Randolph, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.9 °F (low) to 65.6 °F (high). Annual precipitation averages 32.5 Inches. Randolph is located in USDA Plant Hardiness Zone 6a. 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 | 17.7 °F | 39.1 °F | 0.71 in. |
| February | 21.3 °F | 43.9 °F | 1.07 in. |
| March | 31.4 °F | 55.4 °F | 1.99 in. |
| April | 41.5 °F | 65.7 °F | 3.1 in. |
| May | 53.0 °F | 74.8 °F | 4.83 in. |
| June | 63.3 °F | 84.8 °F | 4.64 in. |
| July | 67.9 °F | 89.7 °F | 4.34 in. |
| August | 65.6 °F | 88.0 °F | 3.7 in. |
| September | 56.4 °F | 80.4 °F | 2.94 in. |
| October | 43.8 °F | 68.5 °F | 2.44 in. |
| November | 31.5 °F | 54.3 °F | 1.58 in. |
| December | 21.8 °F | 42.4 °F | 1.12 in. |
| Annual | 42.9 °F | 65.6 °F | 32.46 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°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 |