Viewing Station: IL-RC-7 : Dundas 1.4 E
Jan 1, 2019 - Sep 22, 20262,674 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.71"
September 1-23, 2026(22 of 23 days covered by obs)
NOAA Normal
2.54"
Departure from Normal
-0.83" : 67% of Normal
Year-To-Date: 34.45"
Jan 1 to Sep 23, 2026(264 of 266 days covered by obs)
NOAA Normal
34.03"
Departure from Normal
0.42" : 101% of Normal
Water Year-To-Date: 41.50"
Oct 1, 2025 to Sep 23, 2026(355 of 358 days covered by obs)
NOAA Normal
44.51"
Departure from Normal
-3.01" : 93% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.14
3.24
-0.10
Feb
2.48
2.54
-0.06
Mar
3.60
3.74
-0.14
Apr
4.79
4.87
-0.08
May
4.88
4.95
-0.07
Jun
4.90
4.94
-0.04
Jul
4.44
4.48
-0.04
Aug
3.26
3.09
0.17
Sep
3.31
3.33
-0.02
Oct
3.67
3.65
0.02
Nov
3.81
3.86
-0.05
Dec
3.00
3.18
-0.18
45.28
45.87
-0.59