| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | 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: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 84d - Inner Coastal Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 07748 - Middletown, NJ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 25 | 32 | 41 | 51 | 60 | 66 | 64 | 57 | 45 | 37 | 28 | 44 |
| Avg Max Temp (°F) | 39 | 41 | 50 | 60 | 71 | 79 | 84 | 83 | 76 | 65 | 55 | 44 | 62 |
| Avg Precip (In.) | 3.96 | 3.08 | 4.17 | 4.01 | 4.24 | 3.59 | 4.51 | 4.43 | 4.16 | 3.58 | 3.98 | 3.79 | 47.52 |