New Straitsville, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.2 °C (low) to 17 °C (high). Annual precipitation averages 1075.4 Millimeters. New Straitsville 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 | -6.4 °C | 3.2 °C | 79.25 mm |
| February | -5.6 °C | 5 °C | 68.07 mm |
| March | -1.3 °C | 10.6 °C | 94.23 mm |
| April | 4.3 °C | 17.8 °C | 98.81 mm |
| May | 9.9 °C | 22.6 °C | 108.2 mm |
| June | 14.8 °C | 26.9 °C | 116.84 mm |
| July | 16.8 °C | 28.7 °C | 107.44 mm |
| August | 15.8 °C | 28.2 °C | 89.66 mm |
| September | 11.7 °C | 24.9 °C | 82.55 mm |
| October | 5.4 °C | 18.4 °C | 75.18 mm |
| November | 0.1 °C | 11.7 °C | 75.18 mm |
| December | -3.6 °C | 5.7 °C | 80.01 mm |
| Annual | 5.2 °C | 17 °C | 1075.42 mm |
| 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 : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |