Long Creek, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 0.4 °C (low) to 15.7 °C (high). Annual precipitation averages 431.8 Millimeters. Long Creek 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 Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.5 °C | 4.7 °C | 41.66 mm |
| February | -5.1 °C | 6.4 °C | 33.02 mm |
| March | -3 °C | 10 °C | 42.67 mm |
| April | -0.8 °C | 13.3 °C | 49.28 mm |
| May | 2.6 °C | 18.3 °C | 56.13 mm |
| June | 5.3 °C | 22.9 °C | 37.08 mm |
| July | 8.1 °C | 29.4 °C | 14.73 mm |
| August | 7.3 °C | 29.3 °C | 14.73 mm |
| September | 4.2 °C | 24.4 °C | 15.49 mm |
| October | 0.2 °C | 16.6 °C | 38.35 mm |
| November | -2.9 °C | 8.7 °C | 43.43 mm |
| December | -5.9 °C | 3.9 °C | 45.21 mm |
| Annual | 0.4 °C | 15.7 °C | 431.78 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| 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 | Extreme Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |