Trinity Village, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 6.5 °C (low) to 22 °C (high). Annual precipitation averages 1240.5 Millimeters. Trinity Village is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.3 °C | 10.7 °C | 232.16 mm |
| February | 2.8 °C | 13.7 °C | 178.82 mm |
| March | 3.7 °C | 16.9 °C | 168.4 mm |
| April | 5 °C | 20.2 °C | 90.93 mm |
| May | 7.4 °C | 25.1 °C | 48.51 mm |
| June | 9.8 °C | 29.3 °C | 19.56 mm |
| July | 12.6 °C | 34.3 °C | 5.84 mm |
| August | 11.9 °C | 34.5 °C | 4.83 mm |
| September | 9.6 °C | 31.6 °C | 13.97 mm |
| October | 6.6 °C | 23.3 °C | 60.45 mm |
| November | 4.3 °C | 14.7 °C | 149.61 mm |
| December | 2.3 °C | 9.8 °C | 267.46 mm |
| Annual | 6.5 °C | 22 °C | 1240.54 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |