Randolph, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.1 °F (low) to 65.3 °F (high). Annual precipitation averages 41.7 Inches. Randolph is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.0 °F | 38.6 °F | 1.3 in. |
| February | 24.0 °F | 44.2 °F | 1.61 in. |
| March | 33.5 °F | 55.3 °F | 2.49 in. |
| April | 44.0 °F | 65.8 °F | 4.0 in. |
| May | 55.1 °F | 75.0 °F | 5.64 in. |
| June | 64.9 °F | 84.4 °F | 5.44 in. |
| July | 69.2 °F | 88.8 °F | 4.68 in. |
| August | 67.0 °F | 87.5 °F | 4.68 in. |
| September | 58.1 °F | 79.9 °F | 4.41 in. |
| October | 45.9 °F | 68.0 °F | 3.5 in. |
| November | 34.3 °F | 53.9 °F | 2.26 in. |
| December | 24.8 °F | 42.6 °F | 1.71 in. |
| Annual | 45.1 °F | 65.3 °F | 41.72 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |