Iowa · county areal climate 1951–2025
Shelby County, IA
A 49.2°F / 33.9" normal · 2025 ran +0.9°F vs normal.
2026 so far · through Jul 10: This area is running
+2.9°F (48.4°F) vs the 1996–2025 to-date normal — the
5th warmest start of 76 years. Precipitation
75% of normal.
U.S. year-to-date → Normal (1996–2025)
49.2°F
annual mean · 33.9" precipitation
2025 vs Normal
+0.9°F
50.1°F · 32.9" (97% of normal)
Warmest Year
52.2°F
2012 · coldest 44.7°F (1951)
Wettest Year
48.1in
2015 · driest 20.4" (1988)
Hottest Day
104.1°F
Jul 31 · 1955
Coldest Day
-28.1°F
Jan 12 · 1974
Biggest Rain Day
5.03in
Sep 11 · 1972
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.