Oregon, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.6 °C (low) to 15.3 °C (high). Annual precipitation averages 914.2 Millimeters. Oregon is located in USDA Plant Hardiness Zone 6b. 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 | 0.6 °C | 63.5 mm |
| February | -6.4 °C | 2.2 °C | 60.71 mm |
| March | -2.1 °C | 7.4 °C | 68.33 mm |
| April | 4.2 °C | 14.5 °C | 96.01 mm |
| May | 10.7 °C | 21.1 °C | 85.6 mm |
| June | 16.2 °C | 26.6 °C | 91.69 mm |
| July | 18.3 °C | 28.9 °C | 87.38 mm |
| August | 17.1 °C | 27.7 °C | 80.26 mm |
| September | 13.1 °C | 24.2 °C | 71.63 mm |
| October | 6.5 °C | 17.2 °C | 74.93 mm |
| November | 0.9 °C | 9.7 °C | 72.9 mm |
| December | -3.9 °C | 3.3 °C | 61.21 mm |
| Annual | 5.6 °C | 15.3 °C | 914.15 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 6b : -20.6°C to -17.8°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 |