Pennsylvania · county areal climate 1951–2025

Chester County, PA

A 48.6" / 53.8°F normal · 2025 ran 85% of normal precipitation.
2026 so far · through Jul 25: This area is at 71% (18.99") of the 1996–2025 to-date normal — the 5th driest start of 76 years. Temperature +0.4°F vs normal. U.S. year-to-date →

Normal (1996–2025)

48.6in
annual precipitation · 53.8°F

2025 vs Normal

85%
41.2" · 53.6°F (-0.2 vs normal)

Wettest Year

70.3in
2018

Driest Year

32.1in
1965

Biggest Rain Day

6.52in
Aug 28 · 2011

Warmest Year

55.5°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

31°
J
34°
F
42°
M
52°
A
62°
M
71°
J
76°
J
74°
A
67°
S
56°
O
45°
N
36°
D
—— 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.

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