Lacomb, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 42.5 °F (low) to 62.3 °F (high). Annual precipitation averages 49.5 Inches. 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 | 34.6 °F | 46.7 °F | 6.3 in. |
| February | 34.8 °F | 50.3 °F | 4.99 in. |
| March | 37.0 °F | 54.7 °F | 5.63 in. |
| April | 39.9 °F | 59.3 °F | 4.77 in. |
| May | 44.8 °F | 66.2 °F | 3.73 in. |
| June | 49.1 °F | 71.4 °F | 2.4 in. |
| July | 52.7 °F | 80.9 °F | 0.58 in. |
| August | 52.6 °F | 81.8 °F | 0.51 in. |
| September | 48.6 °F | 75.7 °F | 2.03 in. |
| October | 43.3 °F | 63.4 °F | 4.22 in. |
| November | 38.2 °F | 51.8 °F | 6.9 in. |
| December | 34.3 °F | 45.6 °F | 7.41 in. |
| Annual | 42.5 °F | 62.3 °F | 49.47 in. |
| 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 : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |