Craig, Montana has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 1.4 °C (low) to 15.2 °C (high). Annual precipitation averages 368.8 Millimeters. Craig 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 | -7.6 °C | 3.2 °C | 10.41 mm |
| February | -7.1 °C | 4.5 °C | 11.43 mm |
| March | -3.8 °C | 9 °C | 16.26 mm |
| April | 0.2 °C | 13.9 °C | 41.91 mm |
| May | 4.4 °C | 19.1 °C | 63.5 mm |
| June | 8.7 °C | 23.6 °C | 71.88 mm |
| July | 11.6 °C | 30 °C | 28.45 mm |
| August | 10.7 °C | 29.6 °C | 32 mm |
| September | 6.8 °C | 23.4 °C | 36.58 mm |
| October | 2.2 °C | 15.4 °C | 28.45 mm |
| November | -2.4 °C | 7.7 °C | 15.49 mm |
| December | -6.7 °C | 3.1 °C | 12.45 mm |
| Annual | 1.4 °C | 15.2 °C | 368.81 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |