Dundee, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.2 °F (low) to 60.6 °F (high). Annual precipitation averages 41.5 Inches. Dundee is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.5 °F | 34.8 °F | 2.98 in. |
| February | 20.7 °F | 37.9 °F | 2.31 in. |
| March | 28.7 °F | 47.6 °F | 3.22 in. |
| April | 39.2 °F | 61.2 °F | 3.7 in. |
| May | 49.7 °F | 71.3 °F | 4.03 in. |
| June | 58.8 °F | 79.6 °F | 4.82 in. |
| July | 62.5 °F | 83.0 °F | 4.17 in. |
| August | 60.6 °F | 81.8 °F | 3.88 in. |
| September | 53.5 °F | 75.7 °F | 3.25 in. |
| October | 42.4 °F | 63.5 °F | 3.17 in. |
| November | 32.9 °F | 50.7 °F | 2.97 in. |
| December | 25.3 °F | 39.6 °F | 2.98 in. |
| Annual | 41.2 °F | 60.6 °F | 41.48 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |