Viewing Station: IA-BH-6 : Waterloo 1.9 SSE
Aug 7, 2007 - Sep 12, 20266,904 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.59"
September 1-12, 2026(12 of 12 days covered by obs)
NOAA Normal
1.45"
Departure from Normal
-0.86" : 41% of Normal
Year-To-Date: 31.61"
Jan 1 to Sep 12, 2026(244 of 255 days covered by obs)
NOAA Normal
28.30"
Departure from Normal
3.31" : 112% of Normal
Water Year-To-Date: 36.03"
Oct 1, 2025 to Sep 12, 2026(333 of 347 days covered by obs)
NOAA Normal
34.51"
Departure from Normal
1.52" : 104% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.11
1.07
0.04
Feb
1.15
1.21
-0.06
Mar
1.91
2.06
-0.15
Apr
3.87
3.94
-0.07
May
4.68
4.70
-0.02
Jun
5.77
5.68
0.09
Jul
4.26
4.63
-0.37
Aug
4.10
4.20
-0.10
Sep
3.62
3.43
0.19
Oct
2.77
2.85
-0.08
Nov
1.98
1.96
0.02
Dec
1.46
1.48
-0.02
36.68
37.21
-0.53