De Pere, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.1 °C (low) to 12.4 °C (high). Annual precipitation averages 826.5 Millimeters. De Pere 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.1 °C | -3.7 °C | 38.61 mm |
| February | -11.1 °C | -1.8 °C | 30.23 mm |
| March | -5.7 °C | 4.2 °C | 46.74 mm |
| April | 0.7 °C | 11.8 °C | 81.28 mm |
| May | 7.1 °C | 18.9 °C | 93.47 mm |
| June | 12.7 °C | 24.3 °C | 105.92 mm |
| July | 15.2 °C | 26.8 °C | 93.73 mm |
| August | 14.4 °C | 25.8 °C | 85.85 mm |
| September | 9.9 °C | 21.9 °C | 85.6 mm |
| October | 3.9 °C | 14.4 °C | 71.63 mm |
| November | -2.3 °C | 6.3 °C | 49.02 mm |
| December | -8.1 °C | -0.4 °C | 44.45 mm |
| Annual | 2.1 °C | 12.4 °C | 826.53 mm |
| 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |