Old Appleton, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 46.3 °F (low) to 67.4 °F (high). Annual precipitation averages 46.8 Inches. Old Appleton is located in USDA Plant Hardiness Zone 7a. 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 | 24.1 °F | 41.9 °F | 3.07 in. |
| February | 27.7 °F | 47.2 °F | 3.05 in. |
| March | 35.5 °F | 57.0 °F | 4.22 in. |
| April | 45.6 °F | 68.3 °F | 5.22 in. |
| May | 56.0 °F | 77.2 °F | 5.42 in. |
| June | 64.9 °F | 86.0 °F | 4.31 in. |
| July | 68.5 °F | 88.9 °F | 3.9 in. |
| August | 65.9 °F | 87.9 °F | 3.16 in. |
| September | 57.5 °F | 81.9 °F | 3.25 in. |
| October | 45.7 °F | 70.7 °F | 3.48 in. |
| November | 36.0 °F | 56.9 °F | 4.32 in. |
| December | 27.8 °F | 45.4 °F | 3.44 in. |
| Annual | 46.3 °F | 67.4 °F | 46.84 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |