Westwood Hills, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.3 °C (low) to 18.6 °C (high). Annual precipitation averages 1044.2 Millimeters. Westwood Hills is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.6 °C | 3.9 °C | 31.75 mm |
| February | -4.4 °C | 6.8 °C | 41.15 mm |
| March | 0.9 °C | 12.9 °C | 62.48 mm |
| April | 6.7 °C | 18.9 °C | 100.08 mm |
| May | 12.8 °C | 23.8 °C | 137.41 mm |
| June | 18.2 °C | 29.1 °C | 133.35 mm |
| July | 20.6 °C | 31.6 °C | 115.82 mm |
| August | 19.3 °C | 30.8 °C | 115.06 mm |
| September | 14.6 °C | 26.7 °C | 115.06 mm |
| October | 7.7 °C | 19.9 °C | 91.19 mm |
| November | 1.3 °C | 12.4 °C | 56.64 mm |
| December | -4 °C | 6 °C | 44.2 mm |
| Annual | 7.3 °C | 18.6 °C | 1044.19 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 |