Reubens, Idaho has a Humid Continental Climate - Dry Warm Summer climate (Köppen classification: Dsa). Average annual temperatures range from 35 °F (low) to 56.8 °F (high). Annual precipitation averages 22.9 Inches. Reubens is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.1 °F | 36.7 °F | 2.11 in. |
| February | 24.0 °F | 40.5 °F | 1.64 in. |
| March | 28.1 °F | 46.9 °F | 2.44 in. |
| April | 32.7 °F | 54.0 °F | 2.62 in. |
| May | 39.2 °F | 62.7 °F | 2.75 in. |
| June | 44.5 °F | 69.2 °F | 2.21 in. |
| July | 50.4 °F | 80.8 °F | 0.95 in. |
| August | 50.0 °F | 81.7 °F | 0.78 in. |
| September | 43.3 °F | 72.1 °F | 1.01 in. |
| October | 35.2 °F | 57.7 °F | 1.74 in. |
| November | 27.7 °F | 43.6 °F | 2.44 in. |
| December | 22.0 °F | 35.6 °F | 2.22 in. |
| Annual | 35 °F | 56.8 °F | 22.91 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dsa - Humid Continental Climate - Dry Warm Summer |