Viewing Station: IL-MO-7 : Columbia 4.7 S
Nov 12, 2018 - May 27, 20262,278 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.84"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
4.33"
Departure from Normal
0.51" : 112% of Normal
Year-To-Date: 18.18"
Jan 1 to May 27, 2026(147 of 147 days covered by obs)
NOAA Normal
17.41"
Departure from Normal
0.77" : 104% of Normal
Water Year-To-Date: 25.19"
Oct 1, 2025 to May 27, 2026(239 of 239 days covered by obs)
NOAA Normal
26.67"
Departure from Normal
-1.48" : 94% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.54
2.69
-0.15
Feb
2.26
2.40
-0.14
Mar
3.49
3.55
-0.06
Apr
4.79
4.88
-0.09
May
4.97
4.98
-0.01
Jun
4.25
4.43
-0.18
Jul
3.85
3.88
-0.03
Aug
3.33
3.35
-0.02
Sep
3.38
3.26
0.12
Oct
3.11
3.10
0.01
Nov
3.40
3.49
-0.09
Dec
2.75
2.75
0.00
42.12
42.76
-0.64