Broadview, Montana has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.2 °C (low) to 15.3 °C (high). Annual precipitation averages 348.5 Millimeters. Broadview 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 | -9.6 °C | 2.9 °C | 8.64 mm |
| February | -9.1 °C | 4.4 °C | 9.14 mm |
| March | -5.2 °C | 9.4 °C | 17.53 mm |
| April | -0.9 °C | 13.9 °C | 34.29 mm |
| May | 4 °C | 19.1 °C | 69.09 mm |
| June | 8.5 °C | 24.1 °C | 60.71 mm |
| July | 11.9 °C | 29.8 °C | 45.97 mm |
| August | 10.8 °C | 29.6 °C | 23.11 mm |
| September | 5.9 °C | 23.5 °C | 30.99 mm |
| October | 0.2 °C | 15.6 °C | 30.23 mm |
| November | -5.3 °C | 8.1 °C | 10.41 mm |
| December | -9.2 °C | 3 °C | 8.38 mm |
| Annual | 0.2 °C | 15.3 °C | 348.49 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 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 | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |