Huntley, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.8 °C (low) to 16.4 °C (high). Annual precipitation averages 368.8 Millimeters. Huntley is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.6 °C | 2.7 °C | 11.18 mm |
| February | -9.2 °C | 4.9 °C | 13.21 mm |
| March | -4.7 °C | 10.8 °C | 21.08 mm |
| April | 0.3 °C | 15.5 °C | 43.18 mm |
| May | 5.5 °C | 20.7 °C | 64.26 mm |
| June | 10.2 °C | 26 °C | 57.91 mm |
| July | 13.3 °C | 31.5 °C | 37.08 mm |
| August | 12.1 °C | 30.9 °C | 23.11 mm |
| September | 6.9 °C | 25 °C | 34.8 mm |
| October | 0.4 °C | 16.6 °C | 35.81 mm |
| November | -5.3 °C | 9.1 °C | 14.48 mm |
| December | -9.8 °C | 3.3 °C | 12.7 mm |
| Annual | 0.8 °C | 16.4 °C | 368.8 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |