Inkom, Idaho has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.4 °F (low) to 59.3 °F (high). Annual precipitation averages 14.6 Inches. Inkom is located in USDA Plant Hardiness Zone 6a. 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 | 15.2 °F | 32.9 °F | 1.51 in. |
| February | 18.2 °F | 37.7 °F | 1.17 in. |
| March | 25.8 °F | 48.3 °F | 1.4 in. |
| April | 31.1 °F | 57.6 °F | 1.33 in. |
| May | 38.7 °F | 67.1 °F | 1.8 in. |
| June | 44.8 °F | 76.9 °F | 1.13 in. |
| July | 51.5 °F | 87.6 °F | 0.63 in. |
| August | 50.2 °F | 86.6 °F | 0.84 in. |
| September | 41.4 °F | 76.1 °F | 1.22 in. |
| October | 32.2 °F | 61.6 °F | 1.22 in. |
| November | 23.1 °F | 45.5 °F | 0.96 in. |
| December | 16.1 °F | 33.9 °F | 1.38 in. |
| Annual | 32.4 °F | 59.3 °F | 14.59 in. |
| 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 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 |