Cameron, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.8 °C (low) to 17.3 °C (high). Annual precipitation averages 1019.3 Millimeters. Cameron is located in USDA Plant Hardiness Zone 6a. 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 | -8.3 °C | 1.9 °C | 27.43 mm |
| February | -6.4 °C | 4.8 °C | 37.34 mm |
| March | -0.3 °C | 11.5 °C | 65.79 mm |
| April | 4.6 °C | 17.7 °C | 97.79 mm |
| May | 11.3 °C | 23 °C | 147.57 mm |
| June | 16.9 °C | 28.1 °C | 134.11 mm |
| July | 19.4 °C | 30.7 °C | 115.57 mm |
| August | 18.3 °C | 29.8 °C | 114.3 mm |
| September | 13.1 °C | 25.8 °C | 104.9 mm |
| October | 6.5 °C | 18.9 °C | 80.52 mm |
| November | 0.2 °C | 11.3 °C | 51.56 mm |
| December | -5.4 °C | 4.3 °C | 42.42 mm |
| Annual | 5.8 °C | 17.3 °C | 1019.3 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |