Viewing Station: IL-LS-17 : Ottawa 1.6 N
May 15, 2007 - Apr 9, 20266,922 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 2.99"
April 1-9, 2026(9 of 9 days covered by obs)
NOAA Normal
1.06"
Departure from Normal
1.93" : 282% of Normal
Year-To-Date: 9.02"
Jan 1 to Apr 9, 2026(99 of 99 days covered by obs)
NOAA Normal
6.97"
Departure from Normal
2.05" : 129% of Normal
Water Year-To-Date: 15.68"
Oct 1, 2025 to Apr 9, 2026(191 of 191 days covered by obs)
NOAA Normal
14.45"
Departure from Normal
1.23" : 109% 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