Viewing Station: IL-WN-48 : Rockford 3.8 NNW
Jun 13, 2020 - Sep 15, 20251,909 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.13"
September 1-15, 2025(13 of 15 days covered by obs)
NOAA Normal
1.78"
Departure from Normal
-1.65" : 7% of Normal
Year-To-Date: 23.83"
Jan 1 to Sep 15, 2025(256 of 258 days covered by obs)
NOAA Normal
27.93"
Departure from Normal
-4.10" : 85% of Normal
Water Year-To-Date: 28.10"
Oct 1, 2024 to Sep 15, 2025(347 of 350 days covered by obs)
NOAA Normal
34.94"
Departure from Normal
-6.84" : 80% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.57
1.60
-0.03
Feb
1.58
1.64
-0.06
Mar
2.17
2.15
0.02
Apr
3.68
3.61
0.07
May
4.25
4.27
-0.02
Jun
5.25
5.37
-0.12
Jul
3.74
3.66
0.08
Aug
3.92
4.05
-0.13
Sep
3.55
3.58
-0.03
Oct
2.82
2.81
0.01
Nov
2.29
2.29
0.00
Dec
1.90
1.99
-0.09
36.72
37.02
-0.30