Iowa · county areal climate 1951–2025

Delaware County, IA

A 38.1" / 47.5°F normal · 2025 ran 98% of normal precipitation.
2026 so far · through Jul 25: This area is at 114% (26.22") of the 1996–2025 to-date normal — the 10th wettest start of 76 years. Temperature +2.1°F vs normal. U.S. year-to-date →

Normal (1996–2025)

38.1in
annual precipitation · 47.5°F

2025 vs Normal

98%
37.5" · 48.7°F (+1.2 vs normal)

Wettest Year

52.2in
2018

Driest Year

21.9in
1988

Biggest Rain Day

4.04in
Sep 13 · 1961

Warmest Year

50.7°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

18°
J
22°
F
35°
M
47°
A
59°
M
69°
J
72°
J
70°
A
63°
S
50°
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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