Littlefork, Minnesota has a Humid Continental Mild Summer With Dry Winters climate (Köppen classification: Dwb). Average annual temperatures range from -2.7 °C (low) to 9.5 °C (high). Annual precipitation averages 679.2 Millimeters. Littlefork is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -20.9 °C | -9.3 °C | 21.84 mm |
| February | -19.2 °C | -5.9 °C | 18.54 mm |
| March | -11.3 °C | 1.8 °C | 25.91 mm |
| April | -2.8 °C | 10 °C | 43.43 mm |
| May | 4.3 °C | 17.7 °C | 81.53 mm |
| June | 10.1 °C | 23.1 °C | 104.65 mm |
| July | 12.4 °C | 25.6 °C | 97.54 mm |
| August | 11.3 °C | 24.7 °C | 82.8 mm |
| September | 6.7 °C | 19.6 °C | 80.52 mm |
| October | 0.3 °C | 11 °C | 57.91 mm |
| November | -7.3 °C | 1.5 °C | 37.85 mm |
| December | -15.7 °C | -6.1 °C | 26.67 mm |
| Annual | -2.7 °C | 9.5 °C | 679.19 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Plant Hardiness Zone - 2012 | Zone 3a : -40°C to -37.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dwb - Humid Continental Mild Summer With Dry Winters |