Orange, Massachusetts has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.2 °F (low) to 58.2 °F (high). Annual precipitation averages 46.8 Inches. Orange is located in USDA Plant Hardiness Zone 5b. 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 | 12.7 °F | 32.2 °F | 3.66 in. |
| February | 14.0 °F | 35.5 °F | 3.14 in. |
| March | 22.7 °F | 43.6 °F | 3.91 in. |
| April | 33.5 °F | 57.0 °F | 3.75 in. |
| May | 44.4 °F | 68.7 °F | 3.42 in. |
| June | 54.1 °F | 77.5 °F | 4.28 in. |
| July | 59.5 °F | 82.9 °F | 3.97 in. |
| August | 57.6 °F | 81.2 °F | 4.08 in. |
| September | 49.6 °F | 73.7 °F | 4.02 in. |
| October | 38.2 °F | 60.2 °F | 4.83 in. |
| November | 28.7 °F | 48.2 °F | 3.69 in. |
| December | 19.9 °F | 37.6 °F | 4.05 in. |
| Annual | 36.2 °F | 58.2 °F | 46.8 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |