Peculiar, 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 18.4 °C (high). Annual precipitation averages 1096.3 Millimeters. Peculiar is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.5 °C | 4.1 °C | 34.8 mm |
| February | -4.5 °C | 6.5 °C | 46.74 mm |
| March | 0.8 °C | 12.6 °C | 69.85 mm |
| April | 6.6 °C | 18.4 °C | 109.98 mm |
| May | 12.7 °C | 23.6 °C | 147.57 mm |
| June | 18 °C | 28.8 °C | 147.07 mm |
| July | 20.3 °C | 31.4 °C | 118.11 mm |
| August | 19.2 °C | 30.7 °C | 110.49 mm |
| September | 14.5 °C | 26.6 °C | 107.44 mm |
| October | 7.6 °C | 19.8 °C | 94.49 mm |
| November | 1.4 °C | 12.6 °C | 62.23 mm |
| December | -4.1 °C | 6.1 °C | 47.5 mm |
| Annual | 7.2 °C | 18.4 °C | 1096.27 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 |