Wallsburg, Utah has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.2 °C (low) to 16.2 °C (high). Annual precipitation averages 468.7 Millimeters. Wallsburg is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.3 °C | 2.3 °C | 55.12 mm |
| February | -8.3 °C | 4.8 °C | 49.28 mm |
| March | -3.9 °C | 10.3 °C | 42.42 mm |
| April | -1 °C | 14.6 °C | 42.42 mm |
| May | 2.9 °C | 19.9 °C | 46.23 mm |
| June | 6.5 °C | 26.3 °C | 25.4 mm |
| July | 10.7 °C | 31.3 °C | 15.75 mm |
| August | 10.2 °C | 30.3 °C | 22.61 mm |
| September | 5.3 °C | 25 °C | 34.04 mm |
| October | -0.3 °C | 17.3 °C | 42.42 mm |
| November | -5.1 °C | 9.2 °C | 40.39 mm |
| December | -9.5 °C | 2.7 °C | 52.58 mm |
| Annual | -0.2 °C | 16.2 °C | 468.66 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |