Viewing Station: PA-MT-102 : Lansdale 3.9 SW
May 1, 2017 - Sep 20, 20262,879 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.39"
September 1-20, 2026(8 of 20 days covered by obs)
NOAA Normal
2.99"
Departure from Normal
-1.60" : 46% of Normal
Year-To-Date: 24.58"
Jan 1 to Sep 20, 2026(109 of 263 days covered by obs)
NOAA Normal
34.81"
Departure from Normal
-10.23" : 71% of Normal
Water Year-To-Date: 33.41"
Oct 1, 2025 to Sep 20, 2026(190 of 355 days covered by obs)
NOAA Normal
46.57"
Departure from Normal
-13.16" : 72% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.41
3.40
0.01
Feb
2.73
2.81
-0.08
Mar
4.10
4.06
0.04
Apr
3.82
3.71
0.11
May
4.01
3.92
0.09
Jun
4.36
4.17
0.19
Jul
4.77
4.71
0.06
Aug
4.62
4.65
-0.03
Sep
4.49
4.55
-0.06
Oct
4.17
4.22
-0.05
Nov
3.28
3.27
0.01
Dec
4.31
4.31
0.00
48.07
47.78
0.29