Station Overview Station Location
Station Number PA-MT-62 Latitude 40.125191
Station Name Willow Grove 1.7 S Longitude -75.113398
County Montgomery Elevation (ft) 293



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 3.72 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 10 3.65 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 10 3.95 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 11 3.45 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 11 2.71 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 11 4.01 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 11 3.98 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 11 4.26 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 11 4.19 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 11 5.10 3.57 30 3.57 30 0.00 0 0 7 1 0.0 0 0
Aug 11 4.32 16.79 29 16.79 29 0.00 0 0 15 0 0.0 0 0
Sept 11 4.36 0.43 6 0.43 6 0.00 0 0 1 0 0.0 0 0
Water Year Totals: 47.70" 20.79" 65 days 20.79" 65 0.00" 0 days 0 23 days 1 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
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 0.00
7/2/2011 0.00
7/3/2011 T
7/4/2011 0.03
7/5/2011 0.00
7/6/2011 0.00
7/7/2011 0.07
7/8/2011 0.00
7/9/2011 0.80
7/10/2011 0.00
7/11/2011 0.00
7/12/2011 0.00
7/13/2011 0.00
7/14/2011 0.00
7/15/2011 0.00
7/16/2011 0.00
7/17/2011 0.00
7/18/2011 0.00
7/19/2011 0.00
7/20/2011 0.00
7/21/2011 0.00
7/22/2011 0.00
7/23/2011 0.00
7/24/2011 0.00
7/25/2011
7/26/2011 1.92
7/27/2011 0.05
7/28/2011 0.00
7/29/2011 0.02
7/30/2011 0.68
7/31/2011 0.00
8/1/2011 0.00
8/2/2011 0.01
8/3/2011 0.00
8/4/2011 0.78
8/5/2011 0.00
8/6/2011 0.00
8/7/2011 0.27
8/8/2011 0.03
8/9/2011 0.00
8/10/2011 0.58
8/11/2011 0.00
8/12/2011 0.00
8/13/2011 0.00
8/14/2011 1.78
8/15/2011 1.55
8/16/2011 1.22
8/17/2011 0.04
8/18/2011
8/19/2011 0.22
8/20/2011 1.03
8/21/2011 0.00
8/22/2011 1.74
8/23/2011 0.00
8/24/2011 0.00
8/25/2011
8/26/2011 0.46
8/27/2011 0.20
8/28/2011 6.88
8/29/2011 0.00
8/30/2011 0.00
8/31/2011 0.00
9/1/2011 0.00
9/2/2011 0.00
9/3/2011 0.00
9/4/2011 0.00
9/5/2011 0.00
9/6/2011 0.43
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
7/1/2011 7:00 AM 0.00 0.0 M M M
7/2/2011 7:00 AM 0.00 0.0 M M M
7/3/2011 7:00 AM T M M M M Very light drizzle
7/4/2011 7:00 AM 0.03 M M M M
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 0.07 M M M M One heavy storm
7/8/2011 7:00 AM 0.00 0.0 M M M
7/9/2011 7:00 AM 0.80 M M M M Heaviest rain during early afternoon
7/10/2011 7:00 AM 0.00 0.0 M M M
7/11/2011 7:00 AM 0.00 0.0 M M M
7/12/2011 7:00 AM 0.00 0.0 M M M
7/13/2011 7:00 AM 0.00 0.0 M M M
7/14/2011 7:00 AM 0.00 0.0 M M M
7/15/2011 7:00 AM 0.00 0.0 M M M
7/16/2011 7:00 AM 0.00 0.0 M M M
7/17/2011 7:00 AM 0.00 0.0 M M M
7/18/2011 7:00 AM 0.00 0.0 M M M
7/19/2011 7:00 AM 0.00 0.0 M M M
7/20/2011 7:00 AM 0.00 0.0 M M M
7/21/2011 7:00 AM 0.00 0.0 M M M
7/22/2011 7:00 AM 0.00 0.0 M M M
7/23/2011 7:00 AM 0.00 0.0 M M M
7/24/2011 7:00 AM 0.00 0.0 M M M
7/26/2011 7:00 AM 1.92 M M M M Two waves of rain: #1 Start Around 2PM-4PM, #2 Start Around 7PM-9PM Wave #2 Heaviest
7/27/2011 7:00 AM 0.05 M M M M Light rain after 7PM-10PM
7/28/2011 7:00 AM 0.00 0.0 M M M
7/29/2011 7:00 AM 0.02 M M M M
7/30/2011 7:00 AM 0.68 M M M M Two batches of rain: #1- Heavy 6:51-7:05: 0.43 in #2- Moderate 7:50-8:10 0.25 in Gusty winds, low visibility with storm #1
7/31/2011 7:00 AM 0.00 0.0 M M M
8/1/2011 7:00 AM 0.00 0.0 M M M
8/2/2011 7:00 AM 0.01 M M M M
8/3/2011 7:00 AM 0.00 0.0 M M M
8/4/2011 7:00 AM 0.78 M M M M
8/5/2011 7:00 AM 0.00 0.0 M M M
8/6/2011 7:00 AM 0.00 0.0 M M M
8/7/2011 7:00 AM 0.27 M M M M
8/8/2011 7:00 AM 0.03 M M M M
8/9/2011 7:00 AM 0.00 0.0 M M M
8/10/2011 7:00 AM 0.58 M M M M Moderate Rainfall around midday; light rainfall after 5PM
8/11/2011 7:00 AM 0.00 0.0 M M M
8/12/2011 7:00 AM 0.00 0.0 M M M
8/13/2011 7:00 AM 0.00 0.0 M M M
8/14/2011 10:00 AM 1.78 M M M M
8/15/2011 7:00 AM 1.55 M M M M
8/16/2011 7:00 AM 1.22 M M M M
8/17/2011 7:00 AM 0.04 M M M M
8/19/2011 7:00 AM 0.22 M M M M
8/20/2011 7:00 AM 1.03 M M M M Heavy rain
8/21/2011 7:00 AM 0.00 0.0 M M M
8/22/2011 7:00 AM 1.74 M M M M Series of heavy storms
8/23/2011 7:00 AM 0.00 0.0 M M M
8/24/2011 7:00 AM 0.00 0.0 M M M
8/26/2011 7:00 AM 0.46 M M M M
8/27/2011 7:00 AM 0.20 M M M M
8/28/2011 5:00 PM 6.88 M M M M Hurricane Irene
8/29/2011 7:00 AM 0.00 0.0 M M M (Amount due to late report on previous day).
8/30/2011 7:00 AM 0.00 0.0 M M M
8/31/2011 7:00 AM 0.00 0.0 M M M
9/1/2011 7:00 AM 0.00 0.0 M M M
9/2/2011 7:00 AM 0.00 0.0 M M M
9/3/2011 7:00 AM 0.00 0.0 M M M
9/4/2011 7:00 AM 0.00 0.0 M M M
9/5/2011 7:00 AM 0.00 0.0 M M M
9/6/2011 7:00 AM 0.43 M M M M



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