Maine weather by month
Average temperatures and rainfall across Maine, based on 30 years of climate data.
Monthly climate (Portland)
| Month | High / Low | Rainfall | Wet days |
|---|---|---|---|
| Jan | 32° / 20° | 3.9 in | 9.9 |
| Feb | 33° / 21° | 3.6 in | 8.9 |
| Mar | 38° / 28° | 4.6 in | 10.9 |
| Apr | 47° / 38° | 4.7 in | 10.7 |
| May | 56° / 47° | 3.9 in | 11 |
| Jun | 65° / 56° | 4.0 in | 10.3 |
| Jul | 71° / 63° | 3.1 in | 9.2 |
| Aug | 71° / 63° | 3.2 in | 8.4 |
| Sep | 65° / 57° | 3.7 in | 8.7 |
| Oct | 56° / 47° | 5.4 in | 10.6 |
| Nov | 46° / 37° | 4.5 in | 10.4 |
| Dec | 37° / 28° | 4.9 in | 11 |
Cities in Maine
- 1Portland27°–66°67kAug
- 2Lewiston21°–70°36kAug
- 3Bangor19°–68°32kAug
- 4West Scarborough25°–72°28kAug
- 5South Portland27°–66°26kAug
- 6South Portland Gardens27°–66°24kAug
- 7Auburn21°–70°23kAug
- 8Biddeford25°–72°21kAug
- 9Sanford23°–72°21kAug
- 10Saco25°–72°19kAug
- 11Augusta21°–70°19kAug
- 12Westbrook27°–66°18kAug
- 13Waterville19°–70°16kAug
- 14Brunswick23°–70°15kAug