Republic, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.4 °F (low) to 66.9 °F (high). Annual precipitation averages 46.3 Inches. Republic is located in USDA Plant Hardiness Zone 6b. 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 | 23.1 °F | 43.1 °F | 2.57 in. |
| February | 26.4 °F | 47.9 °F | 2.41 in. |
| March | 34.7 °F | 57.3 °F | 3.96 in. |
| April | 44.1 °F | 67.1 °F | 4.56 in. |
| May | 54.4 °F | 74.9 °F | 5.86 in. |
| June | 63.3 °F | 83.5 °F | 4.51 in. |
| July | 67.4 °F | 88.2 °F | 4.13 in. |
| August | 65.6 °F | 88.0 °F | 3.48 in. |
| September | 57.7 °F | 80.7 °F | 4.6 in. |
| October | 46.0 °F | 69.3 °F | 3.56 in. |
| November | 35.1 °F | 56.7 °F | 3.78 in. |
| December | 26.7 °F | 46.4 °F | 2.88 in. |
| Annual | 45.4 °F | 66.9 °F | 46.3 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |