Rosalia, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.5 °F (low) to 67.7 °F (high). Annual precipitation averages 38.8 Inches. Rosalia is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.4 °F | 43.1 °F | 0.94 in. |
| February | 25.0 °F | 47.6 °F | 1.49 in. |
| March | 34.1 °F | 58.4 °F | 2.63 in. |
| April | 43.9 °F | 67.8 °F | 3.48 in. |
| May | 55.0 °F | 76.0 °F | 5.56 in. |
| June | 64.7 °F | 85.4 °F | 5.54 in. |
| July | 69.1 °F | 90.5 °F | 4.23 in. |
| August | 67.1 °F | 89.3 °F | 4.06 in. |
| September | 58.9 °F | 82.4 °F | 4.05 in. |
| October | 46.4 °F | 70.7 °F | 3.36 in. |
| November | 34.4 °F | 56.4 °F | 2.02 in. |
| December | 25.0 °F | 44.9 °F | 1.39 in. |
| Annual | 45.5 °F | 67.7 °F | 38.75 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |