Missouri · county areal climate 1951–2025
St. Louis County, MO
A 56.6°F / 42.0" normal · 2025 ran +0.7°F vs normal.
2026 so far · through Jul 10: This area is running
+2.2°F (55.6°F) vs the 1996–2025 to-date normal — the
4th warmest start of 76 years. Precipitation
101% of normal.
U.S. year-to-date → Normal (1996–2025)
56.6°F
annual mean · 42.0" precipitation
2025 vs Normal
+0.7°F
57.3°F · 37.8" (90% of normal)
Warmest Year
59.3°F
2012 · coldest 53.2°F (1979)
Wettest Year
57.0in
2015 · driest 23.7" (1953)
Hottest Day
110.4°F
Jul 14 · 1954
Coldest Day
-17.5°F
Dec 23 · 1989
Biggest Rain Day
4.77in
Jun 15 · 1957
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.