Viewing Station: PA-MT-51 : Harleysville 2.9 S
Apr 19, 2010 - Sep 20, 20265,815 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.61"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
3.05"
Departure from Normal
-0.44" : 85% of Normal
Year-To-Date: 30.68"
Jan 1 to Sep 20, 2026(262 of 263 days covered by obs)
NOAA Normal
34.27"
Departure from Normal
-3.59" : 90% of Normal
Water Year-To-Date: 39.37"
Oct 1, 2025 to Sep 20, 2026(354 of 355 days covered by obs)
NOAA Normal
45.79"
Departure from Normal
-6.42" : 86% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.29
3.36
-0.07
Feb
2.74
2.76
-0.02
Mar
3.98
3.94
0.04
Apr
3.77
3.70
0.07
May
3.93
3.89
0.04
Jun
4.29
4.11
0.18
Jul
4.83
4.69
0.14
Aug
4.39
4.55
-0.16
Sep
4.58
4.59
-0.01
Oct
4.13
4.21
-0.08
Nov
3.21
3.23
-0.02
Dec
4.18
4.22
-0.04
47.32
47.25
0.07