Lofall, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 43.1 °F (low) to 60.1 °F (high). Annual precipitation averages 39.8 Inches. Lofall is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.3 °F | 46.6 °F | 6.45 in. |
| February | 35.1 °F | 49.0 °F | 3.45 in. |
| March | 37.3 °F | 53.2 °F | 4.25 in. |
| April | 40.5 °F | 58.6 °F | 2.71 in. |
| May | 45.6 °F | 65.3 °F | 2.09 in. |
| June | 49.9 °F | 69.3 °F | 1.67 in. |
| July | 53.0 °F | 75.4 °F | 0.9 in. |
| August | 53.2 °F | 76.0 °F | 1.02 in. |
| September | 49.7 °F | 70.4 °F | 1.79 in. |
| October | 44.0 °F | 60.4 °F | 3.25 in. |
| November | 38.5 °F | 50.9 °F | 5.82 in. |
| December | 35.1 °F | 45.8 °F | 6.44 in. |
| Annual | 43.1 °F | 60.1 °F | 39.84 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |