Iowa · county areal climate 1951–2025

Hamilton County, IA

A 34.9" / 47.9°F normal · 2025 ran 114% of normal precipitation.
2026 so far · through Jul 25: This area is at 104% (22.33") of the 1996–2025 to-date normal — the 23rd wettest start of 76 years. Temperature +2.8°F vs normal. U.S. year-to-date →

Normal (1996–2025)

34.9in
annual precipitation · 47.9°F

2025 vs Normal

114%
39.9" · 48.8°F (+0.9 vs normal)

Wettest Year

54.7in
1993

Driest Year

20.1in
1988

Biggest Rain Day

3.97in
Aug 16 · 1977

Warmest Year

51.2°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

18°
J
23°
F
36°
M
48°
A
60°
M
70°
J
73°
J
70°
A
64°
S
51°
O
37°
N
24°
D
—— normal temperature (°F) · ▮ normal precipitation (in) · 1996–2025
Areal nClimGrid averages (NOAA/NCEI) over the whole area — an average across the region, not a single station. Separate from the station records.

Nearby

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