Nile, Washington has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 1.7 °C (low) to 14.8 °C (high). Annual precipitation averages 419.1 Millimeters. Nile is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.6 °C | 2.2 °C | 69.85 mm |
| February | -4.6 °C | 5.6 °C | 46.74 mm |
| March | -2.4 °C | 9.6 °C | 37.59 mm |
| April | 0.6 °C | 14.1 °C | 27.94 mm |
| May | 4.6 °C | 19.3 °C | 25.4 mm |
| June | 7.9 °C | 22.9 °C | 18.03 mm |
| July | 10.8 °C | 28.3 °C | 9.4 mm |
| August | 10.4 °C | 28.2 °C | 7.62 mm |
| September | 6.3 °C | 23.4 °C | 11.43 mm |
| October | 1.3 °C | 15.3 °C | 38.86 mm |
| November | -2.8 °C | 6.9 °C | 50.29 mm |
| December | -5.8 °C | 1.7 °C | 75.95 mm |
| Annual | 1.7 °C | 14.8 °C | 419.1 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 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 | Dsb - Humid Continental Climate - Dry Cool Summer |