Viewing Station: IL-KD-99 : Montgomery 3.5 WSW
Jul 2, 2019 - Sep 19, 20262,008 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.11"
September 1-19, 2026(19 of 19 days covered by obs)
NOAA Normal
2.06"
Departure from Normal
1.05" : 151% of Normal
Year-To-Date: 34.85"
Jan 1 to Sep 19, 2026(185 of 262 days covered by obs)
NOAA Normal
28.47"
Departure from Normal
6.38" : 122% of Normal
Water Year-To-Date: 38.60"
Oct 1, 2025 to Sep 19, 2026(265 of 354 days covered by obs)
NOAA Normal
36.32"
Departure from Normal
2.28" : 106% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.85
1.90
-0.05
Feb
1.71
1.82
-0.11
Mar
2.22
2.29
-0.07
Apr
3.74
3.77
-0.03
May
4.63
4.57
0.06
Jun
4.42
4.34
0.08
Jul
3.90
3.83
0.07
Aug
3.94
3.76
0.18
Sep
3.25
3.26
-0.01
Oct
3.28
3.30
-0.02
Nov
2.53
2.49
0.04
Dec
2.04
2.08
-0.04
37.51
37.41
0.10