Spring Valley, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 34.9 °F (low) to 53.5 °F (high). Annual precipitation averages 35.2 Inches. Spring Valley 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 | 6.2 °F | 22.2 °F | 0.93 in. |
| February | 9.9 °F | 26.6 °F | 1.02 in. |
| March | 21.8 °F | 39.0 °F | 1.78 in. |
| April | 34.1 °F | 54.2 °F | 3.64 in. |
| May | 46.5 °F | 66.7 °F | 4.58 in. |
| June | 57.0 °F | 76.6 °F | 5.66 in. |
| July | 60.3 °F | 79.9 °F | 4.3 in. |
| August | 57.7 °F | 77.8 °F | 4.15 in. |
| September | 49.5 °F | 71.4 °F | 3.6 in. |
| October | 37.2 °F | 57.7 °F | 2.61 in. |
| November | 25.0 °F | 41.5 °F | 1.64 in. |
| December | 13.3 °F | 28.0 °F | 1.26 in. |
| Annual | 34.9 °F | 53.5 °F | 35.17 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 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |