December weather in Santa Clara, CA
The average temperature in Santa Clara in December is 50.6°F (41.7°F–59.5°F). Average precipitation: 2.29 inches.
December is a winter month in Santa Clara, and is cooler than the annual average of 60.7°F. Daily temperatures swing about 17.8°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 26m. For travel, December is a comfortable month to visit.
Avg High
59.5°F
Avg Low
41.7°F
Precipitation
2.29 in
Daylight
9h 26m
December records in Santa Clara
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 75.0°F (2021) | 33.1°F (2004) | 0.61 in (2005) |
| December 2 | 71.1°F (2011) | 34.0°F (2004) | 1.20 in (2014) |
| December 3 | 71.1°F (2024) | 32.0°F (2004) | 1.28 in (2014) |
| December 4 | 70.0°F (2024) | 32.0°F (2004) | 0.46 in (2019) |
| December 5 | 71.1°F (2023) | 29.1°F (2013) | 0.38 in (2012) |
| December 6 | 73.0°F (2024) | 30.2°F (2013) | 0.15 in (2007) |
| December 7 | 73.9°F (2020) | 33.1°F (1998) | 0.44 in (2009) |
| December 8 | 73.9°F (2020) | 28.9°F (2009) | 0.33 in (2004) |
| December 9 | 71.1°F (2015) | 25.2°F (2013) | 0.54 in (2006) |
| December 10 | 70.0°F (2017) | 28.2°F (2013) | 0.51 in (2003) |
| December 11 | 69.1°F (2017) | 31.1°F (2013) | 3.23 in (2014) |
| December 12 | 70.0°F (2019) | 29.1°F (2013) | 0.49 in (2024) |
| December 13 | 66.9°F (2006) | 33.1°F (2007) | 2.23 in (2021) |
| December 14 | 69.1°F (2017) | 34.0°F (2007) | 1.24 in (2002) |
| December 15 | 68.0°F (1998) | 31.1°F (2013) | 0.65 in (2014) |
| December 16 | 72.0°F (1998) | 34.0°F (1999) | 1.05 in (2002) |
| December 17 | 71.1°F (2025) | 33.1°F (2016) | 0.42 in (2002) |
| December 18 | 66.9°F (1998) | 30.2°F (2016) | 1.02 in (2005) |
| December 19 | 70.0°F (1999) | 30.2°F (2016) | 1.02 in (2002) |
| December 20 | 75.0°F (1999) | 33.1°F (2006) | 0.74 in (2023) |
| December 21 | 72.0°F (1999) | 27.0°F (1998) | 0.49 in (2015) |
| December 22 | 69.1°F (2024) | 27.0°F (1998) | 0.49 in (2012) |
| December 23 | 73.9°F (2024) | 25.0°F (1998) | 1.17 in (2012) |
| December 24 | 70.0°F (2013) | 24.1°F (1998) | 0.53 in (2021) |
| December 25 | 66.9°F (2013) | 28.0°F (1998) | 0.61 in (2025) |
| December 26 | 69.1°F (2006) | 30.9°F (1998) | 0.36 in (2012) |
| December 27 | 66.0°F (2024) | 30.2°F (2015) | 1.13 in (2022) |
| December 28 | 72.0°F (2023) | 33.1°F (2016) | 0.65 in (2002) |
| December 29 | 71.1°F (2023) | 33.1°F (2006) | 0.78 in (2003) |
| December 30 | 66.0°F (2013) | 32.0°F (2015) | 0.72 in (2004) |
| December 31 | 64.0°F (2001) | 33.1°F (2012) | 1.14 in (2022) |