Newburg, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43 °F (low) to 66.5 °F (high). Annual precipitation averages 45.9 Inches. Newburg is located in USDA Plant Hardiness Zone 6a. 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 | 20.2 °F | 41.2 °F | 2.64 in. |
| February | 23.9 °F | 46.8 °F | 2.53 in. |
| March | 31.9 °F | 56.6 °F | 3.99 in. |
| April | 42.2 °F | 67.7 °F | 4.61 in. |
| May | 52.2 °F | 75.8 °F | 5.49 in. |
| June | 61.4 °F | 83.7 °F | 4.43 in. |
| July | 65.5 °F | 88.1 °F | 4.3 in. |
| August | 63.4 °F | 87.6 °F | 4.07 in. |
| September | 54.7 °F | 79.9 °F | 4.17 in. |
| October | 43.1 °F | 69.0 °F | 3.17 in. |
| November | 32.9 °F | 56.0 °F | 3.83 in. |
| December | 24.7 °F | 45.2 °F | 2.71 in. |
| Annual | 43 °F | 66.5 °F | 45.94 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 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 |