Plumas Eureka, California has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 1.2 °C (low) to 18.2 °C (high). Annual precipitation averages 1019.6 Millimeters. Plumas Eureka is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.8 °C | 7.4 °C | 184.91 mm |
| February | -3.8 °C | 9.6 °C | 167.39 mm |
| March | -1.8 °C | 12.6 °C | 150.88 mm |
| April | -0.1 °C | 15.5 °C | 76.2 mm |
| May | 3.1 °C | 20.3 °C | 53.34 mm |
| June | 6.3 °C | 25.8 °C | 19.81 mm |
| July | 9.2 °C | 30.5 °C | 3.56 mm |
| August | 8.2 °C | 30.2 °C | 4.57 mm |
| September | 5.1 °C | 27.2 °C | 14.73 mm |
| October | 0.8 °C | 20.3 °C | 52.07 mm |
| November | -2.6 °C | 12.1 °C | 94.23 mm |
| December | -4.9 °C | 6.7 °C | 197.87 mm |
| Annual | 1.2 °C | 18.2 °C | 1019.56 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |