Iowa · county areal climate 1951–2025
Decatur County, IA
A 51.2°F / 36.4" normal · 2025 ran +1.1°F vs normal.
2026 so far · through Jul 9: This area is running
+3.6°F (51.0°F) vs the 1996–2025 to-date normal — the
3rd warmest start of 76 years. Precipitation
114% of normal.
U.S. year-to-date → Normal (1996–2025)
51.2°F
annual mean · 36.4" precipitation
2025 vs Normal
+1.1°F
52.3°F · 32.7" (90% of normal)
Warmest Year
54.3°F
2012 · coldest 47.0°F (1951)
Wettest Year
53.8in
1993 · driest 17.7" (1988)
Hottest Day
104.8°F
Jul 31 · 1980
Coldest Day
-26.8°F
Feb 3 · 1996
Biggest Rain Day
5.15in
Sep 15 · 1992
Record
1951–2025
75 complete years · NOAA nClimGrid
—— 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.