Missouri · county areal climate 1951–2025
Washington County, MO
A 55.5°F / 46.0" normal · 2025 ran +0.9°F vs normal.
2026 so far · through Jul 10: This area is running
+2.8°F (55.2°F) vs the 1996–2025 to-date normal — the
3rd warmest start of 76 years. Precipitation
102% of normal.
U.S. year-to-date → Normal (1996–2025)
55.5°F
annual mean · 46.0" precipitation
2025 vs Normal
+0.9°F
56.4°F · 43.2" (94% of normal)
Warmest Year
58.6°F
2012 · coldest 52.3°F (1979)
Wettest Year
62.0in
1993 · driest 23.1" (1953)
Hottest Day
108.0°F
Jun 29 · 2012
Coldest Day
-21.0°F
Jan 17 · 1977
Biggest Rain Day
4.56in
Nov 5 · 2024
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.