Iowa · county areal climate 1951–2025
Grundy County, IA
A 47.9°F / 35.2" normal · 2025 ran +1.3°F vs normal.
2026 so far · through Jul 10: This area is running
+2.6°F (46.6°F) vs the 1996–2025 to-date normal — the
6th warmest start of 76 years. Precipitation
118% of normal.
U.S. year-to-date → Normal (1996–2025)
47.9°F
annual mean · 35.2" precipitation
2025 vs Normal
+1.3°F
49.2°F · 37.9" (108% of normal)
Warmest Year
51.3°F
2012 · coldest 43.4°F (1951)
Wettest Year
51.0in
1993 · driest 19.7" (1988)
Hottest Day
103.1°F
Aug 18 · 1988
Coldest Day
-29.6°F
Feb 3 · 1996
Biggest Rain Day
3.83in
Jul 10 · 2000
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.