Garfield, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.5 °C (low) to 20 °C (high). Annual precipitation averages 665.5 Millimeters. Garfield is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.2 °C | 6.3 °C | 18.29 mm |
| February | -4.7 °C | 8.7 °C | 21.59 mm |
| March | 0.3 °C | 14.3 °C | 42.42 mm |
| April | 5.3 °C | 19.6 °C | 57.4 mm |
| May | 11.6 °C | 24.8 °C | 104.65 mm |
| June | 17.3 °C | 30.9 °C | 93.22 mm |
| July | 19.7 °C | 33.4 °C | 94.23 mm |
| August | 18.7 °C | 32.2 °C | 86.11 mm |
| September | 14.2 °C | 28.3 °C | 47.5 mm |
| October | 6.8 °C | 21.3 °C | 53.09 mm |
| November | -0.1 °C | 13.5 °C | 23.37 mm |
| December | -5 °C | 7.1 °C | 23.62 mm |
| Annual | 6.5 °C | 20 °C | 665.49 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |