Lincoln, Montana has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -2.8 °C (low) to 12.7 °C (high). Annual precipitation averages 471.2 Millimeters. 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 | -11 °C | 0.2 °C | 38.86 mm |
| February | -10.4 °C | 2.3 °C | 37.34 mm |
| March | -6.8 °C | 7.1 °C | 29.97 mm |
| April | -3.1 °C | 11.6 °C | 35.31 mm |
| May | 0.8 °C | 16.8 °C | 53.34 mm |
| June | 4.3 °C | 21.1 °C | 61.47 mm |
| July | 6.6 °C | 27.6 °C | 25.65 mm |
| August | 5.4 °C | 27.3 °C | 30.99 mm |
| September | 1.7 °C | 21.2 °C | 31.24 mm |
| October | -2.6 °C | 12.4 °C | 40.89 mm |
| November | -7.1 °C | 4.6 °C | 40.39 mm |
| December | -10.9 °C | -0.2 °C | 45.72 mm |
| Annual | -2.8 °C | 12.7 °C | 471.17 mm |
| 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 : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |