Philadelphia, PA: records
: The hottest day on record in Philadelphia, PA: 106°F on Wednesday 7 August 1918.
- The record begins
- 1871
All-time records
- The coldest night on record in Philadelphia, PA: a low of -11°F on Friday 9 February 1934.
- The wettest day on record in Philadelphia, PA: 8.02 in on Sunday 28 July 2013.
- The warmest night on record in Philadelphia, PA: a low of 83°F on Saturday 23 July 2011 and Saturday 24 July 2010.
- The coldest day on record in Philadelphia, PA: a high of 5°F on Friday 10 February 1899 and Thursday 30 December 1880.
Records by month
| Month | Highest | Lowest | Wettest day |
|---|---|---|---|
| January | 74°F | -7°F , | 2.49 in |
| February | 79°F | -11°F | 3.86 in |
| March | 87°F | 5°F | 3.09 in |
| April | 95°F | 14°F | 4.42 in |
| May | 98°F | 28°F | 3.16 in |
| June | 102°F | 44°F , , and 4 more | 4.62 in |
| July | 104°F , | 51°F | 8.02 in |
| August | 106°F | 44°F | 5.63 in |
| September | 102°F | 35°F | 6.63 in |
| October | 96°F | 25°F , | 5.53 in |
| November | 84°F | 8°F | 3.99 in |
| December | 73°F , | -5°F | 3.71 in |
Streaks, months and years
- The longest run of days with a high of 90°F or above in Philadelphia, PA: 18 days, from Friday 29 July to Monday 15 August 1988.
- The longest run of days with a high of 32°F or below in Philadelphia, PA: 15 days, from Monday 5 February to Monday 19 February 1979.
- The wettest month on record in Philadelphia, PA: August 2011, with 19.31 in of precipitation.
- The driest month on record in Philadelphia, PA: October 2024, with a trace of precipitation.
- The wettest year on record in Philadelphia, PA: 2011, with 64.33 in of precipitation.
- The driest year on record in Philadelphia, PA: 1922, with 29.31 in of precipitation.
Daily records by decade
- Record highs
- Record lows
Every decade as a table
| Decade | Record highs | Record lows | Years in the record |
|---|---|---|---|
| 1870s | 0 | 0 | 9 |
| 1880s | 0 | 0 | 10 |
| 1890s | 0 | 0 | 10 |
| 1900s | 66 | 34 | 10 |
| 1910s | 94 | 39 | 10 |
| 1920s | 85 | 36 | 10 |
| 1930s | 65 | 28 | 10 |
| 1940s | 82 | 86 | 10 |
| 1950s | 54 | 50 | 10 |
| 1960s | 30 | 124 | 10 |
| 1970s | 38 | 39 | 10 |
| 1980s | 34 | 36 | 10 |
| 1990s | 53 | 6 | 10 |
| 2000s | 31 | 2 | 10 |
| 2010s | 37 | 4 | 10 |
| 2020s | 32 | 0 | 7 |