Amidon, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.4 °C (low) to 13.1 °C (high). Annual precipitation averages 376.2 Millimeters. Amidon is located in USDA Plant Hardiness Zone 4b. 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 | -13.8 °C | -2.8 °C | 8.13 mm |
| February | -12.1 °C | -0.5 °C | 8.38 mm |
| March | -7.1 °C | 5.4 °C | 15.75 mm |
| April | -1.5 °C | 12.3 °C | 26.92 mm |
| May | 4.8 °C | 18.4 °C | 61.98 mm |
| June | 10.2 °C | 24.2 °C | 72.39 mm |
| July | 13.5 °C | 29 °C | 52.58 mm |
| August | 12.2 °C | 29.2 °C | 34.8 mm |
| September | 6.9 °C | 23.1 °C | 43.94 mm |
| October | 0.1 °C | 13.8 °C | 31.24 mm |
| November | -6.6 °C | 5.4 °C | 11.68 mm |
| December | -11.8 °C | -0.6 °C | 8.38 mm |
| Annual | -0.4 °C | 13.1 °C | 376.17 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |