| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 84a - Cape Cod and Islands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 02540 - Falmouth, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 22 | 29 | 38 | 47 | 57 | 63 | 62 | 55 | 44 | 36 | 26 | 42 |
| Avg Max Temp (°F) | 38 | 39 | 46 | 55 | 65 | 74 | 80 | 79 | 72 | 62 | 52 | 43 | 59 |
| Avg Precip (In.) | 4.32 | 3.51 | 4.38 | 4.3 | 3.59 | 3.66 | 3.17 | 3.93 | 3.79 | 4.19 | 4.34 | 4.37 | 47.55 |