| 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: | Nov. 1 - Nov. 10 | |
| Average Last Frost Date: | Apr. 11 - Apr. 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 64e - Glaciated Triassic Lowlands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 07657 - Ridgefield, NJ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 25 | 33 | 42 | 52 | 61 | 67 | 66 | 58 | 47 | 38 | 29 | 45 |
| Avg Max Temp (°F) | 38 | 41 | 50 | 61 | 71 | 80 | 85 | 83 | 75 | 64 | 54 | 43 | 62 |
| Avg Precip (In.) | 3.9 | 3 | 4.19 | 4.15 | 4.57 | 3.85 | 4.47 | 4.21 | 4.45 | 3.78 | 4.19 | 3.81 | 48.58 |