Nemacolin, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.2 °F (low) to 63 °F (high). Annual precipitation averages 43.3 Inches. Nemacolin is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.9 °F | 38.9 °F | 3.25 in. |
| February | 23.4 °F | 42.0 °F | 2.83 in. |
| March | 30.0 °F | 51.2 °F | 3.52 in. |
| April | 39.8 °F | 64.0 °F | 3.65 in. |
| May | 50.1 °F | 73.2 °F | 4.29 in. |
| June | 58.7 °F | 80.6 °F | 4.39 in. |
| July | 62.9 °F | 84.1 °F | 4.59 in. |
| August | 61.5 °F | 83.1 °F | 3.78 in. |
| September | 54.6 °F | 77.1 °F | 3.49 in. |
| October | 43.1 °F | 65.0 °F | 3.04 in. |
| November | 33.5 °F | 53.2 °F | 3.13 in. |
| December | 26.9 °F | 43.0 °F | 3.31 in. |
| Annual | 42.2 °F | 63 °F | 43.27 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |