Jessie, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.2 °C (low) to 9.9 °C (high). Annual precipitation averages 545.9 Millimeters. Jessie 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 | -18.7 °C | -9.2 °C | 13.21 mm |
| February | -16.5 °C | -6.4 °C | 12.19 mm |
| March | -9.2 °C | 0.6 °C | 21.08 mm |
| April | -1.6 °C | 10.2 °C | 25.4 mm |
| May | 5.8 °C | 18.4 °C | 73.66 mm |
| June | 12.3 °C | 23.5 °C | 97.28 mm |
| July | 14.5 °C | 26.1 °C | 94.49 mm |
| August | 13 °C | 25.9 °C | 70.87 mm |
| September | 7.8 °C | 21.1 °C | 55.37 mm |
| October | 0.6 °C | 12.1 °C | 43.43 mm |
| November | -7.4 °C | 2.1 °C | 20.07 mm |
| December | -14.4 °C | -5.9 °C | 18.8 mm |
| Annual | -1.2 °C | 9.9 °C | 545.85 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | Over 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |