Crandon, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.1 °F (low) to 50.8 °F (high). Annual precipitation averages 32.6 Inches. Crandon is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.4 °F | 21.5 °F | 1.24 in. |
| February | 4.9 °F | 26.2 °F | 1.09 in. |
| March | 14.6 °F | 37.6 °F | 1.67 in. |
| April | 27.7 °F | 50.7 °F | 2.85 in. |
| May | 40.3 °F | 64.4 °F | 3.58 in. |
| June | 50.4 °F | 72.8 °F | 4.38 in. |
| July | 54.5 °F | 76.7 °F | 4.03 in. |
| August | 52.7 °F | 74.7 °F | 3.32 in. |
| September | 45.2 °F | 66.9 °F | 3.71 in. |
| October | 34.0 °F | 53.5 °F | 3.22 in. |
| November | 22.7 °F | 38.5 °F | 1.93 in. |
| December | 10.6 °F | 26.4 °F | 1.57 in. |
| Annual | 30.1 °F | 50.8 °F | 32.59 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |