Viewing Station: IA-SX-19 : Rock Valley 0.4 WSW
Jun 10, 2026 - Aug 17, 202642 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.49"
August 1-17, 2026(17 of 17 days covered by obs)
NOAA Normal
1.78"
Departure from Normal
-0.29" : 84% of Normal
Year-To-Date: 8.58"
Jan 1 to Aug 17, 2026(66 of 229 days covered by obs)
NOAA Normal
19.66"
Departure from Normal
-11.08" : 44% of Normal
Water Year-To-Date: 8.58"
Oct 1, 2025 to Aug 17, 2026(66 of 321 days covered by obs)
NOAA Normal
24.21"
Departure from Normal
-15.63" : 35% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.63
0.59
0.04
Feb
0.80
0.79
0.01
Mar
1.55
1.50
0.05
Apr
2.97
2.91
0.06
May
4.10
3.93
0.17
Jun
4.55
4.60
-0.05
Jul
3.28
3.24
0.04
Aug
3.24
3.30
-0.06
Sep
3.16
2.89
0.27
Oct
2.38
2.44
-0.06
Nov
1.29
1.33
-0.04
Dec
0.88
0.86
0.02
28.83
28.38
0.45