La Motte, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.3 °C (low) to 13.7 °C (high). Annual precipitation averages 988.3 Millimeters. La Motte is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.8 °C | -2.9 °C | 33.53 mm |
| February | -9.8 °C | -0.6 °C | 39.37 mm |
| March | -3.6 °C | 6.6 °C | 54.86 mm |
| April | 2.7 °C | 14.2 °C | 97.54 mm |
| May | 9.3 °C | 20.6 °C | 115.06 mm |
| June | 14.9 °C | 25.9 °C | 147.32 mm |
| July | 16.8 °C | 27.6 °C | 119.13 mm |
| August | 15.7 °C | 26.7 °C | 106.17 mm |
| September | 10.9 °C | 23 °C | 97.28 mm |
| October | 4.3 °C | 15.8 °C | 75.69 mm |
| November | -2.2 °C | 7.3 °C | 57.66 mm |
| December | -8.2 °C | 0.2 °C | 44.7 mm |
| Annual | 3.3 °C | 13.7 °C | 988.31 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |