Viewing Station: IL-JR-3 : Jerseyville 3.4 SW
Aug 14, 2019 - Sep 21, 20261,278 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.44"
September 1-23, 2026(21 of 23 days covered by obs)
NOAA Normal
2.51"
Departure from Normal
-2.07" : 17% of Normal
Year-To-Date: 24.65"
Jan 1 to Sep 23, 2026(196 of 266 days covered by obs)
NOAA Normal
31.16"
Departure from Normal
-6.51" : 79% of Normal
Water Year-To-Date: 27.95"
Oct 1, 2025 to Sep 23, 2026(253 of 358 days covered by obs)
NOAA Normal
39.98"
Departure from Normal
-12.03" : 70% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.33
2.43
-0.10
Feb
2.11
2.23
-0.12
Mar
3.07
3.14
-0.07
Apr
4.45
4.51
-0.06
May
4.92
5.03
-0.11
Jun
4.29
4.12
0.17
Jul
3.86
3.65
0.21
Aug
3.62
3.62
0.00
Sep
3.28
3.30
-0.02
Oct
3.19
3.16
0.03
Nov
3.21
3.41
-0.20
Dec
2.42
2.51
-0.09
40.75
41.11
-0.36