Gilbert, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -2.1 °C (low) to 9.6 °C (high). Annual precipitation averages 705.6 Millimeters. Gilbert is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -19.2 °C | -8.1 °C | 22.35 mm |
| February | -17.6 °C | -4.8 °C | 18.54 mm |
| March | -10.4 °C | 2.5 °C | 26.92 mm |
| April | -2.8 °C | 9.8 °C | 46.99 mm |
| May | 4.3 °C | 17.4 °C | 75.69 mm |
| June | 10.2 °C | 22.7 °C | 106.17 mm |
| July | 12.8 °C | 25.2 °C | 105.16 mm |
| August | 11 °C | 24.3 °C | 84.33 mm |
| September | 7.3 °C | 19.4 °C | 88.65 mm |
| October | 0.6 °C | 10.8 °C | 68.07 mm |
| November | -7.2 °C | 1.5 °C | 35.81 mm |
| December | -14.6 °C | -5.5 °C | 26.92 mm |
| Annual | -2.1 °C | 9.6 °C | 705.6 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |