McFall, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.5 °F (low) to 62.4 °F (high). Annual precipitation averages 39.1 Inches. McFall 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.5 °F | 34.2 °F | 1.02 in. |
| February | 19.4 °F | 39.3 °F | 1.44 in. |
| March | 29.9 °F | 51.7 °F | 2.3 in. |
| April | 40.2 °F | 63.0 °F | 3.78 in. |
| May | 52.0 °F | 73.0 °F | 5.66 in. |
| June | 61.8 °F | 82.4 °F | 5.3 in. |
| July | 66.0 °F | 86.7 °F | 4.66 in. |
| August | 63.6 °F | 85.2 °F | 4.23 in. |
| September | 54.8 °F | 77.9 °F | 4.01 in. |
| October | 42.6 °F | 65.6 °F | 3.17 in. |
| November | 31.1 °F | 51.3 °F | 1.96 in. |
| December | 20.9 °F | 38.7 °F | 1.57 in. |
| Annual | 41.5 °F | 62.4 °F | 39.1 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 |