Azure, Montana has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -1.3 °C (low) to 13 °C (high). Annual precipitation averages 396.7 Millimeters. Azure is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12 °C | 0.2 °C | 15.49 mm |
| February | -11.2 °C | 1.4 °C | 12.19 mm |
| March | -6.8 °C | 6.4 °C | 13.72 mm |
| April | -1.9 °C | 12.1 °C | 32.26 mm |
| May | 2.8 °C | 17.6 °C | 63.25 mm |
| June | 7.1 °C | 22.1 °C | 92.96 mm |
| July | 10.2 °C | 28.2 °C | 38.1 mm |
| August | 9 °C | 27.3 °C | 30.48 mm |
| September | 4.8 °C | 21.2 °C | 38.61 mm |
| October | -1 °C | 13.2 °C | 26.92 mm |
| November | -6.2 °C | 5.8 °C | 21.08 mm |
| December | -10.6 °C | 0.8 °C | 11.68 mm |
| Annual | -1.3 °C | 13 °C | 396.74 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |