Aberdeen, Idaho has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.5 °C (low) to 15.3 °C (high). Annual precipitation averages 247.9 Millimeters. Aberdeen is located in USDA Plant Hardiness Zone 5b. 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 | -9 °C | 0.6 °C | 22.35 mm |
| February | -7.3 °C | 3.3 °C | 17.02 mm |
| March | -2.9 °C | 9.7 °C | 22.86 mm |
| April | -0.1 °C | 14.7 °C | 23.62 mm |
| May | 4.2 °C | 19.9 °C | 30.48 mm |
| June | 7.7 °C | 24.9 °C | 24.64 mm |
| July | 10.9 °C | 30.8 °C | 10.67 mm |
| August | 10 °C | 30.4 °C | 10.92 mm |
| September | 5.5 °C | 24.7 °C | 21.08 mm |
| October | 0.2 °C | 16.3 °C | 22.61 mm |
| November | -4.7 °C | 7.7 °C | 16.26 mm |
| December | -8.7 °C | 1.1 °C | 25.4 mm |
| Annual | 0.5 °C | 15.3 °C | 247.91 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |