Viewing Station: IL-SL-1 : Harrisburg 4.6 NNE
Mar 1, 2009 - May 27, 20264,561 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.29"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
4.19"
Departure from Normal
-0.90" : 79% of Normal
Year-To-Date: 13.82"
Jan 1 to May 27, 2026(147 of 147 days covered by obs)
NOAA Normal
20.55"
Departure from Normal
-6.73" : 67% of Normal
Water Year-To-Date: 21.72"
Oct 1, 2025 to May 27, 2026(239 of 239 days covered by obs)
NOAA Normal
31.74"
Departure from Normal
-10.02" : 68% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.45
3.42
0.03
Feb
3.21
3.22
-0.01
Mar
4.53
4.31
0.22
Apr
5.17
5.13
0.04
May
4.81
4.80
0.01
Jun
4.51
4.66
-0.15
Jul
3.90
3.80
0.10
Aug
3.28
2.97
0.31
Sep
3.37
3.21
0.16
Oct
3.57
3.49
0.08
Nov
4.02
4.14
-0.12
Dec
3.60
3.73
-0.13
47.42
46.88
0.54