Houtzdale, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.3 °F (low) to 58.2 °F (high). Annual precipitation averages 42.3 Inches. Houtzdale 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.6 °F | 33.1 °F | 2.77 in. |
| February | 17.6 °F | 36.1 °F | 2.21 in. |
| March | 24.4 °F | 45.0 °F | 3.08 in. |
| April | 35.0 °F | 58.7 °F | 3.73 in. |
| May | 45.1 °F | 69.5 °F | 4.09 in. |
| June | 53.8 °F | 76.9 °F | 4.46 in. |
| July | 58.0 °F | 80.9 °F | 4.3 in. |
| August | 56.4 °F | 79.5 °F | 4.28 in. |
| September | 49.3 °F | 72.6 °F | 3.93 in. |
| October | 38.5 °F | 60.4 °F | 3.49 in. |
| November | 29.7 °F | 48.3 °F | 2.94 in. |
| December | 22.6 °F | 37.3 °F | 2.98 in. |
| Annual | 37.3 °F | 58.2 °F | 42.26 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |