Waldo, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.5 °F (low) to 60.6 °F (high). Annual precipitation averages 40.3 Inches. Waldo 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.1 °F | 34.1 °F | 2.86 in. |
| February | 20.7 °F | 37.1 °F | 2.2 in. |
| March | 29.2 °F | 47.6 °F | 2.95 in. |
| April | 39.7 °F | 61.1 °F | 3.92 in. |
| May | 50.7 °F | 71.9 °F | 4.17 in. |
| June | 60.1 °F | 80.2 °F | 4.69 in. |
| July | 63.3 °F | 83.3 °F | 4.2 in. |
| August | 61.2 °F | 81.9 °F | 3.51 in. |
| September | 53.8 °F | 76.4 °F | 3.23 in. |
| October | 42.5 °F | 63.9 °F | 2.78 in. |
| November | 32.8 °F | 50.6 °F | 2.92 in. |
| December | 24.9 °F | 39.1 °F | 2.83 in. |
| Annual | 41.5 °F | 60.6 °F | 40.26 in. |
| 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 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 |