Dublin, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.3 °C (low) to 17 °C (high). Annual precipitation averages 1032 Millimeters. Dublin 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6 °C | 2.3 °C | 75.44 mm |
| February | -5 °C | 4.2 °C | 60.45 mm |
| March | -0.4 °C | 10.2 °C | 85.09 mm |
| April | 5.3 °C | 17.6 °C | 98.3 mm |
| May | 11.4 °C | 23.3 °C | 106.17 mm |
| June | 16.4 °C | 27.8 °C | 113.28 mm |
| July | 18.2 °C | 29.4 °C | 102.36 mm |
| August | 17.2 °C | 28.8 °C | 84.33 mm |
| September | 13.2 °C | 25.7 °C | 81.53 mm |
| October | 6.8 °C | 18.7 °C | 71.63 mm |
| November | 1.2 °C | 11.2 °C | 75.44 mm |
| December | -2.9 °C | 4.9 °C | 77.98 mm |
| Annual | 6.3 °C | 17 °C | 1032 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |