Standish, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.9 °F (low) to 56 °F (high). Annual precipitation averages 50.2 Inches. Standish is located in USDA Plant Hardiness Zone 5b. 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 | 10.0 °F | 30.1 °F | 3.36 in. |
| February | 11.0 °F | 33.1 °F | 3.49 in. |
| March | 20.6 °F | 41.3 °F | 4.22 in. |
| April | 31.9 °F | 54.2 °F | 4.52 in. |
| May | 42.9 °F | 66.1 °F | 3.88 in. |
| June | 53.4 °F | 74.7 °F | 4.62 in. |
| July | 59.0 °F | 80.5 °F | 4.01 in. |
| August | 57.3 °F | 79.5 °F | 3.62 in. |
| September | 49.5 °F | 71.6 °F | 4.03 in. |
| October | 37.7 °F | 58.3 °F | 5.53 in. |
| November | 28.1 °F | 46.3 °F | 4.38 in. |
| December | 17.5 °F | 35.7 °F | 4.55 in. |
| Annual | 34.9 °F | 56 °F | 50.21 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |