Viewing Station: IA-DC-11 : Grand River 0.5 NE
May 7, 2024 - Sep 17, 2026101 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.66"
September 1-18, 2026(8 of 18 days covered by obs)
NOAA Normal
2.23"
Departure from Normal
1.43" : 164% of Normal
Year-To-Date: 25.13"
Jan 1 to Sep 18, 2026(33 of 261 days covered by obs)
NOAA Normal
29.36"
Departure from Normal
-4.23" : 86% of Normal
Water Year-To-Date: 26.59"
Oct 1, 2025 to Sep 18, 2026(35 of 353 days covered by obs)
NOAA Normal
35.65"
Departure from Normal
-9.06" : 75% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.97
0.92
0.05
Feb
1.31
1.36
-0.05
Mar
2.16
2.18
-0.02
Apr
3.97
4.00
-0.03
May
5.29
5.39
-0.10
Jun
4.99
5.04
-0.05
Jul
4.33
4.36
-0.03
Aug
4.11
4.24
-0.13
Sep
3.72
3.87
-0.15
Oct
2.81
2.82
-0.01
Nov
2.05
2.06
-0.01
Dec
1.43
1.43
0.00
37.14
37.67
-0.53