January weather in Cosmopolis, WA
The average temperature in Cosmopolis in January is 42.5°F (37.3°F–47.8°F). Average precipitation: 13.93 inches.
January is a winter month in Cosmopolis, and is cooler than the annual average of 51.3°F. Daily temperatures swing about 10.5°F between overnight low and afternoon high. Expect about 22 days with precipitation. Daylight averages about 8h 43m. For travel, January is a wet month.
Avg High
47.8°F
Avg Low
37.3°F
Precipitation
13.93 in
Daylight
8h 43m
January records in Cosmopolis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 57.9°F (1997) | 10.9°F (1924) | 3.11 in (1939) |
| January 2 | 57.9°F (1946) | 17.1°F (1910) | 3.56 in (2003) |
| January 3 | 55.9°F (1918) | 18.0°F (1950) | 3.25 in (2021) |
| January 4 | 57.0°F (1898) | 17.1°F (1910) | 3.46 in (2021) |
| January 5 | 57.0°F (1918) | 18.0°F (1916) | 8.57 in (2015) |
| January 6 | 55.0°F (1896) | 14.0°F (1937) | 3.32 in (2022) |
| January 7 | 57.9°F (2003) | 15.1°F (1937) | 4.91 in (2022) |
| January 8 | 57.9°F (1928) | 16.0°F (1909) | 4.04 in (2009) |
| January 9 | 60.1°F (1941) | 16.0°F (1909) | 2.75 in (2013) |
| January 10 | 60.1°F (1941) | 12.9°F (1930) | 2.79 in (2006) |
| January 11 | 57.0°F (1895) | 14.0°F (1916) | 3.35 in (1972) |
| January 12 | 57.0°F (1900) | 8.1°F (1909) | 3.67 in (2021) |
| January 13 | 57.9°F (2019) | 12.0°F (1909) | 2.47 in (2006) |
| January 14 | 55.9°F (1901) | 6.1°F (1950) | 2.22 in (1988) |
| January 15 | 60.1°F (2018) | 10.0°F (1950) | 2.69 in (1976) |
| January 16 | 57.0°F (1899) | 10.0°F (1950) | 3.38 in (2011) |
| January 17 | 57.9°F (1900) | 16.0°F (1943) | 3.73 in (1941) |
| January 18 | 59.0°F (1919) | 9.0°F (1935) | 4.22 in (2005) |
| January 19 | 61.0°F (1900) | 10.9°F (1930) | 2.70 in (1986) |
| January 20 | 61.0°F (2005) | 12.9°F (1930) | 3.38 in (1935) |
| January 21 | 63.0°F (1961) | 15.1°F (1962) | 5.25 in (1935) |
| January 22 | 60.1°F (1961) | 9.0°F (1943) | 3.43 in (2016) |
| January 23 | 57.0°F (1919) | 17.1°F (1969) | 4.54 in (1953) |
| January 24 | 60.1°F (1935) | 14.0°F (1930) | 3.26 in (1984) |
| January 25 | 57.9°F (2014) | 12.0°F (1902) | 2.93 in (1964) |
| January 26 | 62.1°F (2015) | 14.0°F (1957) | 3.20 in (1971) |
| January 27 | 60.1°F (2015) | 14.0°F (1957) | 2.23 in (1965) |
| January 28 | 64.0°F (1931) | 14.0°F (1972) | 2.60 in (2016) |
| January 29 | 63.0°F (1931) | 12.9°F (1916) | 3.46 in (1960) |
| January 30 | 66.0°F (1940) | 15.1°F (1980) | 4.82 in (2006) |
| January 31 | 64.9°F (1935) | 9.0°F (1950) | 2.95 in (1930) |