Arlington, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.6 °C (low) to 13.5 °C (high). Annual precipitation averages 936 Millimeters. Arlington is located in USDA Plant Hardiness Zone 5a. 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 | -12.2 °C | -2.9 °C | 33.02 mm |
| February | -10.2 °C | -0.7 °C | 34.8 mm |
| March | -4.7 °C | 5.9 °C | 53.85 mm |
| April | 1.7 °C | 13.6 °C | 99.06 mm |
| May | 8.2 °C | 20.4 °C | 109.47 mm |
| June | 13.8 °C | 25.7 °C | 135.64 mm |
| July | 16 °C | 27.7 °C | 109.98 mm |
| August | 15.1 °C | 26.8 °C | 101.09 mm |
| September | 10.4 °C | 22.9 °C | 90.68 mm |
| October | 4 °C | 15.6 °C | 72.64 mm |
| November | -2.4 °C | 7 °C | 53.59 mm |
| December | -8.3 °C | 0.1 °C | 42.16 mm |
| Annual | 2.6 °C | 13.5 °C | 935.98 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |