| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F | |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F | |
| 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: | 84d - Inner Coastal Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 08085 - Swedesboro, NJ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 26 | 33 | 42 | 52 | 62 | 67 | 65 | 58 | 46 | 38 | 29 | 45 |
| Avg Max Temp (°F) | 40 | 43 | 52 | 63 | 74 | 82 | 87 | 85 | 78 | 67 | 56 | 45 | 64 |
| Avg Precip (In.) | 3.65 | 2.85 | 4.03 | 3.71 | 4.14 | 3.71 | 4.34 | 4.06 | 4.05 | 3.27 | 3.47 | 3.58 | 44.86 |