| 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. 11 - Oct. 20 | |
| Average Last Frost Date: | May 11 - May 20 | |
| 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 07838 - Great Meadows, NJ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 18 | 26 | 36 | 46 | 55 | 60 | 58 | 50 | 38 | 31 | 22 | 38 |
| Avg Max Temp (°F) | 36 | 39 | 48 | 60 | 71 | 78 | 83 | 81 | 74 | 63 | 52 | 41 | 60 |
| Avg Precip (In.) | 3.95 | 2.94 | 3.98 | 4.26 | 4.79 | 4.58 | 4.72 | 4.43 | 4.79 | 3.83 | 4.09 | 3.77 | 50.15 |