| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 59f - Gulf of Maine Coastal Lowland | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 04039 - Gray, ME | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 13 | 23 | 33 | 44 | 53 | 58 | 57 | 49 | 38 | 29 | 17 | 35 |
| Avg Max Temp (°F) | 30 | 33 | 42 | 54 | 67 | 75 | 81 | 79 | 70 | 59 | 46 | 35 | 56 |
| Avg Precip (In.) | 4.11 | 3.25 | 4.48 | 4.42 | 3.97 | 3.75 | 3.65 | 3.3 | 3.59 | 4.38 | 4.73 | 4.26 | 47.89 |