Perry, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.4 °C (low) to 17.8 °C (high). Annual precipitation averages 1035.6 Millimeters. Perry 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.3 °C | 2.4 °C | 52.83 mm |
| February | -5.5 °C | 5.2 °C | 57.4 mm |
| March | -0.2 °C | 11.5 °C | 71.63 mm |
| April | 6 °C | 18.2 °C | 108.71 mm |
| May | 12 °C | 23.7 °C | 125.73 mm |
| June | 17.3 °C | 28.7 °C | 119.63 mm |
| July | 19.3 °C | 30.8 °C | 107.7 mm |
| August | 18.2 °C | 30.2 °C | 94.23 mm |
| September | 13.4 °C | 26.3 °C | 95.76 mm |
| October | 7.1 °C | 19.6 °C | 80.01 mm |
| November | 0.8 °C | 11.7 °C | 68.83 mm |
| December | -4.3 °C | 5 °C | 53.09 mm |
| Annual | 6.4 °C | 17.8 °C | 1035.55 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 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |