Palco, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.7 °F (low) to 66.9 °F (high). Annual precipitation averages 24.8 Inches. Palco is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.6 °F | 42.2 °F | 0.59 in. |
| February | 19.9 °F | 45.7 °F | 0.73 in. |
| March | 28.9 °F | 56.6 °F | 1.31 in. |
| April | 38.0 °F | 65.5 °F | 2.15 in. |
| May | 49.5 °F | 74.9 °F | 3.93 in. |
| June | 60.4 °F | 86.5 °F | 3.26 in. |
| July | 65.9 °F | 91.9 °F | 3.93 in. |
| August | 63.8 °F | 89.7 °F | 3.39 in. |
| September | 54.7 °F | 81.8 °F | 2.05 in. |
| October | 40.8 °F | 68.8 °F | 1.67 in. |
| November | 28.8 °F | 55.4 °F | 1.0 in. |
| December | 19.7 °F | 43.2 °F | 0.83 in. |
| Annual | 40.7 °F | 66.9 °F | 24.84 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |