New Hampton, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.1 °F (low) to 62 °F (high). Annual precipitation averages 39.1 Inches. New Hampton is located in USDA Plant Hardiness Zone 5b. 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 | 14.9 °F | 33.5 °F | 0.98 in. |
| February | 19.1 °F | 38.7 °F | 1.38 in. |
| March | 29.6 °F | 51.1 °F | 2.23 in. |
| April | 40.2 °F | 62.5 °F | 3.92 in. |
| May | 51.7 °F | 72.7 °F | 5.66 in. |
| June | 61.5 °F | 82.2 °F | 5.48 in. |
| July | 65.6 °F | 86.5 °F | 4.77 in. |
| August | 63.3 °F | 85.0 °F | 4.13 in. |
| September | 54.4 °F | 77.5 °F | 4.01 in. |
| October | 42.3 °F | 65.2 °F | 3.11 in. |
| November | 30.5 °F | 50.5 °F | 1.92 in. |
| December | 20.3 °F | 38.2 °F | 1.53 in. |
| Annual | 41.1 °F | 62 °F | 39.12 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |