North Star, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.4 °F (low) to 60.6 °F (high). Annual precipitation averages 40.5 Inches. North Star is located in USDA Plant Hardiness Zone 6a. 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 | 18.5 °F | 33.7 °F | 2.78 in. |
| February | 20.8 °F | 37.5 °F | 2.27 in. |
| March | 29.2 °F | 48.0 °F | 3.1 in. |
| April | 39.6 °F | 61.1 °F | 4.0 in. |
| May | 51.0 °F | 71.7 °F | 4.3 in. |
| June | 60.4 °F | 80.1 °F | 4.49 in. |
| July | 63.0 °F | 83.2 °F | 4.31 in. |
| August | 60.9 °F | 82.0 °F | 3.46 in. |
| September | 53.5 °F | 76.9 °F | 3.06 in. |
| October | 42.6 °F | 64.4 °F | 2.83 in. |
| November | 32.5 °F | 50.2 °F | 3.07 in. |
| December | 24.4 °F | 38.6 °F | 2.79 in. |
| Annual | 41.4 °F | 60.6 °F | 40.46 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |