Viewing Station: IL-LS-17 : Ottawa 1.6 N
May 15, 2007 - Jun 22, 20256,629 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.88"
June 1-23, 2025(22 of 23 days covered by obs)
NOAA Normal
3.35"
Departure from Normal
-0.47" : 86% of Normal
Year-To-Date: 13.89"
Jan 1 to Jun 23, 2025(173 of 174 days covered by obs)
NOAA Normal
17.26"
Departure from Normal
-3.37" : 80% of Normal
Water Year-To-Date: 19.88"
Oct 1, 2024 to Jun 23, 2025(265 of 266 days covered by obs)
NOAA Normal
24.74"
Departure from Normal
-4.86" : 80% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.92
1.91
0.01
Feb
1.75
1.80
-0.05
Mar
2.24
2.38
-0.14
Apr
3.53
3.53
0.00
May
4.47
4.56
-0.09
Jun
4.37
4.45
-0.08
Jul
3.77
3.79
-0.02
Aug
3.64
3.75
-0.11
Sep
3.21
3.30
-0.09
Oct
3.06
3.12
-0.06
Nov
2.46
2.61
-0.15
Dec
1.96
2.07
-0.11
36.38
37.27
-0.89