Butterfield, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.7 °C (low) to 19.4 °C (high). Annual precipitation averages 1160 Millimeters. Butterfield is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.3 °C | 6.8 °C | 70.61 mm |
| February | -2.4 °C | 9.2 °C | 56.39 mm |
| March | 2.2 °C | 14.4 °C | 96.77 mm |
| April | 7.1 °C | 19.3 °C | 115.57 mm |
| May | 12.2 °C | 23.4 °C | 141.22 mm |
| June | 17.1 °C | 28.2 °C | 113.79 mm |
| July | 19.3 °C | 30.8 °C | 91.44 mm |
| August | 18.7 °C | 30.9 °C | 83.57 mm |
| September | 14.5 °C | 26.8 °C | 122.68 mm |
| October | 8.3 °C | 20.8 °C | 100.33 mm |
| November | 2.4 °C | 14.1 °C | 90.68 mm |
| December | -2.4 °C | 8.3 °C | 76.96 mm |
| Annual | 7.7 °C | 19.4 °C | 1160.01 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°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 |