Ohio · county areal climate 1951–2025
Delaware County, OH
A 52.3°F / 41.0" normal · 2025 ran -0.4°F vs normal.
2026 so far · through Jul 9: This area is running
+0.8°F (49.5°F) vs the 1996–2025 to-date normal — the
13th warmest start of 76 years. Precipitation
103% of normal.
U.S. year-to-date → Normal (1996–2025)
52.3°F
annual mean · 41.0" precipitation
2025 vs Normal
-0.4°F
51.9°F · 35.3" (86% of normal)
Warmest Year
55.2°F
2024 · coldest 48.6°F (1978)
Wettest Year
55.1in
2011 · driest 25.6" (1963)
Hottest Day
102.3°F
Jun 26 · 1988
Coldest Day
-23.7°F
Jan 19 · 1994
Biggest Rain Day
4.13in
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.