Limerick, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.3 °F (low) to 56 °F (high). Annual precipitation averages 50 Inches. Limerick 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 | 9.6 °F | 29.8 °F | 3.45 in. |
| February | 10.1 °F | 32.9 °F | 3.54 in. |
| March | 20.2 °F | 41.3 °F | 4.25 in. |
| April | 31.6 °F | 54.3 °F | 4.51 in. |
| May | 42.4 °F | 66.7 °F | 3.69 in. |
| June | 52.4 °F | 75.2 °F | 4.55 in. |
| July | 57.7 °F | 80.7 °F | 4.13 in. |
| August | 56.4 °F | 79.6 °F | 3.79 in. |
| September | 48.3 °F | 71.7 °F | 3.87 in. |
| October | 37.6 °F | 58.2 °F | 5.41 in. |
| November | 27.6 °F | 46.1 °F | 4.27 in. |
| December | 17.1 °F | 35.5 °F | 4.53 in. |
| Annual | 34.3 °F | 56 °F | 49.99 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 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |