Park City, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.2 °F (low) to 61 °F (high). Annual precipitation averages 12.7 Inches. Park City 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 | 15.0 °F | 37.6 °F | 0.46 in. |
| February | 16.8 °F | 41.1 °F | 0.46 in. |
| March | 24.2 °F | 51.2 °F | 0.72 in. |
| April | 31.5 °F | 59.0 °F | 1.73 in. |
| May | 40.7 °F | 68.2 °F | 2.67 in. |
| June | 49.0 °F | 77.8 °F | 1.8 in. |
| July | 54.8 °F | 87.9 °F | 1.08 in. |
| August | 52.4 °F | 86.8 °F | 0.58 in. |
| September | 43.5 °F | 76.1 °F | 0.97 in. |
| October | 32.7 °F | 61.2 °F | 1.17 in. |
| November | 23.5 °F | 47.7 °F | 0.53 in. |
| December | 14.6 °F | 37.8 °F | 0.51 in. |
| Annual | 33.2 °F | 61 °F | 12.68 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |