Pipestone, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.2 °F (low) to 54.3 °F (high). Annual precipitation averages 27.7 Inches. Pipestone 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 | 5.4 °F | 22.8 °F | 0.57 in. |
| February | 9.0 °F | 27.6 °F | 0.74 in. |
| March | 20.7 °F | 39.6 °F | 1.32 in. |
| April | 33.0 °F | 54.8 °F | 2.86 in. |
| May | 46.1 °F | 67.3 °F | 3.72 in. |
| June | 57.1 °F | 77.6 °F | 4.43 in. |
| July | 61.1 °F | 82.0 °F | 3.37 in. |
| August | 58.2 °F | 79.3 °F | 3.31 in. |
| September | 49.5 °F | 72.5 °F | 3.19 in. |
| October | 36.1 °F | 58.5 °F | 2.19 in. |
| November | 22.7 °F | 41.7 °F | 1.13 in. |
| December | 11.3 °F | 27.5 °F | 0.85 in. |
| Annual | 34.2 °F | 54.3 °F | 27.68 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 | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |