Lincoln, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 9.3 °C (low) to 24 °C (high). Annual precipitation averages 555.8 Millimeters. Lincoln is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.7 °C | 13.2 °C | 102.62 mm |
| February | 4.8 °C | 16 °C | 97.79 mm |
| March | 6.4 °C | 18.7 °C | 80.26 mm |
| April | 7.8 °C | 22 °C | 48.01 mm |
| May | 11 °C | 26.8 °C | 27.43 mm |
| June | 14.1 °C | 31.7 °C | 6.6 mm |
| July | 16.3 °C | 35.2 °C | 0.25 mm |
| August | 15.7 °C | 34.6 °C | 1.02 mm |
| September | 13.7 °C | 31.8 °C | 4.06 mm |
| October | 9.7 °C | 26.1 °C | 27.43 mm |
| November | 5.6 °C | 18.2 °C | 55.12 mm |
| December | 3.3 °C | 13.3 °C | 105.16 mm |
| Annual | 9.3 °C | 24 °C | 555.75 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |