De Pere, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.7 °F (low) to 54.3 °F (high). Annual precipitation averages 32.5 Inches. 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 | 10.2 °F | 25.3 °F | 1.52 in. |
| February | 12.0 °F | 28.7 °F | 1.19 in. |
| March | 21.8 °F | 39.6 °F | 1.84 in. |
| April | 33.3 °F | 53.2 °F | 3.2 in. |
| May | 44.7 °F | 66.1 °F | 3.68 in. |
| June | 54.9 °F | 75.7 °F | 4.17 in. |
| July | 59.4 °F | 80.3 °F | 3.69 in. |
| August | 58.0 °F | 78.5 °F | 3.38 in. |
| September | 49.9 °F | 71.4 °F | 3.37 in. |
| October | 39.0 °F | 58.0 °F | 2.82 in. |
| November | 27.9 °F | 43.4 °F | 1.93 in. |
| December | 17.4 °F | 31.2 °F | 1.75 in. |
| Annual | 35.7 °F | 54.3 °F | 32.54 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |