Butte Falls, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 38.2 °F (low) to 64.2 °F (high). Annual precipitation averages 36.2 Inches. Butte Falls is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.3 °F | 46.8 °F | 4.92 in. |
| February | 30.0 °F | 50.5 °F | 4.01 in. |
| March | 32.1 °F | 54.5 °F | 3.81 in. |
| April | 35.0 °F | 59.1 °F | 3.28 in. |
| May | 40.7 °F | 67.9 °F | 2.61 in. |
| June | 45.1 °F | 75.5 °F | 1.51 in. |
| July | 51.3 °F | 86.1 °F | 0.6 in. |
| August | 50.2 °F | 86.3 °F | 0.46 in. |
| September | 44.7 °F | 80.0 °F | 0.75 in. |
| October | 37.7 °F | 66.2 °F | 2.78 in. |
| November | 33.0 °F | 52.3 °F | 5.09 in. |
| December | 29.2 °F | 45.1 °F | 6.35 in. |
| Annual | 38.2 °F | 64.2 °F | 36.17 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |