| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 67j - Northern Glaciated Limestone Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 07416 - Franklin, NJ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 16 | 25 | 35 | 45 | 54 | 59 | 57 | 49 | 38 | 30 | 21 | 37 |
| Avg Max Temp (°F) | 35 | 37 | 47 | 58 | 70 | 78 | 83 | 81 | 73 | 62 | 51 | 39 | 59 |
| Avg Precip (In.) | 3.96 | 2.99 | 4.04 | 4.29 | 4.58 | 4.61 | 4.5 | 4.23 | 4.56 | 3.83 | 4.05 | 3.69 | 49.33 |