Ohio · county areal climate 1951–2025
Union County, OH
A 52.0°F / 39.4" normal · 2025 ran -0.4°F vs normal.
2026 so far · through Jul 9: This area is running
+0.9°F (49.2°F) vs the 1996–2025 to-date normal — the
12th warmest start of 76 years. Precipitation
97% of normal.
U.S. year-to-date → Normal (1996–2025)
52.0°F
annual mean · 39.4" precipitation
2025 vs Normal
-0.4°F
51.6°F · 33.1" (84% of normal)
Warmest Year
54.9°F
2024 · coldest 48.3°F (1978)
Wettest Year
54.2in
2011 · driest 24.6" (1963)
Hottest Day
102.3°F
Jun 26 · 1988
Coldest Day
-23.3°F
Jan 19 · 1994
Biggest Rain Day
4.14in
Aug 31 · 2005
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.