 0.0 M A few sprinkles Saturday afternoon.
6/7/2010 7:00 AM 0.09 0.0 M 0.0 M Thunderstorm with light rain shower last evening. No significant wind or hail.
6/8/2010 7:00 AM 0.00 0.0 M 0.0 M
6/9/2010 7:30 AM T 0.0 M 0.0 M Overcast, light rain (began 0720am).
6/10/2010 7:00 AM 0.24 0.0 M 0.0 M
6/11/2010 7:00 AM 0.00 0.0 M 0.0 M
6/12/2010 7:00 AM 0.00 0.0 M 0.0 M
6/13/2010 7:00 AM T 0.0 M 0.0 M
6/14/2010 7:00 AM 0.00 0.0 M 0.0 M
6/15/2010 7:00 AM 0.01 0.0 M 0.0 M Brief light rain shower about 7:30pm
6/16/2010 7:00 AM 0.02 0.0 M 0.0 M A few brief light rain showers yesterday afternoon and overnight.
6/17/2010 7:00 AM 0.26 0.0 M 0.0 M
6/18/2010 7:00 AM 0.00 0.0 M 0.0 M
6/19/2010 7:00 AM 0.00 0.0 M 0.0 M
6/20/2010 7:00 AM 0.00 0.0 M 0.0 M
6/21/2010 7:00 AM 0.00 0.0 M 0.0 M
6/22/2010 7:00 AM 0.00 0.0 M 0.0 M
6/23/2010 7:00 AM 0.00 0.0 M 0.0 M Thunder last evening around 8pm. Thunderstorm passed to the south with no precipitation at this location.
6/24/2010 7:00 AM 0.00 0.0 M 0.0 M
6/25/2010 7:00 AM T 0.0 M 0.0 M Few sprinkles Thursday afternoon with frontal passage. High yesterday 98 degrees.
6/26/2010 7:00 AM 0.00 0.0 M 0.0 M
6/27/2010 7:00 AM 0.00 0.0 M 0.0 M
6/28/2010 7:00 AM T 0.0 M 0.0 M Few sprinkles last evening about 6:45 pm. High temperature yesterday 99 degrees with overnight low this morning only 79 degrees.
6/29/2010 7:00 AM 0.21 0.0 M 0.0 M Rain shower began about 1:45pm and Thunderstorm began 2:10pm.
6/30/2010 7:00 AM 0.00 0.0 M 0.0 M
7/1/2010 7:00 AM 0.00 0.0 M 0.0 M
7/2/2010 7:00 AM 0.00 0.0 M 0.0 M
7/3/2010 7:00 AM 0.00 0.0 M 0.0 M
7/4/2010 7:00 AM 0.00 0.0 M 0.0 M
7/5/2010 7:00 AM 0.00 0.0 M 0.0 M
7/6/2010 7:00 AM 0.00 0.0 M 0.0 M
7/7/2010 7:00 AM 0.00 0.0 M 0.0 M
7/8/2010 7:00 AM 0.00 0.0 M 0.0 M
7/9/2010 7:00 AM 0.00 0.0 M 0.0 M
7/10/2010 7:00 AM 0.01 0.0 M 0.0 M Overcast with a light rain shower.
7/11/2010 7:00 AM 0.51 0.0 M 0.0 M Rain showers mainly Saturday morning.
7/12/2010 7:00 AM 0.00 0.0 M 0.0 M
7/13/2010 7:00 AM 1.69 0.0 M 0.0 M Tstm abt 1430 passed to SE w/ no precip. Tstm with hvy rain shower began 1535 (with .70). Tstm (began 2220) with hvy rain shower which began 2240 (with .99).
7/14/2010 7:00 AM 2.32 0.0 M 0.0 M Overcast. Thunderstorms with very heavy rain showers overnight. Precipitation total of 4.52 past 4 days.
7/15/2010 7:00 AM 0.29 0.0 M 0.0 M
7/16/2010 7:00 AM 0.00 0.0 M 0.0 M
7/17/2010 7:00 AM T 0.0 M 0.0 M Brief light rain shower between 12:30am and 1am.
7/18/2010 7:00 AM 0.00 0.0 M 0.0 M
7/19/2010 7:00 AM 0.26 0.0 M 0.0 M Overcast. Thunderstorm began 11:30pm with rain shower (briefly heavy) which ended after midnight.
7/20/2010 7:00 AM 0.05 0.0 M 0.0 M Light rain shower yesterday (Monday) afternoon.
7/21/2010 7:00 AM 0.00 0.0 M 0.0 M
7/22/2010 7:00 AM 0.00 0.0 M 0.0 M
7/23/2010 7:00 AM 0.00 0.0 M 0.0 M
7/24/2010 7:00 AM 0.00 0.0 M 0.0 M
7/25/2010 7:00 AM 0.00 0.0 M 0.0 M
7/26/2010 7:00 AM 0.43 0.0 M 0.0 M
7/27/2010 7:00 AM 0.00 0.0 M 0.0 M
7/28/2010 7:00 AM 0.00 0.0 M 0.0 M
7/29/2010 7:00 AM 0.00 0.0 M 0.0 M
7/30/2010 7:00 AM 0.24 0.0 M 0.0 M Thunderstorm 1pm (.07) and again about 4:30pm (.17).
7/31/2010 7:00 AM 0.00 0.0 M 0.0 M
8/1/2010 7:00 AM 0.01 0.0 M 0.0 M Light rain shower an hour or so after midnight.
8/2/2010 7:00 AM T 0.0 M 0.0 M Overcast, light rain shower during past hour.
8/3/2010 7:00 AM 0.02 0.0 M 0.0 M Occasional light rain showers Monday daytime.
8/4/2010 7:00 AM 0.30 0.0 M 0.0 M
8/5/2010 7:00 AM 0.02 0.0 M 0.0 M
8/6/2010 7:00 AM 0.08 0.0 M 0.0 M
8/7/2010 7:00 AM 0.00 0.0 M 0.0 M
8/8/2010 7:00 AM 0.00 0.0 M 0.0 M
8/9/2010 7:00 AM 0.00 0.0 M 0.0 M
8/10/2010 7:00 AM 0.00 0.0 M 0.0 M
8/11/2010 7:00 AM 0.00 0.0 M 0.0 M
8/12/2010 7:30 AM 1.17 0.0 M 0.0 M At 7:30, thunderstorm and light rain shower. Thunderstorm east moving east. rain showers began about 0600 and thunderstorm began about 0630.
8/13/2010 7:00 AM 0.56 0.0 M 0.0 M Thunderstorms with light rain showers yesterday morning and again yesterday evening. Most precipitation from rain showers overnight.
8/14/2010 7:00 AM 0.01 0.0 M 0.0 M
8/15/2010 7:00 AM T 0.0 M 0.0 M
8/16/2010 7:00 AM 0.89 0.0 M 0.0 M Period of heavy rain showers between Noon and 1pm with some light rain showers before and after.
8/17/2010 7:00 AM 0.01 0.0 M 0.0 M
8/18/2010 7:00 AM 0.28 0.0 M 0.0 M At 7am, light rain shower. Heavier showers past few hours but no thunder.
8/19/2010 7:00 AM 0.33 0.0 M 0.0 M
8/20/2010 7:00 AM 0.00 0.0 M 0.0 M
8/21/2010 7:00 AM 0.00 0.0 M 0.0 M
8/22/2010 7:00 AM 0.01 0.0 M 0.0 M Overcast. Light rain shower about midnight and again past hour. Some light drizzle.
8/23/2010 7:00 AM 0.13 0.0 M 0.0 M Scattered light rain showers Sunday mainly through mid day.
8/24/2010 7:00 AM 0.33 0.0 M 0.0 M Rain showers overnight between about 10:30pm and 1am.
8/25/2010 7:00 AM 0.00 0.0 M 0.0 M
8/26/2010 7:00 AM 0.00 0.0 M 0.0 M
8/27/2010 7:00 AM 0.00 0.0 M 0.0 M
8/28/2010 7:00 AM 0.00 0.0 M 0.0 M
8/29/2010 7:00 AM 0.00 0.0 M 0.0 M
8/30/2010 7:00 AM 0.00 0.0 M 0.0 M
8/31/2010 7:00 AM 0.00 0.0 M 0.0 M
9/1/2010 7:00 AM 0.00 0.0 M 0.0 M
9/2/2010 7:00 AM 0.00 0.0 M 0.0 M
9/3/2010 7:00 AM 0.00 0.0 M 0.0 M
9/4/2010 7:00 AM 0.00 0.0 M 0.0 M
9/5/2010 7:00 AM 0.00 0.0 M M M
9/6/2010 7:00 AM 0.00 0.0 M M M
9/7/2010 7:00 AM 0.00 0.0 M M M
9/8/2010 7:00 AM 0.00 0.0 M M M
9/9/2010 7:00 AM 0.00 0.0 M M M
9/10/2010 7:00 AM 0.00 0.0 M M M
9/11/2010 7:00 AM 0.00 0.0 M M M
9/12/2010 7:00 AM 0.52 0.0 M 0.0 M
9/13/2010 7:00 AM 0.23 0.0 M 0.0 M
9/14/2010 7:00 AM 0.00 0.0 M 0.0 M
9/15/2010 7:00 AM 0.00 0.0 M 0.0 M
9/16/2010 7:00 AM 0.00 0.0 M 0.0 M
9/17/2010 7:00 AM 0.22 0.0 M 0.0 M
9/18/2010 7:00 AM 0.00 0.0 M 0.0 M
9/19/2010 7:00 AM 0.00 0.0 M 0.0 M
9/20/2010 7:00 AM 0.00 0.0 M 0.0 M
9/21/2010 7:00 AM 0.00 0.0 M 0.0 M
9/22/2010 7:00 AM 0.00 0.0 M 0.0 M
9/23/2010 7:00 AM 0.00 0.0 M 0.0 M Thunderstorm between about 7:15 and 7:45 pm yesterday. It passed south of this location but no precipitation was observed.
9/24/2010 7:00 AM 0.00 0.0 M 0.0 M Overcast with visibility less than a half mile in fog.
9/25/2010 7:00 AM 0.00 0.0 M 0.0 M
9/26/2010 7:00 AM 0.00 0.0 M 0.0 M
9/27/2010 7:00 AM 0.70 0.0 M 0.0 M Cloudy with very light rain shower. Occasional rain showers since about 8am Sunday. Heaviest showers overnight.
9/28/2010 7:00 AM 0.54 0.0 M 0.0 M Overcast and breezy. Occasional rain showers past 24 hours. Light rain shower began a few minutes after this observation.
9/29/2010 7:00 AM 0.01 0.0 M 0.0 M
9/30/2010 7:00 AM 1.83 0.0 M 0.0 M Moderate occasionally heavy rain showers.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



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
4/25/2010 8:45 PM 1/4" Pea Size 1/4" Pea Size 1/4" Pea Size Clear Ice 2 1min no damage Continuous True After rain Same time as smaller hail 10-20
4/25/2010 10:10 PM 1/4" Pea Size 1/4" Pea Size 1/4" Pea Size Clear Ice 3 1min no damage Continuous False Same time as rain Same time as smaller hail