Freeburg, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.3 °F (low) to 65.6 °F (high). Annual precipitation averages 44.1 Inches. Freeburg 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 | 21.0 °F | 40.3 °F | 2.34 in. |
| February | 24.7 °F | 45.4 °F | 2.22 in. |
| March | 33.1 °F | 55.6 °F | 3.4 in. |
| April | 43.5 °F | 66.5 °F | 4.62 in. |
| May | 53.9 °F | 75.0 °F | 5.21 in. |
| June | 62.8 °F | 83.0 °F | 4.53 in. |
| July | 66.9 °F | 87.7 °F | 4.44 in. |
| August | 64.9 °F | 87.0 °F | 3.95 in. |
| September | 56.5 °F | 79.6 °F | 4.18 in. |
| October | 44.9 °F | 68.1 °F | 3.26 in. |
| November | 34.2 °F | 55.2 °F | 3.38 in. |
| December | 25.4 °F | 44.3 °F | 2.55 in. |
| Annual | 44.3 °F | 65.6 °F | 44.08 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 |