Newburg, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.1 °C (low) to 19.1 °C (high). Annual precipitation averages 1166.9 Millimeters. 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 | -6.6 °C | 5.1 °C | 67.06 mm |
| February | -4.5 °C | 8.2 °C | 64.26 mm |
| March | -0.1 °C | 13.7 °C | 101.35 mm |
| April | 5.7 °C | 19.8 °C | 117.09 mm |
| May | 11.2 °C | 24.3 °C | 139.45 mm |
| June | 16.3 °C | 28.7 °C | 112.52 mm |
| July | 18.6 °C | 31.2 °C | 109.22 mm |
| August | 17.4 °C | 30.9 °C | 103.38 mm |
| September | 12.6 °C | 26.6 °C | 105.92 mm |
| October | 6.2 °C | 20.6 °C | 80.52 mm |
| November | 0.5 °C | 13.3 °C | 97.28 mm |
| December | -4.1 °C | 7.3 °C | 68.83 mm |
| Annual | 6.1 °C | 19.1 °C | 1166.88 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |