Holyrood, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.8 °F (low) to 67 °F (high). Annual precipitation averages 28.7 Inches. Holyrood 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 | 20.3 °F | 42.1 °F | 0.7 in. |
| February | 23.0 °F | 46.4 °F | 1.11 in. |
| March | 32.4 °F | 56.8 °F | 1.69 in. |
| April | 41.5 °F | 66.2 °F | 2.27 in. |
| May | 53.0 °F | 75.1 °F | 4.64 in. |
| June | 63.9 °F | 87.0 °F | 3.87 in. |
| July | 68.1 °F | 91.2 °F | 3.85 in. |
| August | 65.9 °F | 88.6 °F | 3.94 in. |
| September | 57.7 °F | 81.7 °F | 2.37 in. |
| October | 44.8 °F | 69.6 °F | 2.12 in. |
| November | 32.0 °F | 55.5 °F | 1.17 in. |
| December | 22.9 °F | 43.7 °F | 0.94 in. |
| Annual | 43.8 °F | 67 °F | 28.67 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |