Canyon Lake, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 9.8 °C (low) to 26.9 °C (high). Annual precipitation averages 325.9 Millimeters. Canyon Lake is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.7 °C | 19.3 °C | 80.01 mm |
| February | 4.9 °C | 19.6 °C | 85.6 mm |
| March | 6.6 °C | 21.4 °C | 44.45 mm |
| April | 8.1 °C | 24.5 °C | 17.02 mm |
| May | 11.1 °C | 27.7 °C | 7.37 mm |
| June | 13.2 °C | 32 °C | 1.02 mm |
| July | 16.2 °C | 35.8 °C | 1.52 mm |
| August | 16.6 °C | 36.6 °C | 1.78 mm |
| September | 14.8 °C | 34.2 °C | 3.3 mm |
| October | 10.9 °C | 28.7 °C | 12.19 mm |
| November | 6.7 °C | 23.4 °C | 18.29 mm |
| December | 3.9 °C | 19 °C | 53.34 mm |
| Annual | 9.8 °C | 26.9 °C | 325.89 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |