Lincoln, Montana has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 27 °F (low) to 54.8 °F (high). Annual precipitation averages 18.6 Inches. Lincoln 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.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.2 °F | 32.3 °F | 1.53 in. |
| February | 13.2 °F | 36.1 °F | 1.47 in. |
| March | 19.7 °F | 44.8 °F | 1.18 in. |
| April | 26.4 °F | 52.8 °F | 1.39 in. |
| May | 33.5 °F | 62.3 °F | 2.1 in. |
| June | 39.8 °F | 70.0 °F | 2.42 in. |
| July | 43.8 °F | 81.7 °F | 1.01 in. |
| August | 41.7 °F | 81.1 °F | 1.22 in. |
| September | 35.1 °F | 70.1 °F | 1.23 in. |
| October | 27.3 °F | 54.3 °F | 1.61 in. |
| November | 19.2 °F | 40.3 °F | 1.59 in. |
| December | 12.3 °F | 31.6 °F | 1.8 in. |
| Annual | 27 °F | 54.8 °F | 18.55 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |