Viewing Station: IA-HR-20 : Portsmouth 4.8 W
Mar 8, 2024 - Aug 18, 2026127 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 6.16"
August 1-18, 2026(4 of 18 days covered by obs)
NOAA Normal
2.57"
Departure from Normal
3.59" : 239% of Normal
Year-To-Date: 20.31"
Jan 1 to Aug 18, 2026(32 of 230 days covered by obs)
NOAA Normal
23.37"
Departure from Normal
-3.06" : 87% of Normal
Water Year-To-Date: 23.45"
Oct 1, 2025 to Aug 18, 2026(41 of 322 days covered by obs)
NOAA Normal
28.37"
Departure from Normal
-4.92" : 83% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.76
0.76
0.00
Feb
0.97
0.98
-0.01
Mar
1.92
1.84
0.08
Apr
3.42
3.38
0.04
May
4.90
4.84
0.06
Jun
5.02
4.93
0.09
Jul
3.81
3.79
0.02
Aug
4.43
4.14
0.29
Sep
3.34
3.26
0.08
Oct
2.44
2.54
-0.10
Nov
1.37
1.42
-0.05
Dec
1.19
1.26
-0.07
33.57
33.14
0.43