University City, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.7 °F (low) to 66.6 °F (high). Annual precipitation averages 43.8 Inches. University City is located in USDA Plant Hardiness Zone 7a. 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 | 24.0 °F | 40.2 °F | 2.68 in. |
| February | 27.4 °F | 45.7 °F | 2.31 in. |
| March | 36.1 °F | 55.8 °F | 3.48 in. |
| April | 46.9 °F | 67.7 °F | 4.68 in. |
| May | 57.6 °F | 76.8 °F | 5.16 in. |
| June | 66.6 °F | 85.4 °F | 4.58 in. |
| July | 70.6 °F | 89.0 °F | 4.09 in. |
| August | 68.5 °F | 87.6 °F | 3.79 in. |
| September | 60.3 °F | 80.9 °F | 3.34 in. |
| October | 48.8 °F | 69.4 °F | 3.38 in. |
| November | 37.3 °F | 55.4 °F | 3.56 in. |
| December | 28.7 °F | 44.7 °F | 2.76 in. |
| Annual | 47.7 °F | 66.6 °F | 43.81 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |