Tyhee, Idaho has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 33.5 °F (low) to 60 °F (high). Annual precipitation averages 11.5 Inches. Tyhee 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 | 16.7 °F | 33.3 °F | 0.95 in. |
| February | 19.5 °F | 38.3 °F | 0.86 in. |
| March | 27.2 °F | 49.6 °F | 1.18 in. |
| April | 32.2 °F | 58.5 °F | 1.23 in. |
| May | 39.8 °F | 68.0 °F | 1.36 in. |
| June | 46.2 °F | 77.5 °F | 0.96 in. |
| July | 52.4 °F | 88.2 °F | 0.56 in. |
| August | 51.0 °F | 87.3 °F | 0.72 in. |
| September | 42.9 °F | 77.0 °F | 0.93 in. |
| October | 33.2 °F | 62.0 °F | 0.92 in. |
| November | 24.2 °F | 46.0 °F | 0.86 in. |
| December | 17.0 °F | 34.0 °F | 0.97 in. |
| Annual | 33.5 °F | 60 °F | 11.5 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| 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 | BSk - Cold Semi-Arid Climate |