South Lake Tahoe, California has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from -1 °C (low) to 15.1 °C (high). Annual precipitation averages 607.3 Millimeters. South Lake Tahoe is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.9 °C | 6 °C | 104.39 mm |
| February | -6.6 °C | 6.7 °C | 102.11 mm |
| March | -4.7 °C | 9.2 °C | 83.82 mm |
| April | -2.9 °C | 11.9 °C | 39.37 mm |
| May | 0.4 °C | 16.7 °C | 28.19 mm |
| June | 3.7 °C | 22.3 °C | 12.95 mm |
| July | 6.9 °C | 26.9 °C | 6.86 mm |
| August | 6.3 °C | 26.5 °C | 8.13 mm |
| September | 3.8 °C | 22.9 °C | 8.89 mm |
| October | -0.4 °C | 16.7 °C | 37.08 mm |
| November | -4.2 °C | 10.1 °C | 53.09 mm |
| December | -6.8 °C | 5.8 °C | 122.43 mm |
| Annual | -1 °C | 15.1 °C | 607.31 mm |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |