Sublette, Kansas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 5.1 °C (low) to 20.7 °C (high). Annual precipitation averages 494.3 Millimeters. Sublette is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.2 °C | 7.8 °C | 11.18 mm |
| February | -5.4 °C | 10.3 °C | 9.91 mm |
| March | -1.2 °C | 15.3 °C | 29.72 mm |
| April | 3.4 °C | 19.8 °C | 41.4 mm |
| May | 9.7 °C | 25.4 °C | 61.98 mm |
| June | 15.8 °C | 31.2 °C | 81.03 mm |
| July | 18.4 °C | 33.4 °C | 74.93 mm |
| August | 17.3 °C | 32.1 °C | 71.88 mm |
| September | 12.8 °C | 28.6 °C | 34.54 mm |
| October | 5.3 °C | 21.7 °C | 43.18 mm |
| November | -1.7 °C | 14.3 °C | 15.49 mm |
| December | -6.4 °C | 8.1 °C | 19.05 mm |
| Annual | 5.1 °C | 20.7 °C | 494.29 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |