Oakley, Utah has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 29.5 °F (low) to 58.7 °F (high). Annual precipitation averages 16.8 Inches. Oakley is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.4 °F | 35.3 °F | 1.73 in. |
| February | 15.0 °F | 38.8 °F | 1.37 in. |
| March | 22.3 °F | 47.7 °F | 1.49 in. |
| April | 28.1 °F | 55.7 °F | 1.55 in. |
| May | 34.7 °F | 65.2 °F | 1.75 in. |
| June | 41.1 °F | 76.2 °F | 1.04 in. |
| July | 48.4 °F | 85.3 °F | 0.83 in. |
| August | 47.7 °F | 83.6 °F | 1.06 in. |
| September | 39.2 °F | 74.6 °F | 1.51 in. |
| October | 29.9 °F | 61.0 °F | 1.59 in. |
| November | 21.1 °F | 45.6 °F | 1.45 in. |
| December | 13.5 °F | 35.3 °F | 1.4 in. |
| Annual | 29.5 °F | 58.7 °F | 16.77 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |