Thiensville, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.7 °F (low) to 56.4 °F (high). Annual precipitation averages 37.4 Inches. Thiensville is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.5 °F | 29.0 °F | 1.89 in. |
| February | 17.0 °F | 32.5 °F | 1.63 in. |
| March | 25.8 °F | 42.7 °F | 2.25 in. |
| April | 35.8 °F | 54.4 °F | 4.18 in. |
| May | 46.3 °F | 66.5 °F | 4.24 in. |
| June | 56.3 °F | 76.3 °F | 4.21 in. |
| July | 62.0 °F | 81.3 °F | 4.0 in. |
| August | 61.0 °F | 79.8 °F | 4.06 in. |
| September | 53.3 °F | 72.7 °F | 3.5 in. |
| October | 41.7 °F | 60.1 °F | 3.05 in. |
| November | 30.5 °F | 46.4 °F | 2.17 in. |
| December | 20.6 °F | 34.6 °F | 2.2 in. |
| Annual | 38.7 °F | 56.4 °F | 37.38 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |