Viewing Station: IL-WN-40 : Rockford 4.5 WSW
Dec 2, 2018 - Aug 13, 20262,754 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.01"
August 1-13, 2026(13 of 13 days covered by obs)
NOAA Normal
1.62"
Departure from Normal
0.39" : 124% of Normal
Year-To-Date: 24.42"
Jan 1 to Aug 13, 2026(225 of 225 days covered by obs)
NOAA Normal
24.06"
Departure from Normal
0.36" : 102% of Normal
Water Year-To-Date: 29.53"
Oct 1, 2025 to Aug 13, 2026(317 of 317 days covered by obs)
NOAA Normal
31.09"
Departure from Normal
-1.56" : 95% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.60
1.60
0.00
Feb
1.64
1.65
-0.01
Mar
2.25
2.17
0.08
Apr
3.74
3.60
0.14
May
4.21
4.27
-0.06
Jun
5.15
5.28
-0.13
Jul
3.85
3.73
0.12
Aug
3.86
4.02
-0.16
Sep
3.61
3.51
0.10
Oct
2.79
2.80
-0.01
Nov
2.31
2.24
0.07
Dec
1.93
1.96
-0.03
36.94
36.83
0.11