Boyd, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 1.1 °C (low) to 12.8 °C (high). Annual precipitation averages 673.1 Millimeters. Boyd is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.5 °C | -5.2 °C | 17.53 mm |
| February | -13.4 °C | -2.6 °C | 18.03 mm |
| March | -6.4 °C | 4.1 °C | 34.54 mm |
| April | 0.7 °C | 13 °C | 61.98 mm |
| May | 7.9 °C | 20.5 °C | 83.06 mm |
| June | 14.1 °C | 26 °C | 102.87 mm |
| July | 16.1 °C | 28.2 °C | 87.12 mm |
| August | 14.4 °C | 26.9 °C | 89.15 mm |
| September | 9.7 °C | 23.3 °C | 69.6 mm |
| October | 2.4 °C | 15.3 °C | 58.17 mm |
| November | -4.8 °C | 5.7 °C | 30.48 mm |
| December | -11.6 °C | -2.2 °C | 20.57 mm |
| Annual | 1.1 °C | 12.8 °C | 673.1 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |