Coffee Creek, Montana has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 31 °F (low) to 57.6 °F (high). Annual precipitation averages 15.6 Inches. Coffee Creek is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.5 °F | 35.8 °F | 0.45 in. |
| February | 14.4 °F | 37.5 °F | 0.46 in. |
| March | 21.4 °F | 46.2 °F | 0.68 in. |
| April | 29.6 °F | 55.3 °F | 1.6 in. |
| May | 38.4 °F | 64.5 °F | 2.65 in. |
| June | 46.1 °F | 72.8 °F | 3.02 in. |
| July | 51.6 °F | 83.2 °F | 1.61 in. |
| August | 50.2 °F | 83.0 °F | 1.43 in. |
| September | 41.6 °F | 72.4 °F | 1.38 in. |
| October | 31.3 °F | 58.5 °F | 1.15 in. |
| November | 21.3 °F | 45.0 °F | 0.63 in. |
| December | 13.8 °F | 36.4 °F | 0.5 in. |
| Annual | 31 °F | 57.6 °F | 15.56 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |