Willow Springs, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.6 °F (low) to 67 °F (high). Annual precipitation averages 45.7 Inches. Willow Springs is located in USDA Plant Hardiness Zone 7a. 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 | 23.9 °F | 43.2 °F | 2.63 in. |
| February | 27.3 °F | 48.0 °F | 2.72 in. |
| March | 35.1 °F | 57.5 °F | 4.49 in. |
| April | 45.1 °F | 68.1 °F | 5.19 in. |
| May | 54.2 °F | 75.7 °F | 5.25 in. |
| June | 62.9 °F | 83.4 °F | 3.88 in. |
| July | 66.8 °F | 88.0 °F | 4.17 in. |
| August | 65.2 °F | 87.4 °F | 3.23 in. |
| September | 57.5 °F | 80.5 °F | 3.57 in. |
| October | 45.9 °F | 69.2 °F | 3.59 in. |
| November | 35.9 °F | 56.7 °F | 3.84 in. |
| December | 27.3 °F | 45.9 °F | 3.11 in. |
| Annual | 45.6 °F | 67 °F | 45.67 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |