Allport, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.3 °F (low) to 57.9 °F (high). Annual precipitation averages 43.4 Inches. Allport is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.6 °F | 32.9 °F | 3.11 in. |
| February | 17.5 °F | 35.9 °F | 2.53 in. |
| March | 24.4 °F | 44.8 °F | 3.42 in. |
| April | 35.1 °F | 58.4 °F | 3.79 in. |
| May | 45.7 °F | 69.0 °F | 3.98 in. |
| June | 53.7 °F | 76.4 °F | 4.36 in. |
| July | 57.8 °F | 80.4 °F | 4.05 in. |
| August | 56.4 °F | 78.9 °F | 3.94 in. |
| September | 49.2 °F | 72.1 °F | 4.14 in. |
| October | 39.0 °F | 60.1 °F | 3.71 in. |
| November | 29.6 °F | 48.3 °F | 3.08 in. |
| December | 22.4 °F | 37.1 °F | 3.3 in. |
| Annual | 37.3 °F | 57.9 °F | 43.41 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| 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 |