New Pittsburg, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 40.2 °F (low) to 59.5 °F (high). Annual precipitation averages 40.6 Inches. New Pittsburg 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 | 18.1 °F | 33.5 °F | 2.91 in. |
| February | 19.4 °F | 36.4 °F | 2.21 in. |
| March | 27.4 °F | 46.1 °F | 3.03 in. |
| April | 38.2 °F | 59.8 °F | 3.79 in. |
| May | 48.9 °F | 70.3 °F | 4.21 in. |
| June | 58.1 °F | 79.0 °F | 4.59 in. |
| July | 61.5 °F | 82.4 °F | 4.07 in. |
| August | 59.8 °F | 81.0 °F | 3.64 in. |
| September | 52.6 °F | 75.1 °F | 3.35 in. |
| October | 41.6 °F | 62.6 °F | 3.13 in. |
| November | 32.1 °F | 49.5 °F | 2.9 in. |
| December | 24.1 °F | 38.2 °F | 2.8 in. |
| Annual | 40.2 °F | 59.5 °F | 40.63 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 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |