Henriette, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.5 °F (low) to 52.9 °F (high). Annual precipitation averages 31.5 Inches. Henriette is located in USDA Plant Hardiness Zone 4a. 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 | 1.1 °F | 21.2 °F | 0.73 in. |
| February | 4.8 °F | 26.6 °F | 0.86 in. |
| March | 17.6 °F | 39.1 °F | 1.54 in. |
| April | 30.6 °F | 53.4 °F | 2.7 in. |
| May | 43.0 °F | 66.8 °F | 3.78 in. |
| June | 53.5 °F | 76.2 °F | 4.47 in. |
| July | 57.9 °F | 80.5 °F | 4.45 in. |
| August | 55.3 °F | 78.6 °F | 3.98 in. |
| September | 46.8 °F | 70.4 °F | 3.18 in. |
| October | 34.8 °F | 56.0 °F | 3.02 in. |
| November | 22.6 °F | 39.8 °F | 1.61 in. |
| December | 9.6 °F | 26.5 °F | 1.15 in. |
| Annual | 31.5 °F | 52.9 °F | 31.47 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 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |