Grovespring, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.1 °F (low) to 66.3 °F (high). Annual precipitation averages 45.4 Inches. Grovespring is located in USDA Plant Hardiness Zone 6b. 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 | 22.6 °F | 42.0 °F | 2.72 in. |
| February | 26.5 °F | 47.1 °F | 2.62 in. |
| March | 34.4 °F | 56.5 °F | 3.82 in. |
| April | 44.5 °F | 67.2 °F | 4.78 in. |
| May | 53.8 °F | 74.9 °F | 5.63 in. |
| June | 62.7 °F | 82.9 °F | 4.34 in. |
| July | 66.7 °F | 87.7 °F | 4.21 in. |
| August | 65.1 °F | 87.1 °F | 3.56 in. |
| September | 56.9 °F | 79.8 °F | 4.01 in. |
| October | 45.5 °F | 68.7 °F | 3.18 in. |
| November | 35.5 °F | 56.1 °F | 3.72 in. |
| December | 27.0 °F | 45.3 °F | 2.83 in. |
| Annual | 45.1 °F | 66.3 °F | 45.42 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |