Truckee, California has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from -2.6 °C (low) to 15.5 °C (high). Annual precipitation averages 760.7 Millimeters. Truckee is located in USDA Plant Hardiness Zone 6a. 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 | -9.1 °C | 5.5 °C | 140.46 mm |
| February | -8.3 °C | 6.8 °C | 124.97 mm |
| March | -5.8 °C | 9.2 °C | 116.08 mm |
| April | -3.7 °C | 12.3 °C | 56.13 mm |
| May | -0.3 °C | 17.2 °C | 36.07 mm |
| June | 2.4 °C | 22.8 °C | 16 mm |
| July | 5.4 °C | 27.8 °C | 6.86 mm |
| August | 4.4 °C | 27.4 °C | 10.92 mm |
| September | 1.6 °C | 24 °C | 14.22 mm |
| October | -2.5 °C | 17.7 °C | 42.16 mm |
| November | -5.9 °C | 10.5 °C | 67.31 mm |
| December | -8.8 °C | 5 °C | 129.54 mm |
| Annual | -2.6 °C | 15.5 °C | 760.72 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 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |