Hermitage, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7 °C (low) to 19.6 °C (high). Annual precipitation averages 1123.7 Millimeters. Hermitage 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 | -6.4 °C | 5.7 °C | 48.51 mm |
| February | -4.3 °C | 8.6 °C | 52.58 mm |
| March | 0.9 °C | 14.2 °C | 78.23 mm |
| April | 6.3 °C | 20.3 °C | 126.24 mm |
| May | 12.1 °C | 24.4 °C | 142.75 mm |
| June | 17.4 °C | 29 °C | 111.51 mm |
| July | 19.7 °C | 31.6 °C | 113.28 mm |
| August | 18.6 °C | 31.4 °C | 104.14 mm |
| September | 14.1 °C | 27.3 °C | 110.49 mm |
| October | 7.1 °C | 21.2 °C | 91.19 mm |
| November | 1.6 °C | 13.9 °C | 80.77 mm |
| December | -3.4 °C | 7.8 °C | 64.01 mm |
| Annual | 7 °C | 19.6 °C | 1123.7 mm |
| 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 : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |