Glendale, Utah has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 35.8 °F (low) to 66.9 °F (high). Annual precipitation averages 16.5 Inches. Glendale is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.4 °F | 45.5 °F | 1.94 in. |
| February | 22.6 °F | 48.7 °F | 2.03 in. |
| March | 27.5 °F | 55.8 °F | 1.75 in. |
| April | 32.3 °F | 64.4 °F | 1.01 in. |
| May | 39.9 °F | 73.8 °F | 0.86 in. |
| June | 48.2 °F | 85.3 °F | 0.37 in. |
| July | 55.6 °F | 90.6 °F | 1.04 in. |
| August | 54.6 °F | 88.4 °F | 1.47 in. |
| September | 47.0 °F | 81.2 °F | 1.47 in. |
| October | 36.3 °F | 69.1 °F | 1.57 in. |
| November | 26.6 °F | 55.0 °F | 1.18 in. |
| December | 19.4 °F | 44.9 °F | 1.79 in. |
| Annual | 35.8 °F | 66.9 °F | 16.48 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |