Viewing Station: PA-CH-11 : Unionville 2.2 NE
Aug 17, 2009 - Sep 20, 20266,113 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 12.79"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
3.28"
Departure from Normal
9.51" : 390% of Normal
Year-To-Date: 33.83"
Jan 1 to Sep 20, 2026(204 of 263 days covered by obs)
NOAA Normal
34.59"
Departure from Normal
-0.76" : 98% of Normal
Water Year-To-Date: 41.11"
Oct 1, 2025 to Sep 20, 2026(288 of 355 days covered by obs)
NOAA Normal
46.36"
Departure from Normal
-5.25" : 89% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.47
3.56
-0.09
Feb
2.84
2.92
-0.08
Mar
4.30
4.33
-0.03
Apr
3.70
3.72
-0.02
May
3.79
3.92
-0.13
Jun
4.29
4.44
-0.15
Jul
4.61
4.57
0.04
Aug
4.31
4.56
-0.25
Sep
4.92
4.98
-0.06
Oct
4.26
4.45
-0.19
Nov
3.37
3.27
0.10
Dec
4.14
4.39
-0.25
48.00
49.11
-1.11