Viewing Station: IL-PT-6 : Monticello 6.5 WSW
May 8, 2008 - May 27, 20266,464 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 2.05"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
3.94"
Departure from Normal
-1.89" : 52% of Normal
Year-To-Date: 16.15"
Jan 1 to May 27, 2026(146 of 147 days covered by obs)
NOAA Normal
14.63"
Departure from Normal
1.52" : 110% of Normal
Water Year-To-Date: 20.42"
Oct 1, 2025 to May 27, 2026(238 of 239 days covered by obs)
NOAA Normal
23.14"
Departure from Normal
-2.72" : 88% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.14
2.25
-0.11
Feb
1.92
2.03
-0.11
Mar
2.60
2.70
-0.10
Apr
4.03
3.88
0.15
May
4.52
4.49
0.03
Jun
4.37
4.40
-0.03
Jul
3.95
4.01
-0.06
Aug
3.28
3.13
0.15
Sep
3.11
3.07
0.04
Oct
3.20
3.17
0.03
Nov
3.05
2.94
0.11
Dec
2.26
2.32
-0.06
38.43
38.39
0.04