Long Creek, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 32.7 °F (low) to 60.2 °F (high). Annual precipitation averages 17 Inches. 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 | 22.1 °F | 40.4 °F | 1.64 in. |
| February | 22.8 °F | 43.6 °F | 1.3 in. |
| March | 26.6 °F | 50.0 °F | 1.68 in. |
| April | 30.5 °F | 56.0 °F | 1.94 in. |
| May | 36.7 °F | 64.9 °F | 2.21 in. |
| June | 41.6 °F | 73.3 °F | 1.46 in. |
| July | 46.5 °F | 84.9 °F | 0.58 in. |
| August | 45.2 °F | 84.7 °F | 0.58 in. |
| September | 39.5 °F | 76.0 °F | 0.61 in. |
| October | 32.3 °F | 61.9 °F | 1.51 in. |
| November | 26.7 °F | 47.6 °F | 1.71 in. |
| December | 21.3 °F | 39.1 °F | 1.78 in. |
| Annual | 32.7 °F | 60.2 °F | 17 in. |
| 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 : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |