| 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 19124 - Philadelphia, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 25 | 33 | 42 | 52 | 61 | 66 | 65 | 58 | 46 | 37 | 29 | 45 |
| Avg Max Temp (°F) | 40 | 44 | 53 | 64 | 74 | 82 | 87 | 85 | 78 | 67 | 56 | 45 | 64 |
| Avg Precip (In.) | 3.81 | 2.88 | 4.06 | 3.87 | 4.39 | 3.89 | 4.67 | 4.59 | 4.23 | 3.35 | 3.56 | 3.59 | 46.89 |