Pocatello, Idaho has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.7 °F (low) to 60.4 °F (high). Annual precipitation averages 12.8 Inches. Pocatello is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.8 °F | 33.5 °F | 1.03 in. |
| February | 19.7 °F | 38.5 °F | 0.95 in. |
| March | 27.2 °F | 49.7 °F | 1.33 in. |
| April | 32.3 °F | 58.9 °F | 1.31 in. |
| May | 39.9 °F | 68.6 °F | 1.5 in. |
| June | 46.3 °F | 78.2 °F | 1.1 in. |
| July | 52.8 °F | 88.9 °F | 0.58 in. |
| August | 51.3 °F | 87.7 °F | 0.72 in. |
| September | 43.1 °F | 77.5 °F | 1.04 in. |
| October | 33.3 °F | 62.6 °F | 1.1 in. |
| November | 24.3 °F | 46.1 °F | 0.91 in. |
| December | 17.2 °F | 34.3 °F | 1.26 in. |
| Annual | 33.7 °F | 60.4 °F | 12.83 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |