Jewell, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.3 °C (low) to 18.4 °C (high). Annual precipitation averages 692.2 Millimeters. Jewell is located in USDA Plant Hardiness Zone 6a. 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 | -8.4 °C | 3.5 °C | 16.76 mm |
| February | -6.6 °C | 6.1 °C | 20.07 mm |
| March | -1.4 °C | 12.5 °C | 36.83 mm |
| April | 4.2 °C | 18.2 °C | 64.01 mm |
| May | 10.6 °C | 23.6 °C | 100.33 mm |
| June | 16.7 °C | 29.7 °C | 95.76 mm |
| July | 19.3 °C | 32.6 °C | 110.49 mm |
| August | 18.1 °C | 30.9 °C | 84.84 mm |
| September | 12.8 °C | 27 °C | 61.98 mm |
| October | 5.6 °C | 19.9 °C | 45.97 mm |
| November | -1.3 °C | 11.7 °C | 30.23 mm |
| December | -6.6 °C | 4.9 °C | 24.89 mm |
| Annual | 5.3 °C | 18.4 °C | 692.16 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 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |