Rio Linda, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 9.4 °C (low) to 23.6 °C (high). Annual precipitation averages 542.3 Millimeters. Rio Linda is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.9 °C | 12.9 °C | 100.84 mm |
| February | 5.2 °C | 15.8 °C | 97.79 mm |
| March | 6.8 °C | 18.7 °C | 78.99 mm |
| April | 8.2 °C | 22.1 °C | 42.16 mm |
| May | 11.2 °C | 26.7 °C | 28.96 mm |
| June | 13.8 °C | 30.9 °C | 5.33 mm |
| July | 15.4 °C | 33.9 °C | 0.25 mm |
| August | 15 °C | 33.4 °C | 0.76 mm |
| September | 13.6 °C | 31.4 °C | 3.05 mm |
| October | 10.1 °C | 25.8 °C | 28.96 mm |
| November | 5.9 °C | 18.1 °C | 51.56 mm |
| December | 3.7 °C | 13.2 °C | 103.63 mm |
| Annual | 9.4 °C | 23.6 °C | 542.28 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°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 |