Fletcher, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.3 °C (low) to 16.1 °C (high). Annual precipitation averages 1055.1 Millimeters. Fletcher 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 | -7.2 °C | 1.4 °C | 75.44 mm |
| February | -6.1 °C | 3.4 °C | 59.44 mm |
| March | -1.5 °C | 9.2 °C | 81.03 mm |
| April | 4.3 °C | 16.4 °C | 105.92 mm |
| May | 10.6 °C | 22.1 °C | 115.32 mm |
| June | 15.7 °C | 26.8 °C | 115.06 mm |
| July | 17.3 °C | 28.6 °C | 113.28 mm |
| August | 16.2 °C | 27.9 °C | 81.28 mm |
| September | 12.2 °C | 24.9 °C | 79.25 mm |
| October | 5.9 °C | 18 °C | 72.14 mm |
| November | 0.3 °C | 10.3 °C | 78.99 mm |
| December | -4.2 °C | 4 °C | 77.98 mm |
| Annual | 5.3 °C | 16.1 °C | 1055.13 mm |
| 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 : -23.3°C to -20.6°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 |