Alma Center, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.7 °C (low) to 12.7 °C (high). Annual precipitation averages 915.4 Millimeters. Alma Center is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15 °C | -4.4 °C | 29.97 mm |
| February | -13.3 °C | -1.6 °C | 28.19 mm |
| March | -6.7 °C | 5.2 °C | 46.23 mm |
| April | 0.3 °C | 13.1 °C | 88.14 mm |
| May | 6.9 °C | 20.1 °C | 112.78 mm |
| June | 12.5 °C | 25.2 °C | 134.11 mm |
| July | 14.6 °C | 27.3 °C | 105.41 mm |
| August | 13.4 °C | 26.2 °C | 111.51 mm |
| September | 8.7 °C | 22.2 °C | 98.55 mm |
| October | 2.2 °C | 14.7 °C | 75.18 mm |
| November | -4.2 °C | 5.8 °C | 47.24 mm |
| December | -10.8 °C | -1.4 °C | 38.1 mm |
| Annual | 0.7 °C | 12.7 °C | 915.41 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |