Station Overview Station Location
Station Number PA-DP-11 Latitude 40.2629
Station Name Hummelstown 0.6 ESE Longitude -76.7031
County Dauphin 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 3.59 6.26 31 6.26 31 0.00 0 0 13 3 0.0 0 0
Nov 09 3.45 1.88 30 1.88 30 0.00 0 0 10 0 0.0 0 0
Dec 09 3.26 5.24 31 5.24 31 0.00 0 0 11 0 12.1 5 5
Jan 10 2.97 2.34 31 2.34 31 0.00 0 0 5 4 1.3 1 1
Feb 10 2.70 0.51 17 0.26 15 0.25 2 1 2 1 50.6 7 2
March 10 3.46 0.98 2 0.98 2 0.00 0 0 2 0 0.0 0 0
April 10 3.51 0.38 1 0.38 1 0.00 0 0 1 0 0.0 0 0
May 10 4.05 3.13 1 3.13 1 0.00 0 0 1 0 0.0 0 0
June 10 3.84 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 10 4.16 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 10 3.39 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 10 4.27 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 42.65" 20.72" 144 days 20.47" 142 0.25" 2 days 1 45 days 8 days 64.0" 13 days 8 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 0.00
10/3/2009 T
10/4/2009 0.00
10/5/2009 0.00
10/6/2009 0.00
10/7/2009 0.03
10/8/2009 0.00
10/9/2009 0.03
10/10/2009 0.19
10/11/2009 T
10/12/2009 0.00
10/13/2009 0.00
10/14/2009 0.00
10/15/2009 T
10/16/2009 1.02
10/17/2009 0.99
10/18/2009 0.94
10/19/2009 0.12
10/20/2009 0.00
10/21/2009 0.00
10/22/2009 0.00
10/23/2009 0.00
10/24/2009 0.67
10/25/2009 1.02
10/26/2009 0.00
10/27/2009 0.14
10/28/2009 0.91
10/29/2009 0.19
10/30/2009 0.00
10/31/2009 0.01
11/1/2009 0.12
11/2/2009 0.00
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 0.06
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.01
11/12/2009 0.00
11/13/2009 0.00
11/14/2009 0.06
11/15/2009 0.00
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.00
11/19/2009 0.08
11/20/2009 0.80
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 0.16
11/25/2009 0.42
11/26/2009 0.10
11/27/2009 0.07
11/28/2009 0.00
11/29/2009 0.00
11/30/2009 0.00
12/1/2009 0.08
12/2/2009 0.00
12/3/2009 1.02
12/4/2009 0.00
12/5/2009 0.00
12/6/2009 0.21
12/7/2009 0.00
12/8/2009 0.00
12/9/2009 0.89
12/10/2009 0.38
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 0.00
12/14/2009 0.57
12/15/2009 0.00
12/16/2009 0.00
12/17/2009 0.00
12/18/2009 0.00
12/19/2009 0.08
12/20/2009 0.79
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 0.43
12/27/2009 0.55
12/28/2009 0.00
12/29/2009 0.00
12/30/2009 0.00
12/31/2009 0.24
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.15
1/2/2010 0.00
1/3/2010 0.00
1/4/2010 T
1/5/2010 0.00
1/6/2010 T
1/7/2010 T
1/8/2010 0.03
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 0.85
1/19/2010 0.00
1/20/2010 T
1/21/2010 0.00
1/22/2010 0.00
1/23/2010 0.00
1/24/2010 0.00
1/25/2010 0.83
1/26/2010 0.48
1/27/2010 0.00
1/28/2010 0.00
1/29/2010 0.00
1/30/2010 0.00
1/31/2010 0.00
2/1/2010 0.00
2/2/2010 0.00
2/3/2010 0.24
2/4/2010
2/5/2010
2/6/2010 M
2/7/2010 M
2/8/2010 0.00
2/9/2010 0.00
2/10/2010 M
2/11/2010 M
2/12/2010 0.00
2/13/2010 0.00
2/14/2010 0.00
2/15/2010 0.00
2/16/2010 M
2/17/2010 0.00
2/18/2010 M
2/19/2010 T
2/20/2010 0.00
2/21/2010 0.00
2/22/2010 0.00
2/23/2010 M **
2/24/2010 M 0.25
2/25/2010 0.02
2/26/2010
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
3/13/2010
3/14/2010
3/15/2010
3/16/2010
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010
3/23/2010 0.72
3/24/2010
3/25/2010
3/26/2010 0.26
3/27/2010
3/28/2010
3/29/2010
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 0.38
4/10/2010
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 3.13
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
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
6/29/2010
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
9/28/2010
9/29/2010
9/30/2010



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 7:00 AM 0.00 0.0 M M M
10/3/2009 7:00 AM T M 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 5:55 AM 0.03 M M M M
10/8/2009 7:00 AM 0.00 0.0 M M M
10/9/2009 7:00 AM 0.03 M M M M
10/10/2009 7:00 AM 0.19 M M M M
10/11/2009 7:00 AM T M M M M
10/12/2009 7:00 AM 0.00 0.0 M M M
10/13/2009 6:00 AM 0.00 0.0 M M M
10/14/2009 6:00 AM 0.00 0.0 M M M
10/15/2009 5:55 AM T M M M M Light drizzle just starting...
10/16/2009 5:40 AM 1.02 M M M M Raining at the time of reading.
10/17/2009 7:55 AM 0.99 M M M M Raining at the time o reading
10/18/2009 7:00 AM 0.94 M M M M Raining at the time of reading
10/19/2009 7:00 AM 0.12 M M M M
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 8:45 AM 0.67 M M M M
10/25/2009 7:00 AM 1.02 M M M M
10/26/2009 7:00 AM 0.00 0.0 M M M
10/27/2009 5:50 AM 0.14 M M M M
10/28/2009 5:50 AM 0.91 M M M M drizzling at time of reading
10/29/2009 5:45 AM 0.19 M M M M
10/30/2009 7:00 AM 0.00 0.0 M M M
10/31/2009 7:00 AM 0.01 M M M M
11/1/2009 7:00 AM 0.12 M M M M
11/2/2009 7:00 AM 0.00 0.0 M M M
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
11/5/2009 5:45 AM 0.00 0.0 M M M
11/6/2009 6:00 AM 0.06 M M M M
11/7/2009 7:00 AM 0.00 0.0 M M M
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 0.01 M M M M
11/12/2009 7:00 AM 0.00 0.0 M M M
11/13/2009 7:00 AM 0.00 0.0 M M M
11/14/2009 9:00 AM 0.06 M M M M
11/15/2009 7:00 AM 0.00 0.0 M M M
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 5:50 AM 0.08 M M M M It was still raining at the time I took the measurement.
11/20/2009 5:45 AM 0.80 M M M M
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 7:40 AM 0.16 M M M M
11/25/2009 7:05 AM 0.42 M M M M Light drizzle at time of reading.
11/26/2009 9:30 AM 0.10 M M M M
11/27/2009 7:00 AM 0.07 M M M M
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 5:45 AM 0.00 0.0 M M M Heavy dew on my vehicle and the street, but the gauge was dry.
12/1/2009 5:40 AM 0.08 M M M M
12/2/2009 5:50 AM 0.00 0.0 M M M
12/3/2009 6:00 AM 1.02 M M M M Clear sky at time of reading, even had a meteor sighting!
12/4/2009 7:00 AM 0.00 0.0 M M M
12/5/2009 7:00 AM 0.00 0.0 M M M
12/6/2009 7:00 AM 0.21 0.4 0.21 M 0.21 O.4 inches of snow was the measurement on 12-05 in the late afternoon (after the snow ended.)
12/7/2009 7:00 AM 0.00 0.0 M M M
12/8/2009 7:00 AM 0.00 0.0 M M M
12/9/2009 5:25 AM 0.89 1.3 0.89 1.5 0.89 Raining at time of reading... 1.3 inches of slushy snow.
12/10/2009 6:00 AM 0.38 M M M M Clear sky at time of reading
12/11/2009 7:00 AM 0.00 0.0 M M M
12/12/2009 7:00 AM 0.00 0.0 M M M
12/13/2009 7:00 AM 0.00 0.0 M M M
12/14/2009 7:00 AM 0.57 M M M M Freezing drizzle turned to freezing rain, and eventually just rain. Sidewalks and driveway were very icy early on Sunday.
12/15/2009 6:00 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 6:00 AM 0.00 0.0 M M M
12/19/2009 7:00 AM 0.08 0.9 0.08 0.9 0.08 Snow was falling at the time of the readings (between 6:57 to 7:05 a.m. - reported as 7:00 a.m.) I measured the depth of snow in two locations. These measurements were 0.8 and 1.0 for an average of 0.9 inches of snow. I melted the snow in the gauge and also took a core sample. Both had melted values of 0.08 inches.
12/20/2009 7:00 AM 0.79 7.1 0.79 7.0 0.79 The melted snow in the gauge was 0.57 inch. However, the melted value from a core sample was 0.79 inch.
12/21/2009 7:00 AM 0.00 0.0 0.00 5.5 0.73
12/22/2009 7:00 AM 0.00 0.0 M M M
12/23/2009 7:00 AM 0.00 0.0 M M M
12/24/2009 7:00 AM 0.00 0.0 M M M
12/25/2009 7:00 AM 0.00 0.0 M M M
12/26/2009 8:50 AM 0.43 M M M M Most of the snow is now melted, except in the snow banks.
12/27/2009 7:00 AM 0.55 0.0 M 0.0 M A thin ice layer on top of water in gauge. Frost on the grass.
12/28/2009 7:00 AM 0.00 0.0 M M 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 8:00 AM 0.24 2.4 0.24 2.5 0.24 There was 2.4 inches of snow on the snow board. This was the same in several locations. The melted value from the gauge was 0.25 inches. The melted value from the snow board was 0.24.
1/1/2010 7:00 AM 0.15 M M 2.0 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 T T M M M A few snow flakes fell on Sunday afternoon.
1/5/2010 7:00 AM 0.00 0.0 M M M
1/6/2010 5:55 AM T 0.0 T M M A very light dusting this morning.
1/7/2010 5:50 AM T 0.0 T M M The light dusting of snow was still in progress when I took my reading Wednesday morning, so I am reporting a trace. No accumulation, and nothing in the gauge when checked in the afternoon.
1/8/2010 5:45 AM 0.03 1.3 M M M No snow falling at the time of the reading. I did not have time to take a core sample, but the melted value from the gauge was 0.03. Three snow depths were 1-1/4, 1-1/4, 1nd 1-3/8. Therefore, I reported 1.3 inches. Snow was light and powdery.
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 7:00 AM 0.85 M M M M
1/19/2010 7:00 AM 0.00 0.0 M M M
1/20/2010 5:45 AM T M M M M
1/21/2010 7:00 AM 0.00 0.0 M M M
1/22/2010 7:00 AM 0.00 0.0 M M M
1/23/2010 7:00 AM 0.00 0.0 M M M
1/24/2010 7:00 AM 0.00 0.0 M M M
1/25/2010 5:45 AM 0.83 M M M M
1/26/2010 5:45 AM 0.48 M M M M
1/27/2010 5:45 AM 0.00 0.0 M M M
1/28/2010 5:45 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 0.00 0.0 M M M
2/1/2010 7:00 AM 0.00 0.0 M M M
2/2/2010 7:00 AM 0.00 0.0 M M M
2/3/2010 6:30 AM 0.24 3.0 0.24 3.0 0.24 I melted the snow in the gauge, and also took a core sample. Both yielded a melted value of 0.24. I took a measurement at three locations. All three measurements were 3.0 inches.
2/6/2010 7:00 AM M 18.5 M 18.5 M The snow was overflowing the gauge, and was to deep for a core sample. The snow was very drifted. I took four separate measurements away from the house, and got 10", 14" 24" and 26", for an average depth of 18.5 inches. It was still snowing when I took these measurements at 7 am.
2/7/2010 7:00 AM M 4.0 M M M No melted values to report. At the time of yesterday's report it was still snowing, and continued into the afternoon. I tood several measurements along the places I cleared to take yesterday's reading. It varied from 3 to 5 inches, average of 4 inches. This may have been affected by drifting snow.
2/8/2010 6:00 AM 0.00 0.0 M M M
2/9/2010 7:00 AM 0.00 0.0 M M M
2/10/2010 7:00 AM M 6.3 M M M Several measurements produced an average of 6.3 inches of new snow at 7:00 am.
2/11/2010 7:00 AM M 18.0 M M M I measured an additional 6 inches (in addition to the 6.3 inches reported for 2-9-07 at 7 am) of snow at approximately 12 noon. At approximately 4 pm (after the "blizzard" snows stopped) I measured about 12 more inches of snow, but due to the blustery conditions and high winds, there is plenty of drift. This additional 12 inches may be due to drift.
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 M 0.7 M M M
2/17/2010 7:00 AM 0.00 0.0 M M M
2/18/2010 7:00 AM M 0.1 M M M
2/19/2010 7:00 AM T M 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 M M M M M See multi-day report
2/24/2010 5:45 AM M M M M M See multi-day report
2/25/2010 8:50 AM 0.02 M M M M
3/23/2010 5:50 AM 0.72 M M M M
3/26/2010 5:30 AM 0.26 M M M M Light rain at 5:30 am when I took the reading.
4/9/2010 5:15 AM 0.38 M M M M
5/3/2010 11:00 AM 3.13 M M M M 3.13 inches of rain from 5-2-10 until 11:00 am on 5-3-10.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
2/23/2010 2/24/2010 5:45 AM 2 0.25 M M Snow and/or rain mix



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