Arpin, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.1 °F (low) to 54 °F (high). Annual precipitation averages 33 Inches. Arpin is located in USDA Plant Hardiness Zone 4b. 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 | 6.3 °F | 23.8 °F | 1.09 in. |
| February | 8.9 °F | 28.3 °F | 1.01 in. |
| March | 20.3 °F | 40.3 °F | 1.71 in. |
| April | 32.9 °F | 54.6 °F | 3.16 in. |
| May | 45.2 °F | 67.0 °F | 3.9 in. |
| June | 55.1 °F | 76.1 °F | 4.67 in. |
| July | 58.9 °F | 80.5 °F | 3.74 in. |
| August | 56.9 °F | 78.4 °F | 3.95 in. |
| September | 48.6 °F | 70.8 °F | 3.65 in. |
| October | 36.8 °F | 57.3 °F | 2.83 in. |
| November | 25.3 °F | 41.8 °F | 1.83 in. |
| December | 13.4 °F | 28.9 °F | 1.44 in. |
| Annual | 34.1 °F | 54 °F | 32.98 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |