Station Overview Station Location
Station Number PA-MT-42 Latitude 40.288652
Station Name Chalfont 0.2 NW Longitude -75.21001
County Montgomery Elevation (ft) 290



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 4.14 9.56 33 0.00 0 9.56 33 2 0 0 0.0 0 0
Nov 10 3.63 2.48 33 0.00 0 2.48 33 3 0 0 0.0 0 0
Dec 10 3.94 3.97 32 0.00 12 3.97 20 2 0 0 0.0 0 0
Jan 11 3.29 5.65 42 0.00 12 5.65 30 6 0 0 0.0 0 0
Feb 11 2.66 2.68 30 0.27 14 2.41 16 2 1 0 0.0 0 0
March 11 3.76 8.30 37 0.00 11 8.30 26 6 0 0 0.0 0 0
April 11 3.95 7.18 37 0.00 3 7.18 34 8 0 0 0.0 0 0
May 11 4.32 5.12 34 0.02 9 5.10 25 4 1 0 0.0 0 0
June 11 4.26 3.10 32 0.70 16 2.40 16 2 3 0 0.0 0 0
July 11 4.94 5.99 33 5.08 20 0.91 13 3 1 0 0.0 0 0
Aug 11 4.07 16.02 38 1.12 4 14.90 34 6 1 0 0.0 0 0
Sept 11 4.46 16.04 34 0.00 6 16.04 28 5 0 0 0.0 0 0
Water Year Totals: 47.42" 86.09" 415 days 7.19" 107 78.90" 308 days 49 7 days 0 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 3.52
12/16/2010 0.00
12/17/2010 0.00
12/18/2010 0.00
12/19/2010 0.00
12/20/2010 0.00
12/21/2010 0.00
12/22/2010 0.00
12/23/2010 0.00
12/24/2010 0.00 **
12/25/2010 **
12/26/2010 **
12/27/2010 **
12/28/2010 0.45
12/29/2010 0.00
12/30/2010 0.00
12/31/2010 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.00
1/2/2011 0.00
1/3/2011 0.00
1/4/2011 0.00 **
1/5/2011 **
1/6/2011 **
1/7/2011 **
1/8/2011 **
1/9/2011 **
1/10/2011 0.13
1/11/2011 **
1/12/2011 0.39
1/13/2011 0.00
1/14/2011 0.00
1/15/2011 0.00
1/16/2011 0.00
1/17/2011 0.00 **
1/18/2011 **
1/19/2011 **
1/20/2011 **
1/21/2011 **
1/22/2011 0.00 **
1/23/2011 0.00 **
1/24/2011 0.00 **
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 0.27 **
2/4/2011 **
2/5/2011 **
2/6/2011 **
2/7/2011 2.28
2/8/2011 0.00
2/9/2011 0.00
2/10/2011 0.00
2/11/2011 0.00
2/12/2011 0.00
2/13/2011 0.00
2/14/2011 0.00
2/15/2011 0.00
2/16/2011 0.00
2/17/2011 0.00
2/18/2011 0.00 **
2/19/2011 **
2/20/2011 **
2/21/2011 **
2/22/2011 0.13
2/23/2011 0.00
2/24/2011 0.00
2/25/2011 **
2/26/2011 **
2/27/2011 **
2/28/2011 **
3/1/2011 **
3/2/2011 **
3/3/2011 1.06
3/4/2011 0.00 **
3/5/2011 **
3/6/2011 **
3/7/2011 2.75
3/8/2011 0.00
3/9/2011 0.00 **
3/10/2011 **
3/11/2011 2.78
3/12/2011 0.00
3/13/2011 0.00
3/14/2011 0.00
3/15/2011 0.00 **
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 0.45
3/26/2011 0.00
3/27/2011 0.00
3/28/2011 0.00
3/29/2011 0.00 **
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 0.65
4/12/2011 0.00 **
4/13/2011 **
4/14/2011 1.23
4/15/2011 0.00 **
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 1.94
4/26/2011 0.00
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 0.80
5/6/2011 0.00
5/7/2011 0.00
5/8/2011 0.02
5/9/2011 0.00
5/10/2011 0.00
5/11/2011 0.00
5/12/2011 0.00
5/13/2011 0.00 **
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 1.64
5/25/2011 0.00 **
5/26/2011 **
5/27/2011 **
5/28/2011 **
5/29/2011 **
5/30/2011 **
5/31/2011 0.12
6/1/2011 0.00 **
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 1.65
6/14/2011 0.04
6/15/2011 0.00
6/16/2011 0.02
6/17/2011 0.64
6/18/2011 0.00
6/19/2011 0.00
6/20/2011 0.00
6/21/2011 0.00
6/22/2011 0.00
6/23/2011 **
6/24/2011 0.75
6/25/2011 0.00
6/26/2011 0.00
6/27/2011 0.00
6/28/2011 0.00
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 0.66
7/6/2011 0.00 **
7/7/2011 **
7/8/2011 **
7/9/2011 **
7/10/2011 **
7/11/2011 0.20
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 0.00
7/26/2011 5.08 **
7/27/2011 0.05
7/28/2011 0.00
7/29/2011 0.00
7/30/2011 0.00
7/31/2011 0.00
8/1/2011 0.00 **
8/2/2011 1.12 **
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 8.84
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 **
9/6/2011 **
9/7/2011 **
9/8/2011 **
9/9/2011 **
9/10/2011 **
9/11/2011 **
9/12/2011 1.50
9/13/2011 0.00
9/14/2011 0.00
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
12/16/2010 7:00 AM 0.00 0.0 M M M
12/17/2010 7:00 AM 0.00 0.0 M M M
12/18/2010 7:00 AM 0.00 0.0 M M M
12/19/2010 7:00 AM 0.00 0.0 M M M
12/20/2010 7:00 AM 0.00 0.0 M M M
12/21/2010 7:00 AM 0.00 0.0 M M M
12/22/2010 7:00 AM 0.00 0.0 M M M
12/23/2010 7:00 AM 0.00 0.0 M M M
12/24/2010 7:00 AM 0.00 0.0 M M M
12/29/2010 7:00 AM 0.00 0.0 M M M
12/30/2010 7:00 AM 0.00 0.0 M M M
12/31/2010 7:00 AM 0.00 0.0 M M M
1/1/2011 7:00 AM 0.00 0.0 M M M
1/2/2011 7:00 AM 0.00 0.0 M M M
1/3/2011 7:00 AM 0.00 0.0 M M M
1/4/2011 7:00 AM 0.00 0.0 M M M
1/13/2011 7:00 AM 0.00 0.0 M M M
1/14/2011 7:00 AM 0.00 0.0 M M M
1/15/2011 7:00 AM 0.00 0.0 M M M
1/16/2011 7:00 AM 0.00 0.0 M M M
1/17/2011 7:00 AM 0.00 0.0 M M M
1/22/2011 7:00 AM 0.00 0.0 M M M
1/23/2011 7:00 AM 0.00 0.0 M M M
1/24/2011 7:00 AM 0.00 0.0 M M M
2/3/2011 10:00 AM 0.27 M M M M
2/8/2011 7:00 AM 0.00 0.0 M M M
2/9/2011 7:00 AM 0.00 0.0 M M M
2/10/2011 7:00 AM 0.00 0.0 M M M
2/11/2011 7:00 AM 0.00 0.0 M M M
2/12/2011 7:00 AM 0.00 0.0 M M M
2/13/2011 7:00 AM 0.00 0.0 M M M
2/14/2011 7:00 AM 0.00 0.0 M M M
2/15/2011 7:00 AM 0.00 0.0 M M M
2/16/2011 7:00 AM 0.00 0.0 M M M
2/17/2011 7:00 AM 0.00 0.0 M M M
2/18/2011 7:00 AM 0.00 0.0 M M M
2/23/2011 7:00 AM 0.00 0.0 M M M
2/24/2011 7:00 AM 0.00 0.0 M M M
3/4/2011 7:00 AM 0.00 0.0 M M M
3/8/2011 7:00 AM 0.00 0.0 M M M
3/9/2011 7:00 AM 0.00 0.0 M M M
3/12/2011 7:00 AM 0.00 0.0 M M M
3/13/2011 7:00 AM 0.00 0.0 M M M
3/14/2011 7:00 AM 0.00 0.0 M M M
3/15/2011 7:00 AM 0.00 0.0 M M M
3/26/2011 7:00 AM 0.00 0.0 M M M
3/27/2011 7:00 AM 0.00 0.0 M M M
3/28/2011 7:00 AM 0.00 0.0 M M M
3/29/2011 7:00 AM 0.00 0.0 M M M
4/12/2011 7:00 AM 0.00 0.0 M M M
4/15/2011 7:00 AM 0.00 0.0 M M M
4/26/2011 7:00 AM 0.00 0.0 M M M
5/6/2011 7:00 AM 0.00 0.0 M M M
5/7/2011 7:00 AM 0.00 0.0 M M M
5/8/2011 10:00 AM 0.02 M M M M
5/9/2011 7:00 AM 0.00 0.0 M M M
5/10/2011 7:00 AM 0.00 0.0 M M M
5/11/2011 7:00 AM 0.00 0.0 M M M
5/12/2011 7:00 AM 0.00 0.0 M M M
5/13/2011 7:00 AM 0.00 0.0 M M M
5/25/2011 7:00 AM 0.00 0.0 M M M
6/1/2011 7:00 AM 0.00 0.0 M M M
6/14/2011 10:15 AM 0.04 M M M M
6/15/2011 7:00 AM 0.00 0.0 M M M
6/16/2011 10:15 AM 0.02 M M M M
6/17/2011 10:15 AM 0.64 M M M M
6/18/2011 7:00 AM 0.00 0.0 M M M
6/19/2011 7:00 AM 0.00 0.0 M M M
6/20/2011 7:00 AM 0.00 0.0 M M M
6/21/2011 7:00 AM 0.00 0.0 M M M
6/22/2011 7:00 AM 0.00 0.0 M M M
6/25/2011 7:00 AM 0.00 0.0 M M M
6/26/2011 7:00 AM 0.00 0.0 M M M
6/27/2011 7:00 AM 0.00 0.0 M M M
6/28/2011 7:00 AM 0.00 0.0 M M M
6/29/2011 7:00 AM 0.00 0.0 M M M
6/30/2011 7:00 AM 0.00 0.0 M M M
7/6/2011 7:00 AM 0.00 0.0 M M M
7/12/2011 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
7/25/2011 7:00 AM 0.00 0.0 M M M
7/26/2011 10:15 AM 5.08 M M M M
7/28/2011 7:00 AM 0.00 0.0 M M M
7/29/2011 7:00 AM 0.00 0.0 M M M
7/30/2011 7:00 AM 0.00 0.0 M M M
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 10:15 AM 1.12 M M M M
8/30/2011 9:00 AM 0.00 0.0 M M M
8/31/2011 9:00 AM 0.00 0.0 M M M
9/1/2011 9:00 AM 0.00 0.0 M M M
9/2/2011 9:00 AM 0.00 0.0 M M M
9/3/2011 9:00 AM 0.00 0.0 M M M
9/4/2011 9:00 AM 0.00 0.0 M M M
9/13/2011 9:00 AM 0.00 0.0 M M M
9/14/2011 9:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/23/2010 10/01/2010 10:00 PM 9 7.30 M M
10/1/2010 10/22/2010 10:00 AM 22 2.26 M M
10/22/2010 11/03/2010 10:00 AM 13 0.32 M M
11/3/2010 11/09/2010 10:00 AM 7 1.80 M M
11/9/2010 11/24/2010 10:00 AM 16 0.36 M M
11/24/2010 12/15/2010 10:00 AM 22 3.52 M M
12/24/2010 12/28/2010 10:00 PM 5 0.45 M M
1/4/2011 1/10/2011 10:00 AM 7 0.13 M M
1/11/2011 1/12/2011 10:00 AM 2 0.39 M M
1/17/2011 1/19/2011 10:00 AM 3 1.83 M M
1/18/2011 1/19/2011 10:00 AM 2 1.83 M M
1/19/2011 1/24/2011 10:00 AM 6 0.27 M M
1/24/2011 1/28/2011 10:00 AM 5 1.20 M M
1/27/2011 2/07/2011 10:00 AM 12 2.28 M M
2/18/2011 2/22/2011 10:00 AM 5 0.13 M M
2/25/2011 3/03/2011 10:00 AM 7 1.06 M M
3/4/2011 3/07/2011 10:00 AM 4 2.75 M M
3/9/2011 3/11/2011 10:00 AM 3 2.78 M M
3/15/2011 3/17/2011 10:00 AM 3 0.82 M M
3/17/2011 3/22/2011 10:00 AM 6 0.44 M M
3/22/2011 3/25/2011 10:00 AM 4 0.45 M M
3/29/2011 4/04/2011 10:00 AM 7 0.45 M M
4/4/2011 4/06/2011 10:00 AM 3 0.25 M M
4/6/2011 4/11/2011 10:00 AM 6 0.65 M M
4/12/2011 4/14/2011 10:00 AM 3 1.23 M M
4/15/2011 4/18/2011 10:00 AM 4 2.22 M M
4/18/2011 4/21/2011 10:00 AM 4 0.10 M M
4/21/2011 4/25/2011 10:00 AM 5 1.94 M M
4/27/2011 4/29/2011 10:00 AM 3 0.34 M M
4/29/2011 5/05/2011 10:00 AM 7 0.80 M M
5/13/2011 5/19/2011 10:15 AM 7 2.54 M M
5/19/2011 5/24/2011 10:15 AM 6 1.64 M M
5/25/2011 5/31/2011 10:15 AM 7 0.12 M M
6/1/2011 6/13/2011 10:15 AM 13 1.65 M M
6/23/2011 6/24/2011 10:15 AM 2 0.75 M M (edit: start date changed from cc start to 6/23/2011. P.G.)
6/30/2011 7/05/2011 10:15 AM 6 0.66 M M
7/6/2011 7/11/2011 10:15 AM 6 0.20 M M
7/26/2011 7/27/2011 10:15 AM 2 0.05 M M
8/1/2011 8/02/2011 10:15 AM 2 1.12 M M
8/2/2011 8/12/2011 10:15 AM 11 1.50 M M
8/12/2011 8/18/2011 10:15 AM 7 2.60 M M
8/18/2011 8/23/2011 10:15 AM 6 0.15 M M
8/23/2011 8/26/2011 10:15 AM 4 0.69 M M
8/26/2011 8/29/2011 10:15 AM 4 8.84 M M
9/5/2011 9/08/2011 10:15 AM 4 9.70 M M
9/8/2011 9/12/2011 10:15 PM 5 1.50 M M
9/15/2011 9/22/2011 10:15 AM 8 0.42 M M
9/22/2011 9/27/2011 10:15 AM 6 1.75 M M
9/27/2011 9/30/2011 10:15 AM 4 2.67 M M
9/30/2011 10/03/2011 10:15 AM 4 0.44 M M



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