Viewing Station: IL-TZ-49 : Washington 2.3 W
Jul 23, 2025 - Sep 21, 2026425 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.64"
September 1-22, 2026(21 of 22 days covered by obs)
NOAA Normal
2.45"
Departure from Normal
0.19" : 108% of Normal
Year-To-Date: 34.25"
Jan 1 to Sep 22, 2026(264 of 265 days covered by obs)
NOAA Normal
29.20"
Departure from Normal
5.05" : 117% of Normal
Water Year-To-Date: 39.67"
Oct 1, 2025 to Sep 22, 2026(356 of 357 days covered by obs)
NOAA Normal
37.12"
Departure from Normal
2.55" : 107% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.07
2.12
-0.05
Feb
1.89
1.94
-0.05
Mar
2.53
2.54
-0.01
Apr
3.83
3.77
0.06
May
4.59
4.72
-0.13
Jun
4.12
4.13
-0.01
Jul
4.08
3.67
0.41
Aug
3.64
3.34
0.30
Sep
3.34
3.44
-0.10
Oct
3.09
3.08
0.01
Nov
2.68
2.68
0.00
Dec
2.15
2.17
-0.02
38.01
37.60
0.41