Weather in Philadelphia, Pennsylvania, United States in August
In an average August, Philadelphia sees a daily high around 85°F and a low around 65°F, based on 1981–2026 of local climate records.
| Average high | 85°F |
|---|---|
| Typical high range | 77°F to 92°F |
| Average low | 65°F |
| Typical low range | 58°F to 72°F |
| Average daily precipitation | 0.20 in |
August records
The most extreme August on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
102°F
2001-08-09
Lowest
66°F
2007-08-21
Low
Highest
78°F
2016-08-14
Lowest
44°F
1982-08-29
Feels-like
Highest
138°F
2022-08-09
Lowest
38°F
1982-08-29
Humidity
Highest
23.2 g/m³
2009-08-21
Lowest
5.8 g/m³
1982-08-29
Wind
Highest
33 mph
2020-08-04
Lowest
3 mph
1990-08-08
Precip
Wettest
15.14 in
2011
Driest
1.42 in
2025
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