Cold Spring, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.6 °F (low) to 53.2 °F (high). Annual precipitation averages 29.7 Inches. Cold Spring 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.2 °F | 20.8 °F | 0.69 in. |
| February | 6.5 °F | 25.5 °F | 0.84 in. |
| March | 19.3 °F | 38.3 °F | 1.49 in. |
| April | 32.8 °F | 54.1 °F | 2.59 in. |
| May | 45.9 °F | 67.4 °F | 3.78 in. |
| June | 56.6 °F | 77.0 °F | 4.49 in. |
| July | 60.7 °F | 81.2 °F | 3.97 in. |
| August | 57.9 °F | 79.1 °F | 4.07 in. |
| September | 49.5 °F | 71.6 °F | 2.91 in. |
| October | 36.8 °F | 56.8 °F | 2.62 in. |
| November | 23.6 °F | 39.9 °F | 1.33 in. |
| December | 10.8 °F | 26.3 °F | 0.93 in. |
| Annual | 33.6 °F | 53.2 °F | 29.71 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |