| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| 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: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 08077 - Riverton, NJ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 25 | 32 | 41 | 51 | 60 | 65 | 64 | 56 | 44 | 36 | 28 | 44 |
| Avg Max Temp (°F) | 41 | 44 | 54 | 65 | 75 | 83 | 87 | 85 | 79 | 67 | 56 | 45 | 65 |
| Avg Precip (In.) | 3.84 | 2.92 | 4.11 | 3.93 | 4.41 | 3.94 | 4.8 | 4.92 | 4.25 | 3.45 | 3.56 | 3.65 | 47.79 |