Butte City, Idaho has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -2.6 °C (low) to 13.7 °C (high). Annual precipitation averages 221 Millimeters. Butte City is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.8 °C | -2 °C | 20.07 mm |
| February | -12.7 °C | 0.6 °C | 18.03 mm |
| March | -6.7 °C | 6.8 °C | 18.03 mm |
| April | -2.3 °C | 13.2 °C | 21.59 mm |
| May | 2.1 °C | 18.6 °C | 31.5 mm |
| June | 5.6 °C | 23.9 °C | 23.88 mm |
| July | 9.3 °C | 30.2 °C | 6.6 mm |
| August | 8.3 °C | 29.4 °C | 12.7 mm |
| September | 3.7 °C | 23.6 °C | 17.02 mm |
| October | -2.1 °C | 15.3 °C | 18.8 mm |
| November | -8.2 °C | 5.8 °C | 12.45 mm |
| December | -13.6 °C | -1.4 °C | 20.32 mm |
| Annual | -2.6 °C | 13.7 °C | 220.99 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |