Over the last 365 complete days, the highest daily maximum at Philadelphia was 39°C on Jul 2 2026 and the lowest was -7°C on Jan 24 2026. The observed high is the highest temperature in the airport's own METAR reports during the local calendar day. Updated twice a day.
The first check appears after the first archived day ends.
Scorecard appears after 7 checked days (0/7 so far).
| Month | Average high | Warmest day | Coolest day | Days |
|---|---|---|---|---|
| Oct 2026 | 21.4° | 30° | 16° | 29 |
| Sep 2026 | 26.0° | 33° | 19° | 30 |
| Aug 2026 | 30.4° | 34° | 26° | 31 |
| Jul 2026 | 31.2° | 39° | 25° | 31 |
| Jun 2026 | 29.7° | 36° | 24° | 30 |
| May 2026 | 23.6° | 36° | 14° | 31 |
| Apr 2026 | 20.8° | 33° | 12° | 30 |
| Mar 2026 | 14.9° | 28° | 1° | 31 |
| Feb 2026 | 4.6° | 15° | -7° | 28 |
| Jan 2026 | 3.3° | 14° | -7° | 31 |
| Dec 2025 | 5.6° | 16° | -2° | 31 |
| Nov 2025 | 12.9° | 21° | 6° | 30 |
| Oct 2025 | 19.0° | 22° | 16° | 2 |