Holden, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.8 °F (low) to 54.4 °F (high). Annual precipitation averages 45.6 Inches. Holden is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.4 °F | 27.8 °F | 3.53 in. |
| February | 9.0 °F | 30.8 °F | 2.97 in. |
| March | 19.9 °F | 39.3 °F | 3.81 in. |
| April | 31.6 °F | 52.1 °F | 3.95 in. |
| May | 42.3 °F | 64.5 °F | 3.51 in. |
| June | 51.5 °F | 73.7 °F | 3.93 in. |
| July | 57.7 °F | 79.4 °F | 3.26 in. |
| August | 55.8 °F | 78.3 °F | 3.32 in. |
| September | 48.0 °F | 70.4 °F | 3.77 in. |
| October | 37.2 °F | 57.3 °F | 4.79 in. |
| November | 28.2 °F | 45.1 °F | 4.17 in. |
| December | 16.5 °F | 33.9 °F | 4.6 in. |
| Annual | 33.8 °F | 54.4 °F | 45.61 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |