Pilot Knob, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.1 °C (low) to 19.4 °C (high). Annual precipitation averages 1197.4 Millimeters. Pilot Knob 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5 °C | 5.9 °C | 66.55 mm |
| February | -3.2 °C | 8.9 °C | 68.83 mm |
| March | 1.2 °C | 14.3 °C | 99.57 mm |
| April | 6.7 °C | 20.6 °C | 147.83 mm |
| May | 12.2 °C | 24.4 °C | 143.76 mm |
| June | 16.7 °C | 28.7 °C | 104.14 mm |
| July | 19 °C | 30.8 °C | 95.25 mm |
| August | 18 °C | 30.5 °C | 97.79 mm |
| September | 13.7 °C | 26.9 °C | 91.44 mm |
| October | 7.3 °C | 21.1 °C | 84.84 mm |
| November | 1.5 °C | 13.6 °C | 118.62 mm |
| December | -2.8 °C | 7.6 °C | 78.74 mm |
| Annual | 7.1 °C | 19.4 °C | 1197.36 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |