Urbana, 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 16.2 °C (high). Annual precipitation averages 1086.9 Millimeters. Urbana is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.1 °C | 1.5 °C | 76.71 mm |
| February | -5.8 °C | 3.6 °C | 58.93 mm |
| March | -1.4 °C | 9.2 °C | 79.76 mm |
| April | 4.3 °C | 16.4 °C | 107.95 mm |
| May | 10.5 °C | 22.2 °C | 124.21 mm |
| June | 15.6 °C | 27.2 °C | 112.27 mm |
| July | 17.3 °C | 28.8 °C | 124.71 mm |
| August | 16.1 °C | 28.2 °C | 88.39 mm |
| September | 12.2 °C | 24.9 °C | 83.06 mm |
| October | 5.9 °C | 18.1 °C | 72.14 mm |
| November | 0.3 °C | 10.3 °C | 80.01 mm |
| December | -3.9 °C | 4.1 °C | 78.74 mm |
| Annual | 5.3 °C | 16.2 °C | 1086.88 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |