January weather in Post Falls, ID
The average temperature in Post Falls in January is 31.2°F (26.2°F–36.2°F). Average precipitation: 3.21 inches.
January is a winter month in Post Falls, and is cooler than the annual average of 48.8°F. Daily temperatures swing about 10°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 8h 37m. For travel, January is cold.
Avg High
36.2°F
Avg Low
26.2°F
Precipitation
3.21 in
Daylight
8h 37m
January records in Post Falls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 60.1°F (1918) | -11.9°F (1924) | 0.78 in (2021) |
| January 2 | 53.1°F (1939) | -2.9°F (1942) | 1.22 in (1936) |
| January 3 | 51.1°F (2021) | -8.0°F (1949) | 1.12 in (1923) |
| January 4 | 48.9°F (1914) | -9.0°F (1924) | 3.50 in (1998) |
| January 5 | 55.0°F (2012) | -7.1°F (1979) | 0.74 in (1980) |
| January 6 | 53.1°F (1956) | -6.0°F (1937) | 1.28 in (1948) |
| January 7 | 55.9°F (1945) | -16.1°F (1937) | 1.40 in (2022) |
| January 8 | 55.9°F (1945) | -16.1°F (1937) | 0.68 in (1975) |
| January 9 | 55.9°F (1953) | -8.0°F (1909) | 0.69 in (2024) |
| January 10 | 52.0°F (1953) | -9.0°F (1949) | 1.38 in (2006) |
| January 11 | 53.1°F (1983) | -14.1°F (1909) | 1.23 in (2020) |
| January 12 | 52.0°F (1983) | -7.1°F (1963) | 0.70 in (1977) |
| January 13 | 52.0°F (1945) | -11.9°F (2024) | 1.15 in (1936) |
| January 14 | 52.0°F (2026) | -9.9°F (2024) | 1.15 in (1974) |
| January 15 | 52.0°F (2026) | -9.9°F (1950) | 1.42 in (1974) |
| January 16 | 51.1°F (2010) | -11.0°F (1937) | 0.85 in (1956) |
| January 17 | 54.0°F (1919) | -13.0°F (1930) | 0.98 in (1919) |
| January 18 | 55.9°F (1920) | -14.1°F (1916) | 0.75 in (1932) |
| January 19 | 55.0°F (1920) | -11.0°F (1950) | 1.12 in (1909) |
| January 20 | 53.1°F (2010) | -27.0°F (1935) | 1.67 in (1972) |
| January 21 | 48.9°F (1900) | -20.9°F (1935) | 0.79 in (1951) |
| January 22 | 50.0°F (1934) | -13.0°F (1962) | 2.19 in (1954) |
| January 23 | 52.0°F (1981) | -17.0°F (1929) | 1.50 in (1935) |
| January 24 | 50.0°F (2005) | -22.0°F (1949) | 1.16 in (1965) |
| January 25 | 50.0°F (2005) | -20.0°F (1949) | 0.85 in (1964) |
| January 26 | 50.0°F (1953) | -15.0°F (1957) | 0.62 in (2003) |
| January 27 | 57.0°F (2003) | -17.0°F (1957) | 1.70 in (2008) |
| January 28 | 52.0°F (1896) | -20.9°F (1950) | 0.60 in (1970) |
| January 29 | 53.1°F (1931) | -29.0°F (1950) | 0.46 in (1965) |
| January 30 | 54.0°F (1971) | -29.9°F (1950) | 1.32 in (2012) |
| January 31 | 57.9°F (1971) | -26.0°F (1950) | 0.84 in (1974) |