January weather in Clearlake, CA
The average temperature in Clearlake in January is 43.7°F (32.6°F–54.8°F). Average precipitation: 6.19 inches. Average snowfall is 0.2 inches.
January is a winter month in Clearlake, and is cooler than the annual average of 56.9°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 9h 33m. For travel, January is a wet month.
Avg High
54.8°F
Avg Low
32.6°F
Precipitation
6.19 in
Snow
0.2 in
January records in Clearlake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 63.0°F (1964) | 15.1°F (1991) | 4.43 in (1997) |
| January 2 | 73.0°F (1996) | 15.1°F (1960) | 2.26 in (2002) |
| January 3 | 73.0°F (1999) | 16.0°F (1970) | 1.19 in (1965) |
| January 4 | 70.0°F (2014) | 17.1°F (1961) | 3.00 in (1959) |
| January 5 | 71.1°F (1984) | 8.1°F (1974) | 1.60 in (1965) |
| January 6 | 71.1°F (1984) | 15.1°F (1968) | 1.45 in (1965) |
| January 7 | 69.1°F (2003) | 14.0°F (1973) | 2.62 in (1995) |
| January 8 | 66.0°F (1997) | 12.0°F (1974) | 3.41 in (1995) |
| January 9 | 73.9°F (2000) | 10.9°F (1974) | 6.47 in (1995) |
| January 10 | 73.0°F (2015) | 12.0°F (1974) | 0.94 in (2003) |
| January 11 | 69.1°F (2025) | 18.0°F (1968) | 1.87 in (1979) |
| January 12 | 73.9°F (1983) | 18.0°F (1968) | 1.62 in (1995) |
| January 13 | 68.0°F (1996) | 18.0°F (2013) | 2.41 in (1990) |
| January 14 | 70.0°F (2018) | 17.1°F (1962) | 1.83 in (1978) |
| January 15 | 70.0°F (2026) | 18.0°F (1962) | 2.22 in (1978) |
| January 16 | 80.1°F (2014) | 16.0°F (2007) | 2.15 in (2019) |
| January 17 | 78.1°F (2014) | 17.1°F (1962) | 1.62 in (2019) |
| January 18 | 75.0°F (2014) | 17.1°F (1963) | 2.01 in (1973) |
| January 19 | 73.0°F (2014) | 15.1°F (2012) | 2.51 in (2017) |
| January 20 | 71.1°F (2011) | 15.1°F (1963) | 2.10 in (1969) |
| January 21 | 73.9°F (2014) | 16.0°F (1966) | 1.65 in (1964) |
| January 22 | 71.1°F (1975) | 19.0°F (1963) | 1.69 in (2017) |
| January 23 | 81.0°F (2021) | 19.0°F (1963) | 2.27 in (1997) |
| January 24 | 75.0°F (2014) | 19.9°F (1957) | 2.64 in (1983) |
| January 25 | 79.0°F (2015) | 18.0°F (1976) | 2.64 in (1997) |
| January 26 | 73.0°F (2014) | 16.0°F (1957) | 1.66 in (1961) |
| January 27 | 71.1°F (2014) | 16.0°F (1963) | 4.16 in (1983) |
| January 28 | 79.0°F (2015) | 15.1°F (1975) | 1.14 in (1981) |
| January 29 | 75.9°F (1989) | 15.1°F (1979) | 2.60 in (1968) |
| January 30 | 75.0°F (1989) | 12.9°F (1975) | 2.35 in (1968) |
| January 31 | 72.0°F (2015) | 15.1°F (1975) | 2.21 in (1963) |