Montier, 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 20 °C (high). Annual precipitation averages 1246.4 Millimeters. Montier is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.7 °C | 6.6 °C | 77.47 mm |
| February | -2.9 °C | 9.6 °C | 81.53 mm |
| March | 1.3 °C | 14.9 °C | 113.79 mm |
| April | 6.8 °C | 20.7 °C | 136.14 mm |
| May | 12.1 °C | 24.8 °C | 145.54 mm |
| June | 16.7 °C | 29.1 °C | 101.09 mm |
| July | 18.9 °C | 31.5 °C | 103.89 mm |
| August | 18 °C | 31.1 °C | 92.71 mm |
| September | 13.5 °C | 27.4 °C | 102.87 mm |
| October | 6.9 °C | 21.5 °C | 94.49 mm |
| November | 1.6 °C | 14.2 °C | 115.57 mm |
| December | -3.1 °C | 8.2 °C | 81.28 mm |
| Annual | 7.1 °C | 20 °C | 1246.37 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°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 |