New Columbia, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.9 °F (low) to 61.3 °F (high). Annual precipitation averages 45.1 Inches. New Columbia is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.7 °F | 35.7 °F | 3.28 in. |
| February | 20.8 °F | 38.7 °F | 2.58 in. |
| March | 28.2 °F | 48.2 °F | 3.63 in. |
| April | 38.3 °F | 61.8 °F | 4.07 in. |
| May | 48.9 °F | 72.1 °F | 4.09 in. |
| June | 58.3 °F | 80.1 °F | 3.91 in. |
| July | 62.3 °F | 84.7 °F | 4.59 in. |
| August | 60.8 °F | 82.7 °F | 3.81 in. |
| September | 53.4 °F | 75.9 °F | 4.23 in. |
| October | 42.2 °F | 63.4 °F | 3.71 in. |
| November | 32.4 °F | 51.4 °F | 3.42 in. |
| December | 25.2 °F | 40.3 °F | 3.82 in. |
| Annual | 40.9 °F | 61.3 °F | 45.14 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |