Excelsior Estates, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.8 °F (low) to 63.9 °F (high). Annual precipitation averages 41.3 Inches. Excelsior Estates is located in USDA Plant Hardiness Zone 6a. 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 | 17.4 °F | 36.7 °F | 1.24 in. |
| February | 21.5 °F | 42.0 °F | 1.67 in. |
| March | 31.7 °F | 54.0 °F | 2.53 in. |
| April | 41.6 °F | 64.2 °F | 3.93 in. |
| May | 52.9 °F | 73.6 °F | 5.69 in. |
| June | 62.6 °F | 83.1 °F | 5.18 in. |
| July | 66.9 °F | 87.4 °F | 4.94 in. |
| August | 64.7 °F | 86.2 °F | 4.35 in. |
| September | 55.8 °F | 78.6 °F | 4.46 in. |
| October | 43.8 °F | 66.8 °F | 3.41 in. |
| November | 32.4 °F | 52.9 °F | 2.14 in. |
| December | 22.7 °F | 40.8 °F | 1.71 in. |
| Annual | 42.8 °F | 63.9 °F | 41.25 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 6a : -10°F to -5°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 |