Cleveland, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.7 °C (low) to 15.1 °C (high). Annual precipitation averages 1039.9 Millimeters. Cleveland is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.6 °C | 1.7 °C | 74.17 mm |
| February | -5.2 °C | 2.7 °C | 56.13 mm |
| March | -1.6 °C | 7.1 °C | 80.77 mm |
| April | 4.7 °C | 14.3 °C | 94.74 mm |
| May | 10.9 °C | 20.3 °C | 100.08 mm |
| June | 16.4 °C | 25.3 °C | 97.79 mm |
| July | 18.9 °C | 27.2 °C | 97.03 mm |
| August | 18.1 °C | 26.7 °C | 96.01 mm |
| September | 14.4 °C | 23.5 °C | 95.76 mm |
| October | 8.6 °C | 17.2 °C | 92.71 mm |
| November | 2.8 °C | 10.3 °C | 78.74 mm |
| December | -2.2 °C | 4.4 °C | 75.95 mm |
| Annual | 6.7 °C | 15.1 °C | 1039.88 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |