Viewing Station: IL-EF-10 : Watson 0.3 NE
Aug 4, 2008 - Sep 15, 20266,384 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.35"
September 1-15, 2026(15 of 15 days covered by obs)
NOAA Normal
1.51"
Departure from Normal
-1.16" : 23% of Normal
Year-To-Date: 35.11"
Jan 1 to Sep 15, 2026(258 of 258 days covered by obs)
NOAA Normal
32.28"
Departure from Normal
2.83" : 109% of Normal
Water Year-To-Date: 42.22"
Oct 1, 2025 to Sep 15, 2026(350 of 350 days covered by obs)
NOAA Normal
42.24"
Departure from Normal
-0.02" : 100% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.94
2.96
-0.02
Feb
2.34
2.42
-0.08
Mar
3.39
3.30
0.09
Apr
4.95
4.74
0.21
May
4.88
4.89
-0.01
Jun
4.81
4.94
-0.13
Jul
4.17
4.16
0.01
Aug
3.29
3.07
0.22
Sep
3.02
3.06
-0.04
Oct
3.48
3.51
-0.03
Nov
3.74
3.70
0.04
Dec
2.74
2.79
-0.05
43.75
43.54
0.21