Horine, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.9 °F (low) to 66.8 °F (high). Annual precipitation averages 43.6 Inches. Horine is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.3 °F | 40.5 °F | 2.75 in. |
| February | 26.9 °F | 46.0 °F | 2.48 in. |
| March | 35.5 °F | 56.0 °F | 3.92 in. |
| April | 46.2 °F | 67.8 °F | 4.99 in. |
| May | 56.7 °F | 76.9 °F | 4.82 in. |
| June | 65.5 °F | 85.6 °F | 4.28 in. |
| July | 69.5 °F | 89.1 °F | 4.03 in. |
| August | 67.4 °F | 87.7 °F | 3.56 in. |
| September | 59.4 °F | 81.2 °F | 3.43 in. |
| October | 47.8 °F | 69.5 °F | 3.01 in. |
| November | 36.5 °F | 56.0 °F | 3.42 in. |
| December | 27.7 °F | 44.8 °F | 2.86 in. |
| Annual | 46.9 °F | 66.8 °F | 43.55 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |