Spanish Fork, Utah has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.9 °F (low) to 64.6 °F (high). Annual precipitation averages 16.6 Inches. Spanish Fork is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.3 °F | 38.0 °F | 1.58 in. |
| February | 24.4 °F | 44.5 °F | 1.43 in. |
| March | 31.6 °F | 55.3 °F | 1.36 in. |
| April | 37.0 °F | 62.8 °F | 1.83 in. |
| May | 44.4 °F | 72.5 °F | 2.08 in. |
| June | 51.6 °F | 84.0 °F | 0.72 in. |
| July | 59.9 °F | 92.3 °F | 0.58 in. |
| August | 58.9 °F | 90.3 °F | 0.7 in. |
| September | 49.5 °F | 80.5 °F | 1.47 in. |
| October | 38.3 °F | 66.1 °F | 1.87 in. |
| November | 29.3 °F | 50.5 °F | 1.46 in. |
| December | 21.6 °F | 38.5 °F | 1.47 in. |
| Annual | 38.9 °F | 64.6 °F | 16.55 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |