| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 59c - Southern New England Coastal Plains and Hills | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 01969 - Rowley, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 19 | 28 | 37 | 46 | 55 | 62 | 60 | 52 | 42 | 34 | 24 | 40 |
| Avg Max Temp (°F) | 35 | 37 | 45 | 56 | 66 | 75 | 81 | 79 | 71 | 61 | 50 | 40 | 58 |
| Avg Precip (In.) | 4.25 | 3.63 | 4.3 | 4.44 | 3.53 | 3.7 | 3.47 | 3.31 | 3.9 | 4.24 | 4.8 | 4.38 | 47.96 |