Pine Island, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.8 °F (low) to 54.6 °F (high). Annual precipitation averages 34.8 Inches. Pine Island 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.6 °F | 23.1 °F | 0.99 in. |
| February | 9.3 °F | 27.8 °F | 0.99 in. |
| March | 21.8 °F | 40.2 °F | 1.89 in. |
| April | 34.0 °F | 55.6 °F | 3.32 in. |
| May | 46.3 °F | 68.0 °F | 4.3 in. |
| June | 56.9 °F | 77.5 °F | 5.38 in. |
| July | 60.5 °F | 81.4 °F | 4.3 in. |
| August | 58.2 °F | 79.2 °F | 4.76 in. |
| September | 49.9 °F | 72.5 °F | 3.62 in. |
| October | 37.2 °F | 58.9 °F | 2.4 in. |
| November | 25.1 °F | 42.2 °F | 1.59 in. |
| December | 13.2 °F | 28.8 °F | 1.24 in. |
| Annual | 34.8 °F | 54.6 °F | 34.78 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |