Reubens, Idaho has a Humid Continental Climate - Dry Warm Summer climate (Köppen classification: Dsa). Average annual temperatures range from 1.7 °C (low) to 13.8 °C (high). Annual precipitation averages 581.9 Millimeters. 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 | -4.9 °C | 2.6 °C | 53.59 mm |
| February | -4.4 °C | 4.7 °C | 41.66 mm |
| March | -2.2 °C | 8.3 °C | 61.98 mm |
| April | 0.4 °C | 12.2 °C | 66.55 mm |
| May | 4 °C | 17.1 °C | 69.85 mm |
| June | 6.9 °C | 20.7 °C | 56.13 mm |
| July | 10.2 °C | 27.1 °C | 24.13 mm |
| August | 10 °C | 27.6 °C | 19.81 mm |
| September | 6.3 °C | 22.3 °C | 25.65 mm |
| October | 1.8 °C | 14.3 °C | 44.2 mm |
| November | -2.4 °C | 6.4 °C | 61.98 mm |
| December | -5.6 °C | 2 °C | 56.39 mm |
| Annual | 1.7 °C | 13.8 °C | 581.92 mm |
| 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 : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dsa - Humid Continental Climate - Dry Warm Summer |