Viking, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 28.5 °F (low) to 49 °F (high). Annual precipitation averages 24.2 Inches. Viking is located in USDA Plant Hardiness Zone 3b. 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 | -4.5 °F | 13.9 °F | 0.72 in. |
| February | -1.6 °F | 18.6 °F | 0.65 in. |
| March | 13.1 °F | 32.5 °F | 0.81 in. |
| April | 28.8 °F | 50.3 °F | 1.25 in. |
| May | 41.8 °F | 65.0 °F | 3.22 in. |
| June | 53.5 °F | 74.4 °F | 4.05 in. |
| July | 56.5 °F | 78.7 °F | 3.65 in. |
| August | 53.7 °F | 78.1 °F | 2.97 in. |
| September | 44.8 °F | 68.8 °F | 2.84 in. |
| October | 32.9 °F | 52.7 °F | 2.06 in. |
| November | 18.3 °F | 34.6 °F | 1.0 in. |
| December | 4.2 °F | 20.2 °F | 0.98 in. |
| Annual | 28.5 °F | 49 °F | 24.2 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 3b : -35°F to -30°F |
| Plant Hardiness Zone - 2012 | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |