January weather in Walnut Creek, CA
The average temperature in Walnut Creek in January is 50.1°F (41.7°F–58.4°F). Average precipitation: 3.46 inches.
January is a winter month in Walnut Creek, and is cooler than the annual average of 62.4°F. Daily temperatures swing about 16.7°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 39m. For travel, January is a comfortable month to visit.
Avg High
58.4°F
Avg Low
41.7°F
Precipitation
3.46 in
Daylight
9h 39m
January records in Walnut Creek
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 68.0°F (1997) | 32.0°F (2007) | 2.05 in (1997) |
| January 2 | 64.9°F (1996) | 30.0°F (2015) | 1.12 in (1997) |
| January 3 | 64.9°F (2014) | 28.9°F (1993) | 0.38 in (1995) |
| January 4 | 68.0°F (2014) | 28.0°F (1993) | 3.24 in (2008) |
| January 5 | 66.9°F (2003) | 30.9°F (1993) | 0.90 in (1992) |
| January 6 | 66.9°F (2012) | 30.9°F (2017) | 1.11 in (2019) |
| January 7 | 66.9°F (2012) | 34.0°F (1999) | 1.04 in (1993) |
| January 8 | 66.9°F (2012) | 33.1°F (1999) | 1.66 in (2017) |
| January 9 | 66.9°F (2012) | 33.1°F (1999) | 1.15 in (2018) |
| January 10 | 66.0°F (1996) | 28.9°F (2011) | 2.80 in (1995) |
| January 11 | 64.9°F (1996) | 30.0°F (1993) | 1.20 in (2017) |
| January 12 | 73.9°F (2009) | 28.9°F (2007) | 1.00 in (1998) |
| January 13 | 66.9°F (2009) | 26.1°F (2007) | 2.04 in (1993) |
| January 14 | 66.0°F (2014) | 26.1°F (2007) | 0.52 in (1998) |
| January 15 | 71.1°F (2009) | 26.1°F (2007) | 0.83 in (1998) |
| January 16 | 71.1°F (2009) | 28.0°F (2007) | 1.04 in (1996) |
| January 17 | 70.0°F (2014) | 30.0°F (2013) | 1.23 in (2019) |
| January 18 | 68.0°F (2009) | 30.9°F (2007) | 1.12 in (2016) |
| January 19 | 68.0°F (2014) | 30.0°F (2013) | 1.68 in (2010) |
| January 20 | 68.0°F (2009) | 32.0°F (2002) | 1.38 in (2010) |
| January 21 | 70.0°F (2014) | 33.1°F (2013) | 1.58 in (2012) |
| January 22 | 70.0°F (2014) | 35.1°F (2002) | 0.82 in (2009) |
| January 23 | 69.1°F (2011) | 30.9°F (2002) | 0.88 in (2000) |
| January 24 | 71.1°F (2014) | 32.0°F (1999) | 1.12 in (2000) |
| January 25 | 73.0°F (2014) | 33.1°F (2002) | 1.60 in (1997) |
| January 26 | 72.0°F (2014) | 33.1°F (1993) | 0.95 in (1997) |
| January 27 | 66.9°F (2012) | 33.1°F (1993) | 1.16 in (1995) |
| January 28 | 68.0°F (2014) | 34.0°F (2009) | 0.70 in (2005) |
| January 29 | 66.9°F (2015) | 34.0°F (1994) | 0.99 in (1998) |
| January 30 | 69.1°F (2015) | 30.0°F (2002) | 0.61 in (1995) |
| January 31 | 75.9°F (2015) | 30.0°F (2002) | 1.35 in (1996) |