Houston, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.8 °C (low) to 13.7 °C (high). Annual precipitation averages 923.3 Millimeters. Houston 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -13 °C | -3.4 °C | 28.19 mm |
| February | -11.2 °C | -0.8 °C | 26.92 mm |
| March | -4.4 °C | 6.1 °C | 47.5 mm |
| April | 2.3 °C | 14.1 °C | 99.57 mm |
| May | 8.9 °C | 20.9 °C | 119.63 mm |
| June | 14.7 °C | 26.3 °C | 139.95 mm |
| July | 16.9 °C | 28.3 °C | 104.9 mm |
| August | 15.7 °C | 27.2 °C | 111.25 mm |
| September | 11.1 °C | 23.2 °C | 97.54 mm |
| October | 4.2 °C | 15.6 °C | 69.6 mm |
| November | -2.3 °C | 6.8 °C | 44.96 mm |
| December | -8.9 °C | -0.4 °C | 33.27 mm |
| Annual | 2.8 °C | 13.7 °C | 923.28 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |