Pennsylvania · county areal climate 1951–2025
Delaware County, PA
A 55.5°F / 47.0" normal · 2025 ran -0.3°F vs normal.
2026 so far · through Jul 10: This area is running
+0.3°F (51.9°F) vs the 1996–2025 to-date normal — the
17th warmest start of 76 years. Precipitation
78% of normal.
U.S. year-to-date → Normal (1996–2025)
55.5°F
annual mean · 47.0" precipitation
2025 vs Normal
-0.3°F
55.2°F · 38.7" (82% of normal)
Warmest Year
57.2°F
2012 · coldest 51.7°F (1958)
Wettest Year
66.9in
2018 · driest 30.7" (1965)
Hottest Day
102.3°F
Jul 23 · 2011
Coldest Day
-7.2°F
Jan 22 · 1985
Biggest Rain Day
7.59in
Aug 28 · 2011
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.