Hungry Horse, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.8 °F (low) to 54.8 °F (high). Annual precipitation averages 26.9 Inches. Hungry Horse is located in USDA Plant Hardiness Zone 5b. 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 | 17.4 °F | 31.2 °F | 2.42 in. |
| February | 18.1 °F | 35.6 °F | 1.82 in. |
| March | 24.1 °F | 44.3 °F | 1.92 in. |
| April | 30.4 °F | 53.8 °F | 2.03 in. |
| May | 37.7 °F | 64.3 °F | 2.52 in. |
| June | 44.1 °F | 70.7 °F | 3.52 in. |
| July | 48.3 °F | 81.7 °F | 1.37 in. |
| August | 46.6 °F | 81.4 °F | 1.15 in. |
| September | 39.5 °F | 69.8 °F | 1.83 in. |
| October | 31.1 °F | 54.0 °F | 2.72 in. |
| November | 24.9 °F | 39.5 °F | 2.76 in. |
| December | 18.9 °F | 31.0 °F | 2.79 in. |
| Annual | 31.8 °F | 54.8 °F | 26.85 in. |
| 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |