|
Typical Philadelphia May Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 74.3 °F | |
| Average daily low | 55.0 °F | |
| Average monthly precipitation | 3.3 inches | |
| Average monthly snow | none | |
| Daily chance of precipitation | 35.6% | |
| Daily chance of snow | 0% | |
|
Philadelphia May Weather Records 1894–2024 |
||
|---|---|---|
| Highest temperature | 97 °F | May 31, 1991 |
| Lowest temperature | 25 °F | May 1, 1914 |
| Highest daily low | 76 °F | May 28, 1991 |
| Lowest daily high | 43 °F | May 2, 1909 |
| Hottest average high temperature | 82.7 °F | 1991 |
| Coldest average high temperature | 64.0 °F | 1917 |
| Most daily precipitation | 2.5 inches | May 24, 1999 |
| Most monthly precipitation | 7.4 inches | 1948 |
| Most daily snow | 1.0 inches | May 29, 1901 |
| Most monthly snow | 1.0 inches | 1901 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| May 1 | 69.7 | 50.1 | 90 | 25 |
| May 2 | 70.0 | 50.4 | 89 | 27 |
| May 3 | 70.3 | 50.8 | 91 | 26 |
| May 4 | 70.4 | 51.0 | 91 | 28 |
| May 5 | 70.5 | 51.2 | 91 | 29 |
| May 6 | 70.8 | 51.4 | 91 | 32 |
| May 7 | 71.0 | 51.6 | 92 | 35 |
| May 8 | 71.3 | 51.9 | 94 | 35 |
| May 9 | 71.7 | 52.3 | 94 | 33 |
| May 10 | 72.0 | 52.7 | 92 | 29 |
| May 11 | 72.4 | 53.0 | 90 | 28 |
| May 12 | 72.8 | 53.4 | 90 | 28 |
| May 13 | 73.1 | 53.7 | 90 | 33 |
| May 14 | 73.5 | 54.1 | 92 | 33 |
| May 15 | 73.8 | 54.5 | 89 | 32 |
| May 16 | 74.1 | 54.9 | 90 | 29 |
| May 17 | 74.4 | 55.2 | 92 | 29 |
| May 18 | 74.8 | 55.5 | 94 | 32 |
| May 19 | 75.2 | 55.8 | 96 | 32 |
| May 20 | 75.4 | 56.1 | 95 | 35 |
| May 21 | 75.6 | 56.4 | 96 | 29 |
| May 22 | 75.8 | 56.7 | 96 | 32 |
| May 23 | 76.1 | 57.0 | 95 | 38 |
| May 24 | 76.4 | 57.3 | 92 | 40 |
| May 25 | 76.7 | 57.6 | 96 | 40 |
| May 26 | 77.1 | 57.9 | 92 | 35 |
| May 27 | 77.4 | 58.3 | 95 | 32 |
| May 28 | 77.9 | 58.7 | 94 | 30 |
| May 29 | 78.3 | 59.2 | 95 | 37 |
| May 30 | 78.4 | 59.5 | 97 | 37 |
| May 31 | 78.7 | 59.8 | 97 | 34 |