Ridgely, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.8 °F (low) to 64.4 °F (high). Annual precipitation averages 39.9 Inches. Ridgely is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.4 °F | 37.4 °F | 1.17 in. |
| February | 21.6 °F | 42.7 °F | 1.61 in. |
| March | 31.6 °F | 54.5 °F | 2.27 in. |
| April | 41.7 °F | 64.8 °F | 3.87 in. |
| May | 53.1 °F | 74.3 °F | 5.38 in. |
| June | 62.8 °F | 83.6 °F | 5.09 in. |
| July | 66.9 °F | 87.9 °F | 5.36 in. |
| August | 64.7 °F | 86.6 °F | 4.32 in. |
| September | 55.7 °F | 79.0 °F | 3.82 in. |
| October | 43.5 °F | 67.3 °F | 3.25 in. |
| November | 31.9 °F | 53.4 °F | 2.07 in. |
| December | 22.2 °F | 41.5 °F | 1.72 in. |
| Annual | 42.8 °F | 64.4 °F | 39.93 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |