New Munster, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.7 °F (low) to 57.1 °F (high). Annual precipitation averages 36.6 Inches. New Munster is located in USDA Plant Hardiness Zone 5b. 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 | 13.0 °F | 28.8 °F | 1.81 in. |
| February | 15.9 °F | 32.6 °F | 1.81 in. |
| March | 25.1 °F | 43.6 °F | 2.15 in. |
| April | 35.5 °F | 56.6 °F | 3.76 in. |
| May | 46.1 °F | 68.1 °F | 4.24 in. |
| June | 56.4 °F | 78.0 °F | 4.65 in. |
| July | 60.9 °F | 82.1 °F | 3.65 in. |
| August | 59.3 °F | 80.5 °F | 3.64 in. |
| September | 51.4 °F | 74.0 °F | 3.53 in. |
| October | 40.1 °F | 60.7 °F | 2.95 in. |
| November | 29.5 °F | 46.4 °F | 2.4 in. |
| December | 19.3 °F | 34.1 °F | 2.0 in. |
| Annual | 37.7 °F | 57.1 °F | 36.59 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |