Sawyer, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.6 °C (low) to 11.1 °C (high). Annual precipitation averages 487.2 Millimeters. Sawyer is located in USDA Plant Hardiness Zone 4a. 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 | -18.1 °C | -7.3 °C | 14.48 mm |
| February | -16.1 °C | -4.7 °C | 13.21 mm |
| March | -9.3 °C | 2.1 °C | 18.54 mm |
| April | -2.1 °C | 11.9 °C | 25.65 mm |
| May | 5.3 °C | 19.3 °C | 70.1 mm |
| June | 11.3 °C | 24.1 °C | 98.81 mm |
| July | 13.8 °C | 27.2 °C | 75.69 mm |
| August | 12.2 °C | 27.3 °C | 52.83 mm |
| September | 7 °C | 22.1 °C | 42.67 mm |
| October | -0.3 °C | 13.1 °C | 36.83 mm |
| November | -8.1 °C | 2.9 °C | 21.59 mm |
| December | -14.8 °C | -4.5 °C | 16.76 mm |
| Annual | -1.6 °C | 11.1 °C | 487.16 mm |
| 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 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |