Bayfield, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from -0.6 °C (low) to 17 °C (high). Annual precipitation averages 387.4 Millimeters. Bayfield 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 | -11.6 °C | 4.3 °C | 37.85 mm |
| February | -9.1 °C | 6.7 °C | 33.02 mm |
| March | -5.1 °C | 11.7 °C | 25.15 mm |
| April | -1.9 °C | 16 °C | 23.37 mm |
| May | 2.4 °C | 21.2 °C | 21.59 mm |
| June | 6.5 °C | 27.6 °C | 10.67 mm |
| July | 11 °C | 30 °C | 35.05 mm |
| August | 10.3 °C | 28.6 °C | 44.45 mm |
| September | 6 °C | 24.7 °C | 48.51 mm |
| October | -0.1 °C | 18.1 °C | 44.7 mm |
| November | -5.6 °C | 10.7 °C | 29.72 mm |
| December | -10.4 °C | 4.7 °C | 33.27 mm |
| Annual | -0.6 °C | 17 °C | 387.35 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |