Rolla, Kansas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 4.8 °C (low) to 21.2 °C (high). Annual precipitation averages 453.9 Millimeters. Rolla 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.8 °C | 8.8 °C | 10.16 mm |
| February | -5.7 °C | 10.8 °C | 8.13 mm |
| March | -1.6 °C | 15.8 °C | 26.42 mm |
| April | 3.2 °C | 20.4 °C | 35.31 mm |
| May | 9.3 °C | 25.8 °C | 53.09 mm |
| June | 15.3 °C | 31.6 °C | 69.09 mm |
| July | 17.9 °C | 33.9 °C | 70.87 mm |
| August | 17 °C | 32.6 °C | 75.95 mm |
| September | 12.4 °C | 28.8 °C | 34.8 mm |
| October | 4.9 °C | 22 °C | 41.91 mm |
| November | -1.7 °C | 14.8 °C | 12.7 mm |
| December | -6.3 °C | 8.8 °C | 15.49 mm |
| Annual | 4.8 °C | 21.2 °C | 453.92 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 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 | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |