Viewing Station: IL-TZ-36 : Washington 2.0 NNW
Jan 2, 2022 - Sep 21, 20261,667 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.72"
September 1-22, 2026(21 of 22 days covered by obs)
NOAA Normal
2.46"
Departure from Normal
0.26" : 111% of Normal
Year-To-Date: 35.76"
Jan 1 to Sep 22, 2026(263 of 265 days covered by obs)
NOAA Normal
29.24"
Departure from Normal
6.52" : 122% of Normal
Water Year-To-Date: 41.91"
Oct 1, 2025 to Sep 22, 2026(355 of 357 days covered by obs)
NOAA Normal
37.16"
Departure from Normal
4.75" : 113% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.06
2.11
-0.05
Feb
1.88
1.93
-0.05
Mar
2.54
2.53
0.01
Apr
3.83
3.77
0.06
May
4.61
4.72
-0.11
Jun
4.12
4.12
0.00
Jul
4.09
3.66
0.43
Aug
3.65
3.37
0.28
Sep
3.35
3.44
-0.09
Oct
3.10
3.07
0.03
Nov
2.67
2.67
0.00
Dec
2.15
2.16
-0.01
38.05
37.55
0.50