Iowa · county areal climate 1951–2025
Cass County, IA
A 49.8°F / 34.4" normal · 2025 ran +0.8°F vs normal.
2026 so far · through Jul 9: This area is running
+3°F (49.0°F) vs the 1996–2025 to-date normal — the
5th warmest start of 76 years. Precipitation
85% of normal.
U.S. year-to-date → Normal (1996–2025)
49.8°F
annual mean · 34.4" precipitation
2025 vs Normal
+0.8°F
50.6°F · 30.2" (88% of normal)
Warmest Year
53.1°F
2012 · coldest 45.5°F (1951)
Wettest Year
49.8in
1993 · driest 19.0" (1988)
Hottest Day
103.8°F
Jul 22 · 1974
Coldest Day
-28.8°F
Jan 12 · 1974
Biggest Rain Day
5.16in
Sep 12 · 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.