Missouri · county areal climate 1951–2025
Mercer County, MO
A 51.9°F / 37.3" normal · 2025 ran +0.9°F vs normal.
2026 so far · through Jul 9: This area is running
+3.4°F (51.6°F) vs the 1996–2025 to-date normal — the
3rd warmest start of 76 years. Precipitation
119% of normal.
U.S. year-to-date → Normal (1996–2025)
51.9°F
annual mean · 37.3" precipitation
2025 vs Normal
+0.9°F
52.8°F · 33.5" (90% of normal)
Warmest Year
55.5°F
2012 · coldest 48.4°F (1951)
Wettest Year
59.3in
1993 · driest 18.7" (1988)
Hottest Day
106.2°F
Jul 31 · 1980
Coldest Day
-24.9°F
Dec 23 · 1989
Biggest Rain Day
4.74in
Sep 13 · 1961
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.