Iowa · county areal climate 1951–2025
Union County, IA
A 50.2°F / 35.4" normal · 2025 ran +1°F vs normal.
2026 so far · through Jul 9: This area is running
+3.6°F (49.9°F) vs the 1996–2025 to-date normal — the
3rd warmest start of 76 years. Precipitation
110% of normal.
U.S. year-to-date → Normal (1996–2025)
50.2°F
annual mean · 35.4" precipitation
2025 vs Normal
+1°F
51.2°F · 33.0" (93% of normal)
Warmest Year
53.5°F
2012 · coldest 46.0°F (1951)
Wettest Year
53.9in
1973 · driest 17.3" (1988)
Hottest Day
103.8°F
Aug 17 · 1983
Coldest Day
-28.1°F
Feb 3 · 1996
Biggest Rain Day
5.73in
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.