Dixon, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.4 °C (low) to 15.1 °C (high). Annual precipitation averages 329.5 Millimeters. Dixon is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.1 °C | 1.9 °C | 22.86 mm |
| February | -4.7 °C | 4.3 °C | 21.34 mm |
| March | -1.8 °C | 9.9 °C | 20.07 mm |
| April | 1.3 °C | 14.7 °C | 34.04 mm |
| May | 5.3 °C | 20.1 °C | 37.08 mm |
| June | 8.9 °C | 23.9 °C | 52.83 mm |
| July | 11.9 °C | 30.2 °C | 17.78 mm |
| August | 11.2 °C | 30.1 °C | 15.24 mm |
| September | 7.1 °C | 23.8 °C | 26.16 mm |
| October | 2 °C | 14.9 °C | 27.94 mm |
| November | -2.1 °C | 6.2 °C | 30.23 mm |
| December | -5 °C | 1.7 °C | 23.88 mm |
| Annual | 2.4 °C | 15.1 °C | 329.45 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |