Mountainhome, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.7 °F (low) to 58.1 °F (high). Annual precipitation averages 52.6 Inches. Mountainhome is located in USDA Plant Hardiness Zone 6a. 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 | 15.9 °F | 33.3 °F | 3.91 in. |
| February | 17.2 °F | 36.0 °F | 2.99 in. |
| March | 24.6 °F | 44.3 °F | 3.89 in. |
| April | 35.1 °F | 58.0 °F | 4.34 in. |
| May | 45.6 °F | 68.6 °F | 4.27 in. |
| June | 54.7 °F | 76.6 °F | 5.32 in. |
| July | 59.3 °F | 81.1 °F | 4.57 in. |
| August | 57.8 °F | 79.3 °F | 4.74 in. |
| September | 50.8 °F | 72.7 °F | 5.18 in. |
| October | 39.3 °F | 60.4 °F | 5.24 in. |
| November | 30.2 °F | 48.9 °F | 3.69 in. |
| December | 22.4 °F | 38.3 °F | 4.43 in. |
| Annual | 37.7 °F | 58.1 °F | 52.57 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |