Pittsfield, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.4 °F (low) to 54.8 °F (high). Annual precipitation averages 45.1 Inches. Pittsfield is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.8 °F | 27.3 °F | 3.41 in. |
| February | 8.0 °F | 30.8 °F | 2.83 in. |
| March | 18.9 °F | 39.8 °F | 3.54 in. |
| April | 31.1 °F | 53.0 °F | 3.85 in. |
| May | 42.2 °F | 65.8 °F | 3.46 in. |
| June | 52.0 °F | 74.4 °F | 4.2 in. |
| July | 57.7 °F | 79.8 °F | 3.41 in. |
| August | 55.9 °F | 78.8 °F | 3.52 in. |
| September | 47.9 °F | 71.3 °F | 3.73 in. |
| October | 37.1 °F | 58.0 °F | 4.79 in. |
| November | 27.4 °F | 45.0 °F | 4.17 in. |
| December | 15.8 °F | 33.5 °F | 4.17 in. |
| Annual | 33.4 °F | 54.8 °F | 45.08 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |