Conrad, Montana has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -0.9 °C (low) to 13.6 °C (high). Annual precipitation averages 319.3 Millimeters. Conrad is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.7 °C | 0.9 °C | 9.91 mm |
| February | -10.8 °C | 2.3 °C | 11.68 mm |
| March | -6.6 °C | 7.1 °C | 13.97 mm |
| April | -1.6 °C | 13 °C | 36.58 mm |
| May | 3.6 °C | 18.2 °C | 49.53 mm |
| June | 7.8 °C | 22.4 °C | 67.31 mm |
| July | 10.8 °C | 27.8 °C | 28.45 mm |
| August | 9.9 °C | 27.6 °C | 25.4 mm |
| September | 5.4 °C | 21.7 °C | 28.7 mm |
| October | -0.6 °C | 14 °C | 19.56 mm |
| November | -6.2 °C | 6.4 °C | 16.76 mm |
| December | -10.7 °C | 1.3 °C | 11.43 mm |
| Annual | -0.9 °C | 13.6 °C | 319.28 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| 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 | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |