Iowa · county areal climate 1951–2025
Washington County, IA
A 50.4°F / 36.9" normal · 2025 ran +1°F vs normal.
2026 so far · through Jul 10: This area is running
+2.8°F (49.4°F) vs the 1996–2025 to-date normal — the
5th warmest start of 76 years. Precipitation
100% of normal.
U.S. year-to-date → Normal (1996–2025)
50.4°F
annual mean · 36.9" precipitation
2025 vs Normal
+1°F
51.4°F · 31.4" (85% of normal)
Warmest Year
53.7°F
2012 · coldest 46.6°F (1951)
Wettest Year
55.1in
2010 · driest 18.8" (1988)
Hottest Day
105.4°F
Jul 24 · 2012
Coldest Day
-28.2°F
Jan 31 · 2019
Biggest Rain Day
4.48in
Sep 10 · 2014
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.