Lacomb, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 5.8 °C (low) to 16.9 °C (high). Annual precipitation averages 1256.5 Millimeters. Lacomb is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.4 °C | 8.2 °C | 160.02 mm |
| February | 1.6 °C | 10.2 °C | 126.75 mm |
| March | 2.8 °C | 12.6 °C | 143 mm |
| April | 4.4 °C | 15.2 °C | 121.16 mm |
| May | 7.1 °C | 19 °C | 94.74 mm |
| June | 9.5 °C | 21.9 °C | 60.96 mm |
| July | 11.5 °C | 27.2 °C | 14.73 mm |
| August | 11.4 °C | 27.7 °C | 12.95 mm |
| September | 9.2 °C | 24.3 °C | 51.56 mm |
| October | 6.3 °C | 17.4 °C | 107.19 mm |
| November | 3.4 °C | 11 °C | 175.26 mm |
| December | 1.3 °C | 7.6 °C | 188.21 mm |
| Annual | 5.8 °C | 16.9 °C | 1256.53 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |