North Vandergrift, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.1 °F (low) to 61.9 °F (high). Annual precipitation averages 43.5 Inches. North Vandergrift is located in USDA Plant Hardiness Zone 6b. 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 | 20.3 °F | 37.1 °F | 3.22 in. |
| February | 21.3 °F | 40.2 °F | 2.55 in. |
| March | 28.2 °F | 49.1 °F | 3.21 in. |
| April | 38.4 °F | 62.8 °F | 3.64 in. |
| May | 49.3 °F | 72.8 °F | 4.07 in. |
| June | 58.2 °F | 80.3 °F | 4.51 in. |
| July | 62.1 °F | 84.1 °F | 4.67 in. |
| August | 60.8 °F | 82.9 °F | 4.15 in. |
| September | 53.8 °F | 76.5 °F | 3.99 in. |
| October | 42.4 °F | 64.1 °F | 3.15 in. |
| November | 32.9 °F | 51.9 °F | 3.2 in. |
| December | 25.9 °F | 41.3 °F | 3.15 in. |
| Annual | 41.1 °F | 61.9 °F | 43.51 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |