Fort Loudon, 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 63.7 °F (high). Annual precipitation averages 44.1 Inches. Fort Loudon is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.1 °F | 39.5 °F | 2.97 in. |
| February | 23.3 °F | 42.8 °F | 2.48 in. |
| March | 30.5 °F | 51.2 °F | 3.68 in. |
| April | 40.2 °F | 64.0 °F | 3.87 in. |
| May | 49.8 °F | 73.0 °F | 4.48 in. |
| June | 58.7 °F | 81.8 °F | 4.34 in. |
| July | 63.5 °F | 86.6 °F | 3.77 in. |
| August | 61.5 °F | 84.6 °F | 4.01 in. |
| September | 54.4 °F | 77.8 °F | 4.09 in. |
| October | 42.9 °F | 65.9 °F | 3.93 in. |
| November | 33.5 °F | 54.1 °F | 3.14 in. |
| December | 26.3 °F | 43.2 °F | 3.37 in. |
| Annual | 42.2 °F | 63.7 °F | 44.13 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |