Viewing Station: IL-SP-28 : Freeport 4.3 W
Aug 26, 2021 - Sep 18, 20261,840 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.20"
September 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
2.26"
Departure from Normal
0.94" : 142% of Normal
Year-To-Date: 27.43"
Jan 1 to Sep 18, 2026(258 of 261 days covered by obs)
NOAA Normal
29.72"
Departure from Normal
-2.29" : 92% of Normal
Water Year-To-Date: 32.53"
Oct 1, 2025 to Sep 18, 2026(350 of 353 days covered by obs)
NOAA Normal
36.77"
Departure from Normal
-4.24" : 88% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.50
1.52
-0.02
Feb
1.63
1.63
0.00
Mar
2.35
2.13
0.22
Apr
3.69
3.63
0.06
May
4.32
4.38
-0.06
Jun
5.46
5.27
0.19
Jul
4.61
4.17
0.44
Aug
3.90
4.00
-0.10
Sep
3.76
3.90
-0.14
Oct
2.92
2.87
0.05
Nov
2.30
2.29
0.01
Dec
1.83
1.88
-0.05
38.27
37.67
0.60