Viewing Station: IL-LE-22 : Amboy 0.5 SSW
Jun 27, 2017 - May 18, 20262,842 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.56"
May 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
2.73"
Departure from Normal
-2.17" : 20% of Normal
Year-To-Date: 13.76"
Jan 1 to May 18, 2026(139 of 138 days covered by obs)
NOAA Normal
12.13"
Departure from Normal
1.63" : 113% of Normal
Water Year-To-Date: 19.62"
Oct 1, 2025 to May 18, 2026(231 of 230 days covered by obs)
NOAA Normal
19.36"
Departure from Normal
0.26" : 101% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.68
1.73
-0.05
Feb
1.75
1.73
0.02
Mar
2.43
2.34
0.09
Apr
3.54
3.52
0.02
May
4.71
4.64
0.07
Jun
5.14
4.97
0.17
Jul
4.06
4.11
-0.05
Aug
3.97
3.85
0.12
Sep
3.45
3.36
0.09
Oct
2.85
2.81
0.04
Nov
2.37
2.32
0.05
Dec
2.01
2.04
-0.03
37.96
37.42
0.54