Montezuma, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.9 °F (low) to 60.7 °F (high). Annual precipitation averages 39.9 Inches. Montezuma is located in USDA Plant Hardiness Zone 6a. 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 | 19.1 °F | 33.4 °F | 2.72 in. |
| February | 21.2 °F | 37.1 °F | 2.21 in. |
| March | 29.4 °F | 47.8 °F | 2.9 in. |
| April | 39.7 °F | 61.4 °F | 3.86 in. |
| May | 51.1 °F | 72.1 °F | 4.22 in. |
| June | 60.7 °F | 80.6 °F | 4.47 in. |
| July | 63.6 °F | 83.8 °F | 4.54 in. |
| August | 61.5 °F | 82.1 °F | 3.59 in. |
| September | 54.3 °F | 77.0 °F | 2.98 in. |
| October | 43.6 °F | 64.5 °F | 2.81 in. |
| November | 33.2 °F | 50.0 °F | 3.0 in. |
| December | 24.9 °F | 38.3 °F | 2.62 in. |
| Annual | 41.9 °F | 60.7 °F | 39.92 in. |
| 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 6a : -10°F to -5°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 |