Edgar Springs, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.2 °C (low) to 19.1 °C (high). Annual precipitation averages 1178.6 Millimeters. Edgar Springs 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 | -5.2 °C | 5.4 °C | 68.07 mm |
| February | -3.3 °C | 8.3 °C | 69.34 mm |
| March | 1.2 °C | 13.7 °C | 103.89 mm |
| April | 6.8 °C | 19.7 °C | 124.21 mm |
| May | 12.3 °C | 24.2 °C | 140.72 mm |
| June | 17.3 °C | 28.4 °C | 111.76 mm |
| July | 19.2 °C | 30.8 °C | 103.38 mm |
| August | 18.3 °C | 30.7 °C | 98.81 mm |
| September | 13.7 °C | 26.6 °C | 102.87 mm |
| October | 7.3 °C | 20.6 °C | 83.06 mm |
| November | 1.8 °C | 13.3 °C | 100.58 mm |
| December | -3.2 °C | 7.3 °C | 71.88 mm |
| Annual | 7.2 °C | 19.1 °C | 1178.57 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |