Steele, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.9 °C (low) to 11.2 °C (high). Annual precipitation averages 517.2 Millimeters. Steele is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.3 °C | -7 °C | 12.7 mm |
| February | -15.2 °C | -4.5 °C | 10.92 mm |
| March | -8.5 °C | 2.4 °C | 17.78 mm |
| April | -1.4 °C | 11.8 °C | 31.75 mm |
| May | 5.6 °C | 18.9 °C | 70.87 mm |
| June | 11.6 °C | 23.9 °C | 89.92 mm |
| July | 14.3 °C | 27.4 °C | 86.61 mm |
| August | 12.9 °C | 27.1 °C | 60.45 mm |
| September | 7.8 °C | 21.9 °C | 52.58 mm |
| October | 0.4 °C | 13.1 °C | 46.23 mm |
| November | -7.3 °C | 3.4 °C | 19.56 mm |
| December | -13.7 °C | -4.2 °C | 17.78 mm |
| Annual | -0.9 °C | 11.2 °C | 517.15 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| 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 |