Little Suamico, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.6 °F (low) to 53.7 °F (high). Annual precipitation averages 32.3 Inches. Little Suamico 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 | 9.4 °F | 25.2 °F | 1.57 in. |
| February | 10.3 °F | 28.4 °F | 1.17 in. |
| March | 20.5 °F | 39.3 °F | 1.81 in. |
| April | 31.9 °F | 52.0 °F | 3.16 in. |
| May | 43.7 °F | 65.2 °F | 3.51 in. |
| June | 53.7 °F | 74.8 °F | 3.91 in. |
| July | 58.2 °F | 79.6 °F | 3.64 in. |
| August | 56.9 °F | 78.0 °F | 3.43 in. |
| September | 49.2 °F | 70.6 °F | 3.35 in. |
| October | 38.0 °F | 57.1 °F | 3.02 in. |
| November | 27.3 °F | 43.2 °F | 1.94 in. |
| December | 16.3 °F | 30.8 °F | 1.77 in. |
| Annual | 34.6 °F | 53.7 °F | 32.28 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 |