Last frost date in Bangor, Maine
May 4
Average last frost in spring. In an early year (1 in 10) it's over by April 24; in a late year (1 in 10) it comes after May 17.
October 4
Average first frost in fall. 1 year in 10 it comes by September 23.
Source: NOAA U.S. Climate Normals 1991–2020, station Bangor International AP (USW00014606), 2.6 miles from Bangor, elevation 148 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 24 | May 4 | May 17 |
| First frost in fall | Sept 23 | Oct 4 | Oct 21 |
Frost-free days in an average year: 152
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 17 | Sept 25 |
| Frost (32°F) | Every year | May 4 | Oct 4 |
| Hard freeze (28°F) | Every year | Apr 23 | Oct 17 |
Nights at 32°F or colder in an average year: 161
What to plant now in Bangor
- Spring planting calendar for an average last frost around April 30 Bangor: May 4
- Fall planting calendar for an average first frost around September 30 Bangor: October 4
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Maine
- Waterville 47 mi · last frost May 2
- Augusta 58 mi · last frost Apr 27
- Lewiston 85 mi · last frost Apr 25
- Portland 108 mi · last frost Apr 26
- Biddeford 125 mi · last frost May 9
Updated