January weather in Coulee Dam, WA
The average temperature in Coulee Dam in January is 28.0°F (23.3°F–32.7°F). Average precipitation: 1.15 inches.
January is a winter month in Coulee Dam, and is cooler than the annual average of 49.9°F. Daily temperatures swing about 9.4°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 8h 35m. For travel, January is cold.
Avg High
32.7°F
Avg Low
23.3°F
Precipitation
1.15 in
Daylight
8h 35m
January records in Coulee Dam
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 51.1°F (1939) | -8.0°F (1952) | 0.58 in (1944) |
| January 2 | 48.9°F (1939) | -6.0°F (1993) | 0.35 in (1992) |
| January 3 | 46.9°F (1989) | -9.9°F (1950) | 0.36 in (1956) |
| January 4 | 46.9°F (2020) | -6.0°F (1950) | 0.41 in (2026) |
| January 5 | 51.1°F (1954) | -5.1°F (1979) | 0.38 in (1966) |
| January 6 | 46.9°F (1990) | -7.1°F (1993) | 0.44 in (2022) |
| January 7 | 54.0°F (1945) | -9.9°F (1979) | 0.39 in (2013) |
| January 8 | 51.1°F (2002) | -6.0°F (1979) | 0.45 in (1978) |
| January 9 | 51.1°F (1953) | -2.9°F (1974) | 0.40 in (1970) |
| January 10 | 50.0°F (2006) | -9.0°F (1949) | 0.40 in (2020) |
| January 11 | 48.9°F (2014) | -2.0°F (1937) | 0.53 in (1957) |
| January 12 | 48.9°F (1936) | -6.0°F (2024) | 0.65 in (2021) |
| January 13 | 53.1°F (2014) | -9.0°F (2024) | 0.50 in (2023) |
| January 14 | 52.0°F (1999) | -9.9°F (1950) | 0.63 in (1938) |
| January 15 | 50.0°F (1961) | -11.0°F (1950) | 0.55 in (1971) |
| January 16 | 51.1°F (1999) | -8.0°F (1950) | 0.41 in (2000) |
| January 17 | 50.0°F (1976) | -11.9°F (1950) | 0.86 in (1945) |
| January 18 | 51.1°F (1989) | -16.1°F (1950) | 0.40 in (2015) |
| January 19 | 48.0°F (1968) | -7.1°F (1962) | 0.23 in (1993) |
| January 20 | 48.0°F (1968) | -9.9°F (1935) | 0.33 in (1953) |
| January 21 | 48.0°F (1972) | -2.9°F (1937) | 0.32 in (1970) |
| January 22 | 61.0°F (1981) | -14.1°F (1943) | 0.30 in (2003) |
| January 23 | 48.0°F (1970) | -9.9°F (1969) | 0.70 in (1986) |
| January 24 | 50.0°F (1935) | -11.9°F (1957) | 0.56 in (1959) |
| January 25 | 52.0°F (1935) | -13.0°F (1950) | 0.17 in (1941) |
| January 26 | 53.1°F (2003) | -15.0°F (1957) | 0.48 in (1969) |
| January 27 | 50.0°F (1983) | -11.0°F (1957) | 0.42 in (1967) |
| January 28 | 51.1°F (1992) | -9.9°F (1969) | 0.31 in (2006) |
| January 29 | 53.1°F (1967) | -11.9°F (1950) | 0.30 in (1968) |
| January 30 | 55.0°F (1971) | -17.0°F (1950) | 0.38 in (1952) |
| January 31 | 57.0°F (1971) | -13.0°F (1937) | 0.54 in (1955) |