Bigelow, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35 °F (low) to 55 °F (high). Annual precipitation averages 30.3 Inches. Bigelow 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 | 5.9 °F | 23.1 °F | 0.74 in. |
| February | 9.9 °F | 27.6 °F | 0.85 in. |
| March | 21.2 °F | 40.2 °F | 1.56 in. |
| April | 33.6 °F | 55.9 °F | 3.17 in. |
| May | 46.7 °F | 68.6 °F | 4.05 in. |
| June | 58.1 °F | 78.8 °F | 4.87 in. |
| July | 61.8 °F | 82.5 °F | 3.44 in. |
| August | 59.4 °F | 80.0 °F | 3.44 in. |
| September | 50.5 °F | 73.4 °F | 3.34 in. |
| October | 37.0 °F | 59.5 °F | 2.42 in. |
| November | 23.5 °F | 42.0 °F | 1.42 in. |
| December | 11.9 °F | 28.1 °F | 0.99 in. |
| Annual | 35 °F | 55 °F | 30.29 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |