Lawrence, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.8 °C (low) to 18.4 °C (high). Annual precipitation averages 991.9 Millimeters. Lawrence is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.2 °C | 3.5 °C | 27.43 mm |
| February | -4.9 °C | 6.2 °C | 38.61 mm |
| March | 0.4 °C | 12.8 °C | 60.96 mm |
| April | 6.2 °C | 18.6 °C | 100.84 mm |
| May | 12.6 °C | 24 °C | 132.33 mm |
| June | 18.3 °C | 29.4 °C | 134.37 mm |
| July | 20.5 °C | 31.9 °C | 105.66 mm |
| August | 19.3 °C | 30.9 °C | 114.3 mm |
| September | 14.2 °C | 26.6 °C | 101.09 mm |
| October | 7.1 °C | 19.7 °C | 80.77 mm |
| November | 0.5 °C | 12.1 °C | 52.58 mm |
| December | -4.9 °C | 5.4 °C | 42.93 mm |
| Annual | 6.8 °C | 18.4 °C | 991.87 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |