| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F | |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| Average First Frost Date: | Nov. 1 - Nov. 10 | |
| Average Last Frost Date: | Apr. 11 - Apr. 20 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 63a - Delaware River Terraces and Uplands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 19114 - Philadelphia, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 24 | 32 | 41 | 50 | 60 | 65 | 64 | 56 | 44 | 36 | 28 | 44 |
| Avg Max Temp (°F) | 41 | 44 | 53 | 64 | 74 | 83 | 87 | 85 | 78 | 67 | 56 | 45 | 65 |
| Avg Precip (In.) | 3.84 | 2.93 | 4.1 | 3.9 | 4.49 | 3.96 | 4.89 | 4.78 | 4.39 | 3.43 | 3.63 | 3.65 | 47.98 |