Mayville, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.3 °F (low) to 55.2 °F (high). Annual precipitation averages 34.5 Inches. Mayville is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 10.0 °F | 26.0 °F | 1.45 in. |
| February | 12.4 °F | 29.6 °F | 1.35 in. |
| March | 23.1 °F | 41.5 °F | 1.88 in. |
| April | 34.7 °F | 54.7 °F | 3.55 in. |
| May | 46.3 °F | 67.0 °F | 3.83 in. |
| June | 56.3 °F | 76.7 °F | 4.8 in. |
| July | 60.5 °F | 80.7 °F | 4.07 in. |
| August | 58.5 °F | 78.8 °F | 3.76 in. |
| September | 50.6 °F | 72.2 °F | 3.28 in. |
| October | 38.9 °F | 59.0 °F | 2.91 in. |
| November | 27.8 °F | 44.5 °F | 1.99 in. |
| December | 16.8 °F | 31.7 °F | 1.64 in. |
| Annual | 36.3 °F | 55.2 °F | 34.51 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |