
| Month | Low | High |
|---|---|---|
| Jan | 18.1°F | 33.8°F |
| Feb | 20.3°F | 36.3°F |
| Mar | 27.8°F | 44.8°F |
| Apr | 37.1°F | 55.5°F |
| May | 47.0°F | 67.0°F |
| Jun | 55.9°F | 75.5°F |
| Jul | 62.0°F | 81.2°F |
| Aug | 60.9°F | 78.9°F |
| Sept | 53.2°F | 71.0°F |
| Oct | 42.9°F | 60.3°F |
| Nov | 34.2°F | 49.3°F |
| Dec | 23.8°F | 38.6°F |
Blue Hill's coldest month is January when the average temperature overnight is 18.1°F. In July, the warmest month, the average day time temperature rises to 81.2°F.

| Month | Precipitation |
|---|---|
| Jan | 4.78in. |
| Feb | 4.06in. |
| Mar | 4.79in. |
| Apr | 4.32in. |
| May | 3.79in. |
| Jun | 3.93in. |
| Jul | 3.74in. |
| Aug | 4.06in. |
| Sept | 4.13in. |
| Oct | 4.42in. |
| Nov | 4.64in. |
| Dec | 4.56in. |
The driest month in Blue Hill is July with 3.74 inches of precipitation, and with 4.79 inches March is the wettest month.