January weather in Martinez, CA
The average temperature in Martinez in January is 45.6°F (35.0°F–56.1°F). Average precipitation: 3.86 inches.
January is a winter month in Martinez, and is cooler than the annual average of 58.2°F. Daily temperatures swing about 21.1°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 38m. For travel, January is cool.
Avg High
56.1°F
Avg Low
35.0°F
Precipitation
3.86 in
Daylight
9h 38m
January records in Martinez
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 64.9°F (1996) | 24.1°F (2016) | 1.68 in (1997) |
| January 2 | 63.0°F (2018) | 26.1°F (1976) | 1.69 in (1997) |
| January 3 | 64.9°F (2014) | 24.1°F (2004) | 0.96 in (1977) |
| January 4 | 64.0°F (2012) | 19.9°F (2009) | 1.59 in (1982) |
| January 5 | 68.0°F (2014) | 25.0°F (1972) | 4.38 in (1982) |
| January 6 | 64.9°F (2014) | 28.0°F (1973) | 1.12 in (1978) |
| January 7 | 72.0°F (2012) | 27.0°F (1973) | 1.39 in (1993) |
| January 8 | 64.9°F (1990) | 30.0°F (1972) | 0.79 in (2017) |
| January 9 | 64.9°F (1983) | 28.0°F (2009) | 1.90 in (2018) |
| January 10 | 66.0°F (1996) | 28.0°F (2009) | 2.05 in (1995) |
| January 11 | 64.0°F (1980) | 26.1°F (2009) | 2.50 in (2017) |
| January 12 | 73.9°F (2009) | 25.0°F (2007) | 1.17 in (1973) |
| January 13 | 68.0°F (2009) | 19.9°F (2007) | 3.05 in (1993) |
| January 14 | 64.9°F (1980) | 21.9°F (2007) | 0.98 in (1980) |
| January 15 | 69.1°F (1974) | 23.0°F (2007) | 1.22 in (1978) |
| January 16 | 69.1°F (1974) | 24.1°F (2007) | 1.42 in (1973) |
| January 17 | 69.1°F (1998) | 23.0°F (2012) | 1.80 in (2019) |
| January 18 | 70.0°F (1976) | 25.0°F (2012) | 2.02 in (1973) |
| January 19 | 70.0°F (1976) | 25.0°F (2012) | 1.63 in (2010) |
| January 20 | 68.0°F (1976) | 28.0°F (2014) | 1.13 in (2010) |
| January 21 | 68.0°F (1976) | 28.0°F (2014) | 1.73 in (2012) |
| January 22 | 70.0°F (2014) | 28.9°F (2014) | 0.91 in (2010) |
| January 23 | 71.1°F (1974) | 28.0°F (2007) | 0.92 in (1981) |
| January 24 | 69.1°F (1974) | 28.9°F (1972) | 2.97 in (2000) |
| January 25 | 70.0°F (2014) | 28.9°F (1972) | 1.59 in (1997) |
| January 26 | 72.0°F (2014) | 28.9°F (2009) | 1.47 in (2008) |
| January 27 | 66.9°F (2014) | 27.0°F (2009) | 1.68 in (1983) |
| January 28 | 68.0°F (1984) | 27.0°F (1975) | 1.38 in (1981) |
| January 29 | 66.9°F (2014) | 26.1°F (2002) | 1.00 in (1998) |
| January 30 | 71.1°F (1976) | 26.1°F (1975) | 1.05 in (1986) |
| January 31 | 71.1°F (1976) | 28.9°F (2002) | 1.30 in (1996) |