Wisdom, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -5.8 °C (low) to 11 °C (high). Annual precipitation averages 311.9 Millimeters. Wisdom is located in USDA Plant Hardiness Zone 3a. The growing season typically runs from the last frost around Jun. 11 - Jun. 20 through the first frost around July 11 - July 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.9 °C | -1.9 °C | 17.53 mm |
| February | -14.8 °C | -0.3 °C | 16.51 mm |
| March | -9.7 °C | 4.7 °C | 17.53 mm |
| April | -5.6 °C | 9.7 °C | 27.43 mm |
| May | -1.4 °C | 15.2 °C | 40.39 mm |
| June | 2.3 °C | 20.1 °C | 50.8 mm |
| July | 4.1 °C | 25.8 °C | 26.92 mm |
| August | 2.3 °C | 25.7 °C | 22.61 mm |
| September | -1.2 °C | 20.2 °C | 27.94 mm |
| October | -5.2 °C | 12 °C | 24.64 mm |
| November | -10.3 °C | 3.2 °C | 20.07 mm |
| December | -15.4 °C | -2.6 °C | 19.56 mm |
| Annual | -5.8 °C | 11 °C | 311.93 mm |
| Average First Frost Date | July 11 - July 20 |
| Average Last Frost Date | Jun. 11 - Jun. 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3a : -40°C to -37.2°C |
| Plant Hardiness Zone - 2012 | Zone 3a : -40°C to -37.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |