Fremont Hills, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.2 °C (low) to 19.4 °C (high). Annual precipitation averages 1195.6 Millimeters. Fremont Hills 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 | -5 °C | 6.2 °C | 68.83 mm |
| February | -3.2 °C | 8.9 °C | 63.75 mm |
| March | 1.3 °C | 14.1 °C | 109.22 mm |
| April | 6.6 °C | 19.6 °C | 119.63 mm |
| May | 12.2 °C | 23.9 °C | 141.48 mm |
| June | 17.1 °C | 28.7 °C | 117.35 mm |
| July | 19.4 °C | 31.1 °C | 107.95 mm |
| August | 18.4 °C | 31 °C | 82.55 mm |
| September | 14.1 °C | 27.1 °C | 119.89 mm |
| October | 7.4 °C | 20.7 °C | 94.23 mm |
| November | 1.4 °C | 13.7 °C | 97.54 mm |
| December | -3.1 °C | 7.9 °C | 73.15 mm |
| Annual | 7.2 °C | 19.4 °C | 1195.57 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |