Station Overview Station Location
Station Number PA-BT-3 Latitude 40.7891
Station Name Zelienople 0.2 SW Longitude -80.143
County Butler Elevation (ft) 939



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 2.62 3.18 31 1.71 26 1.47 5 3 8 2 0.0 0 0
Nov 10 3.30 3.65 30 3.47 28 0.18 2 1 9 3 0.0 0 0
Dec 10 2.93 4.63 31 4.61 28 0.02 3 1 20 6 17.9 23 28
Jan 11 2.66 2.30 31 2.30 31 0.00 0 0 16 11 23.8 18 25
Feb 11 2.26 1.52 13 0.38 9 1.14 4 2 4 1 3.3 4 9
March 11 2.89 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 11 3.33 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 11 4.00 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 11 4.05 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 11 3.97 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 11 3.41 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 11 3.47 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 38.89" 15.28" 136 days 12.47" 122 2.81" 14 days 7 57 days 23 days 45.0" 45 days 62 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 1.06
10/2/2010 0.00
10/3/2010 0.15
10/4/2010 0.18
10/5/2010 **
10/6/2010 0.24
10/7/2010 0.20
10/8/2010 0.00
10/9/2010 0.00
10/10/2010 0.00
10/11/2010 0.00
10/12/2010 0.15
10/13/2010 0.00
10/14/2010 0.00
10/15/2010 0.11
10/16/2010 0.06
10/17/2010 0.00
10/18/2010 0.00
10/19/2010 0.04
10/20/2010 0.00
10/21/2010 0.00
10/22/2010 T
10/23/2010 0.00
10/24/2010 0.00
10/25/2010 **
10/26/2010 0.17
10/27/2010 0.82
10/28/2010 0.00
10/29/2010 T
10/30/2010 0.00
10/31/2010 0.00
11/1/2010 0.00
11/2/2010 0.00
11/3/2010 0.00
11/4/2010 0.00
11/5/2010 0.15
11/6/2010 0.03
11/7/2010 T
11/8/2010 0.00
11/9/2010 0.00
11/10/2010 0.00
11/11/2010 0.00
11/12/2010 0.00
11/13/2010 0.00
11/14/2010 0.00
11/15/2010 0.11
11/16/2010 0.00
11/17/2010 0.38
11/18/2010 0.01
11/19/2010 0.02
11/20/2010 0.00
11/21/2010 0.00
11/22/2010 0.00
11/23/2010 **
11/24/2010 0.18
11/25/2010 0.68
11/26/2010 1.59
11/27/2010 T
11/28/2010 T
11/29/2010 0.00
11/30/2010 0.50
12/1/2010 3.52
12/2/2010 0.03
12/3/2010 0.02
12/4/2010 T
12/5/2010 0.02
12/6/2010 0.07
12/7/2010 0.04
12/8/2010 0.03
12/9/2010 0.03
12/10/2010 0.01
12/11/2010 0.04
12/12/2010 0.14
12/13/2010 0.39
12/14/2010 0.10
12/15/2010 0.06
12/16/2010 T
12/17/2010 T
12/18/2010 T
12/19/2010 0.00
12/20/2010 0.01
12/21/2010 0.02
12/22/2010 0.00
12/23/2010 0.03
12/24/2010 T
12/25/2010 0.02
12/26/2010 0.02
12/27/2010 0.01
12/28/2010 T
12/29/2010 **
12/30/2010 **
12/31/2010 0.02
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.17
1/2/2011 0.71
1/3/2011 0.00
1/4/2011 0.00
1/5/2011 T
1/6/2011 T
1/7/2011 0.09
1/8/2011 0.08
1/9/2011 T
1/10/2011 T
1/11/2011 T
1/12/2011 0.22
1/13/2011 0.13
1/14/2011 0.04
1/15/2011 T
1/16/2011 T
1/17/2011 0.00
1/18/2011 0.08
1/19/2011 0.18
1/20/2011 0.03
1/21/2011 0.31
1/22/2011 T
1/23/2011 T
1/24/2011 0.00
1/25/2011 0.03
1/26/2011 T
1/27/2011 0.02
1/28/2011 0.08
1/29/2011 0.05
1/30/2011 0.08
1/31/2011 T
2/1/2011 **
2/2/2011 1.00
2/3/2011 0.04
2/4/2011 0.00
2/5/2011 **
2/6/2011 0.14
2/7/2011 T
2/8/2011 0.29
2/9/2011 0.00
2/10/2011 0.00
2/11/2011 0.00
2/12/2011 0.03
2/13/2011 0.02
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
3/16/2011
3/17/2011
3/18/2011
3/19/2011
3/20/2011
3/21/2011
3/22/2011
3/23/2011
3/24/2011
3/25/2011
3/26/2011
3/27/2011
3/28/2011
3/29/2011
3/30/2011
3/31/2011
Day of YearDaily PrcpMultiday Prcp
4/1/2011
4/2/2011
4/3/2011
4/4/2011
4/5/2011
4/6/2011
4/7/2011
4/8/2011
4/9/2011
4/10/2011
4/11/2011
4/12/2011
4/13/2011
4/14/2011
4/15/2011
4/16/2011
4/17/2011
4/18/2011
4/19/2011
4/20/2011
4/21/2011
4/22/2011
4/23/2011
4/24/2011
4/25/2011
4/26/2011
4/27/2011
4/28/2011
4/29/2011
4/30/2011
5/1/2011
5/2/2011
5/3/2011
5/4/2011
5/5/2011
5/6/2011
5/7/2011
5/8/2011
5/9/2011
5/10/2011
5/11/2011
5/12/2011
5/13/2011
5/14/2011
5/15/2011
5/16/2011
5/17/2011
5/18/2011
5/19/2011
5/20/2011
5/21/2011
5/22/2011
5/23/2011
5/24/2011
5/25/2011
5/26/2011
5/27/2011
5/28/2011
5/29/2011
5/30/2011
5/31/2011
6/1/2011
6/2/2011
6/3/2011
6/4/2011
6/5/2011
6/6/2011
6/7/2011
6/8/2011
6/9/2011
6/10/2011
6/11/2011
6/12/2011
6/13/2011
6/14/2011
6/15/2011
6/16/2011
6/17/2011
6/18/2011
6/19/2011
6/20/2011
6/21/2011
6/22/2011
6/23/2011
6/24/2011
6/25/2011
6/26/2011
6/27/2011
6/28/2011
6/29/2011
6/30/2011
Day of YearDaily PrcpMultiday Prcp
7/1/2011
7/2/2011
7/3/2011
7/4/2011
7/5/2011
7/6/2011
7/7/2011
7/8/2011
7/9/2011
7/10/2011
7/11/2011
7/12/2011
7/13/2011
7/14/2011
7/15/2011
7/16/2011
7/17/2011
7/18/2011
7/19/2011
7/20/2011
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
7/30/2011
7/31/2011
8/1/2011
8/2/2011
8/3/2011
8/4/2011
8/5/2011
8/6/2011
8/7/2011
8/8/2011
8/9/2011
8/10/2011
8/11/2011
8/12/2011
8/13/2011
8/14/2011
8/15/2011
8/16/2011
8/17/2011
8/18/2011
8/19/2011
8/20/2011
8/21/2011
8/22/2011
8/23/2011
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
9/3/2011
9/4/2011
9/5/2011
9/6/2011
9/7/2011
9/8/2011
9/9/2011
9/10/2011
9/11/2011
9/12/2011
9/13/2011
9/14/2011
9/15/2011
9/16/2011
9/17/2011
9/18/2011
9/19/2011
9/20/2011
9/21/2011
9/22/2011
9/23/2011
9/24/2011
9/25/2011
9/26/2011
9/27/2011
9/28/2011
9/29/2011
9/30/2011



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2010 7:00 AM 0.00 0.0 M M M Yesterday's high: 66 F; this morning's low: 39 F.
10/3/2010 7:00 AM 0.15 M M M M Light drizzle at time of observation. Yesterday's high: 64 F; this morning's low: 48 F.
10/4/2010 7:00 AM 0.18 M M M M
10/7/2010 7:00 AM 0.20 M M M M Yesterday's high: 53 F; this morning's low: 44 F. Wow! Small patches of blue sky are visible which has been a rarity this week.
10/8/2010 7:00 AM 0.00 0.0 M M M Yesterday's high: 68 F; this morning's low: 36 F. Very light frost this morning.
10/9/2010 7:00 AM 0.00 0.0 M M M Yesterday's high: 75 F; this morning's low: 40 F.
10/10/2010 7:00 AM 0.00 0.0 M M M Yesterday's high: 77 F; this morning's low: 44 F.
10/11/2010 7:00 AM 0.00 0.0 M M M Yesterday's high: 84 F; this morning's low: 47 F.
10/12/2010 7:00 AM 0.15 M M M M A light thunderstorm moved through around 6:20 p.m. last evening.
10/13/2010 7:00 AM 0.00 0.0 M M M This morning's low and current temp: 34 F. Very light frost but not a killing frost.
10/14/2010 7:00 AM 0.00 0.0 M M M
10/15/2010 7:00 AM 0.11 M M M M This morning's low: 41 F. Light drizzle at observation time.
10/16/2010 7:00 AM 0.06 M M M M This morning's low: 37 F.
10/17/2010 7:00 AM 0.00 0.0 M M M This morning's low temp and current temp: 37 F. No frost so the growing season continues.
10/18/2010 7:00 AM 0.00 0.0 M M M This morning's low: 34 F with a light frost but still not a killing frost. Clouds moved in overnight which held the temperature up just enough.
10/19/2010 7:00 AM 0.04 M M M M Low temp: 43 F.
10/20/2010 7:00 AM 0.00 0.0 M M M Current temp. and low temp: 30 F with a killing frost which marks the end of the growing season. The last temp. below freezing in the Spring was on May 10, giving us a growing season of 163 days this year.
10/21/2010 7:00 AM 0.00 0.0 M M M
10/22/2010 7:00 AM T 0.0 M M M This morning's low temp: 32 F.
10/23/2010 7:00 AM 0.00 0.0 M M M This morning's low temp: 31 F.
10/24/2010 5:25 AM 0.00 0.0 M M M This morning's low temp: 41 F before rising to 43 F at observation.
10/27/2010 7:00 AM 0.82 M M M M Peak wind gust in yesterday afternoon's rain squall was 36 mph.
10/28/2010 7:00 AM 0.00 0.0 M M M
10/29/2010 7:00 AM T M M M M
10/30/2010 7:00 AM 0.00 0.0 M M M This morning's low: 27 F with heavy frost.
10/31/2010 7:00 AM 0.00 0.0 M M M
11/1/2010 7:00 AM 0.00 0.0 M M M This morning's low: 26 F, with heavy frost.
11/2/2010 7:00 AM 0.00 0.0 M M M This morning's low: 22 F with heavy frost.
11/3/2010 7:00 AM 0.00 0.0 M M M This morning's low: 22 F, with heavy frost.
11/4/2010 7:00 AM 0.00 0.0 M M M
11/5/2010 7:00 AM 0.15 M M M M Current temp: 39 F, with light rain.
11/6/2010 7:00 AM 0.03 T M 0.0 M Wet snow showers around 10 p.m. last evening. No accumulation. First snow of the year.
11/7/2010 7:00 AM T T M 0.0 M A few snow flurries yesterday morning. Yesterday's high: 42 F; this morning's low: 24 F.
11/8/2010 7:00 AM 0.00 0.0 M M M This morning's low: 23 F.
11/9/2010 7:00 AM 0.00 0.0 M M M This morning's low temp: 25 F.
11/10/2010 7:00 AM 0.00 0.0 M M M This morning's low: 27 F.
11/11/2010 7:00 AM 0.00 0.0 M M M This morning's low: 24 F.
11/12/2010 7:00 AM 0.00 0.0 M M M This morning's low: 25 F.
11/13/2010 7:00 AM 0.00 0.0 M M M This morning's low temp: 24 F.
11/14/2010 7:00 AM 0.00 0.0 M M M Yesterday's high temp: 68 F; this morning's low: 31 F.
11/15/2010 7:00 AM 0.11 M M M M
11/16/2010 7:00 AM 0.00 0.0 M M M
11/17/2010 7:00 AM 0.38 M M M M Peak wind gust overnight: 35 mph.
11/18/2010 7:00 AM 0.01 M M M M
11/19/2010 7:00 AM 0.02 M M M M
11/20/2010 7:00 AM 0.00 0.0 M M M
11/21/2010 7:00 AM 0.00 0.0 M M M This morning's low and current temp: 27 F.
11/22/2010 7:00 AM 0.00 0.0 M M M
11/25/2010 7:00 AM 0.68 T M 0.0 M Brief period of sleet at the onset of precipitation last evening around 11:15 p.m. Current temp. and overnight low temp: 37 F with a steady, moderate rain.
11/26/2010 7:00 AM 1.59 M M M M A much-needed soaking rain after a very dry Fall. This morning's low and current temp: 34 F.
11/27/2010 7:00 AM T T M 0.0 M
11/28/2010 7:00 AM T T M 0.0 M
11/29/2010 7:00 AM 0.00 0.0 M 0.0 M This morning's low: 20 F.
11/30/2010 7:00 AM 0.50 M M M M Exactly .50 inches of rain has fallen.
12/1/2010 7:00 AM 3.52 0.5 M 0.5 M Rain (changing to snow the past 3 hours) fell almost continuously for the past 24 hours. The storm total, which goes back about 29 hours is an impressive 4.02 inches, which makes this the largest rain event since Hurricane Ivan in 2004. Then, it ended as snow with the first measurable snow of the season. There is flooding in the area with the Connoquenessing slightly above its banks.
12/2/2010 7:00 AM 0.03 0.4 M 0.5 M
12/3/2010 5:45 AM 0.02 0.4 M 1.0 M
12/4/2010 7:00 AM T 0.1 M 0.5 M
12/5/2010 7:00 AM 0.02 0.4 M 1.0 M
12/6/2010 7:00 AM 0.07 2.1 M 2.0 M Lots of lake effect snow yesterday ending in the late afternoon hours. With temps in the low 20s, high water to snow ratios and blowing snow.
12/7/2010 7:00 AM 0.04 1.2 M 2.0 M The heavier lake effect bands were consistently north and east of Zelienople over the past 24 hours.
12/8/2010 7:00 AM 0.03 1.0 M 2.0 M A lake effect band of snow dropped a quick inch of snow between 4 and 5 p.m. yesterday.
12/9/2010 7:00 AM 0.03 1.0 M 2.5 M A band of lake effect snow beginning around 8:30 p.m. last evening gave us an inch of snow.
12/10/2010 7:00 AM 0.01 0.3 M 2.0 M Light snow has moved into the area this morning giving us a coating of new snow.
12/11/2010 7:00 AM 0.04 1.2 M 2.5 M Light snow over a 4-hour period yesterday morning. Clear skies the early part of overnight before clouds increased allowed this morning's low temp. to drop to 16 F.
12/12/2010 7:00 AM 0.14 T M 1.0 M Precip. began as a brief period of snow about 11:15 p.m. last night. Current temp: 37 F.
12/13/2010 7:00 AM 0.39 1.2 M 1.0 M Rain changed to snow about 3:30 p.m. yesterday.
12/14/2010 7:00 AM 0.10 3.0 M 3.0 M
12/15/2010 7:00 AM 0.06 2.4 M 4.0 M An intense band of lake effect snow dumped 1.5 inches of snow in just 30 minutes yesterday morning beginning at 9:35 a.m.
12/16/2010 7:00 AM T 0.3 M 4.0 M
12/17/2010 7:00 AM T 0.1 M 3.0 M
12/18/2010 7:00 AM T T M 2.5 M
12/19/2010 7:00 AM 0.00 0.0 M 2.5 M This morning's low: 4 F.
12/20/2010 7:00 AM 0.01 0.3 M 2.5 M
12/21/2010 7:00 AM 0.02 0.5 M 2.5 M
12/22/2010 7:00 AM 0.00 0.0 M 2.0 M
12/23/2010 7:00 AM 0.03 0.1 M 2.0 M A mixture of snow and freezing drizzle fell overnight with a light glaze of ice covering everything this morning. Current temp: 28 F; low temp: 27 F.
12/24/2010 7:00 AM T T M 2.0 M
12/25/2010 7:00 AM 0.02 0.4 M 2.0 M
12/26/2010 7:00 AM 0.02 0.4 M 2.0 M
12/27/2010 7:00 AM 0.01 0.3 M 2.0 M
12/28/2010 7:00 AM T 0.3 M 2.5 M Lots of snow shower activity yesterday didn't amount to whole lot. There has been blowing and drifting of snow across north-south roads, however.
1/1/2011 7:00 AM 0.17 0.0 M 0.0 M Yesterday's high temp: 60 F. Current temp: 51 F with a steady rain.
1/2/2011 7:00 AM 0.71 0.0 M 0.0 M About 7 hours of steady rain yesterday. Yesterday's high temp: 56 F; this morning's low: 27 F.
1/3/2011 7:00 AM 0.00 0.0 M M M This morning's low temp: 17 F.
1/4/2011 7:00 AM 0.00 0.0 M 0.0 M
1/5/2011 7:00 AM T T M 0.0 M
1/6/2011 7:00 AM T T M 0.0 M
1/7/2011 7:00 AM 0.09 2.0 M 2.0 M
1/8/2011 7:00 AM 0.08 2.0 M 3.5 M This morning's low temp: 15 F.
1/9/2011 7:00 AM T 0.3 M 3.0 M Currently, there is a lake effect band of snow moving through with visibility 3/4 mi. and the temp. is 13 F.
1/10/2011 7:00 AM T 0.2 M 2.5 M This morning's low and current temp: 6 F.
1/11/2011 7:00 AM T T M 2.0 M
1/12/2011 7:00 AM 0.22 4.0 M 6.0 M 2 inches of snow fell within a few hours late yesterday afternoon. Then, another 2 inches fell overnight. The overnight snow had a lower water content. This morning's low temp: 21 F.
1/13/2011 7:00 AM 0.13 3.5 M 8.0 M Off and on lake effect snow showers over the past 24 hours with low moisture content and lots of blowing snow.
1/14/2011 7:00 AM 0.04 1.1 M 7.5 M This morning's low: 16 F.
1/15/2011 7:00 AM T 0.3 M 6.0 M
1/16/2011 7:00 AM T T M 5.5 M
1/17/2011 7:00 AM 0.00 0.0 M 5.0 M This morning's low temp: 4 F.
1/18/2011 7:00 AM 0.08 0.1 M 4.5 M A mix of rain and sleet fell overnight with a covering of sleet and a tenth of an inch of ice over everything. Current temp: 32 F.
1/19/2011 7:00 AM 0.18 0.9 M 2.0 M Rain ended as a period of snow early this morning. Current temp: 32 F.
1/20/2011 7:00 AM 0.03 0.3 M 2.0 M A mixture of very light freezing rain and snow fell throughout the day yesterday ending as snow last evening. This morning's low: 21 F.
1/21/2011 7:00 AM 0.31 4.0 M 6.0 M
1/22/2011 7:00 AM T T M 5.0 M Due to snow cover and a clear, calm night, this morning's low temp. dropped to -9 F.
1/23/2011 7:00 AM T 0.1 M 5.0 M Very light snow flurries at time of observation. This morning's low: 11 F.
1/24/2011 7:00 AM 0.00 0.0 M 4.5 M This morning's low temp: -9 F around 4 am. Then, the clouds increased and temperatures started to rise to -2 F by 7 am.
1/25/2011 7:00 AM 0.03 0.4 M 4.5 M The temperature this morning is a balmy 32 F.
1/26/2011 7:00 AM T T M 4.0 M
1/27/2011 7:00 AM 0.02 0.3 M 4.0 M All snow came within the past hour in a moderate band of snow moving through. Yesterday's snowstorm completely missed us with literally only 2 or 3 flakes.
1/28/2011 7:00 AM 0.08 2.0 M 5.5 M
1/29/2011 7:00 AM 0.05 1.1 M 6.0 M
1/30/2011 7:00 AM 0.08 1.2 M 6.5 M
1/31/2011 7:00 AM T T M 6.0 M This morning's low: +1 F.
2/3/2011 7:00 AM 0.04 1.0 M 3.5 M Clear skies overnight allowed the temp. to drop to 12 F this morning.
2/4/2011 7:00 AM 0.00 0.0 M 2.5 M
2/7/2011 7:00 AM T T M 2.5 M
2/8/2011 7:00 AM 0.29 1.4 M 4.0 M
2/9/2011 7:00 AM 0.00 0.0 M 3.5 M This morning's low: 8 F.
2/10/2011 7:00 AM 0.00 0.0 M 3.0 M This morning's low temp: 6 F.
2/11/2011 7:00 AM 0.00 0.0 M 3.0 M This morning's low temp: 3 F.
2/12/2011 7:00 AM 0.03 0.5 M 2.5 M
2/13/2011 7:00 AM 0.02 0.4 M 2.0 M This is the last report from this site at Zelienople as I am moving to McMurray, PA, in Washington County. I hope to have a new site operating there within a few weeks.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/28/2010 10/01/2010 7:00 AM 4 1.06 M M Very much needed rain during two different periods this week.
10/5/2010 10/06/2010 7:00 AM 2 0.24 M M
10/25/2010 10/26/2010 7:00 AM 2 0.17 M M
11/23/2010 11/24/2010 7:00 AM 2 0.18 M M
12/29/2010 12/31/2010 7:00 AM 3 0.02 0.5 M Trace of new snowfall during the period.
2/1/2011 2/02/2011 7:00 AM 2 1.00 3.5 M This is an exact measurement of liquid precipitation over the past two days. This morning's temp: 39 F.
2/5/2011 2/06/2011 7:00 AM 2 0.14 2.5 M .3 inches of snow fell during this period.



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