US Geography / US Weather / Maine Weather / Portland |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 30 | 34 | 41 | 52 | 64 | 72 | 78 | 77 | 68 | 58 | 47 | 35 |
| Avg. Low | 11 | 14 | 24 | 34 | 44 | 52 | 58 | 57 | 48 | 38 | 30 | 17 |
| Mean | 21 | 24 | 34 | 44 | 54 | 62 | 68 | 67 | 58 | 48 | 38 | 27 |
| Avg. Precip. | 3.5 in | 3.3 in | 3.7 in | 4.1 in | 3.6 in | 3.4 in | 3.1 in | 2.9 in | 3.1 in | 3.9 in | 5.3 in | 4.6 in |
Degrees in Fahrenheit
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