Interlaken, Utah has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 32.3 °F (low) to 59.6 °F (high). Annual precipitation averages 20.4 Inches. Interlaken is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.7 °F | 35.9 °F | 2.92 in. |
| February | 17.9 °F | 39.5 °F | 2.66 in. |
| March | 24.6 °F | 48.7 °F | 1.62 in. |
| April | 30.4 °F | 56.2 °F | 1.57 in. |
| May | 37.8 °F | 66.4 °F | 1.78 in. |
| June | 44.3 °F | 77.4 °F | 0.94 in. |
| July | 51.9 °F | 86.5 °F | 0.66 in. |
| August | 51.2 °F | 84.5 °F | 0.99 in. |
| September | 42.5 °F | 75.3 °F | 1.35 in. |
| October | 32.6 °F | 61.8 °F | 1.65 in. |
| November | 23.7 °F | 46.6 °F | 1.76 in. |
| December | 15.9 °F | 35.8 °F | 2.49 in. |
| Annual | 32.3 °F | 59.6 °F | 20.39 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Severe Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |