January weather in St. Ignatius, MT
The average temperature in St. Ignatius in January is 29.7°F (22.6°F–36.8°F). Average precipitation: 0.95 inches.
January is a winter month in St. Ignatius, and is cooler than the annual average of 47.7°F. Daily temperatures swing about 14.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 8h 40m. For travel, January is cold.
Avg High
36.8°F
Avg Low
22.6°F
Precipitation
0.95 in
Daylight
8h 40m
January records in St. Ignatius
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 57.9°F (1918) | -29.9°F (1979) | 0.36 in (1928) |
| January 2 | 59.0°F (1939) | -20.0°F (1979) | 0.35 in (1972) |
| January 3 | 52.0°F (1930) | -22.0°F (1974) | 0.30 in (1978) |
| January 4 | 55.0°F (1914) | -20.9°F (1924) | 0.29 in (2004) |
| January 5 | 54.0°F (1914) | -20.9°F (1974) | 0.50 in (1927) |
| January 6 | 63.0°F (1914) | -25.1°F (1974) | 0.85 in (1989) |
| January 7 | 57.9°F (1914) | -34.1°F (1937) | 0.68 in (1962) |
| January 8 | 55.0°F (2002) | -27.0°F (1937) | 0.59 in (1909) |
| January 9 | 59.0°F (1953) | -24.0°F (1979) | 1.64 in (2023) |
| January 10 | 59.0°F (1959) | -27.0°F (1909) | 0.33 in (1968) |
| January 11 | 61.0°F (1953) | -29.9°F (1909) | 0.48 in (1982) |
| January 12 | 60.1°F (1983) | -29.9°F (1909) | 0.35 in (1953) |
| January 13 | 55.0°F (1945) | -20.0°F (1930) | 0.29 in (1927) |
| January 14 | 55.9°F (1973) | -24.0°F (1930) | 0.33 in (1950) |
| January 15 | 62.1°F (1973) | -14.1°F (1950) | 0.63 in (1977) |
| January 16 | 55.9°F (1974) | -29.0°F (1916) | 0.69 in (1959) |
| January 17 | 55.9°F (1974) | -32.1°F (1930) | 0.33 in (1963) |
| January 18 | 55.0°F (1919) | -29.0°F (1930) | 0.52 in (1970) |
| January 19 | 57.0°F (2005) | -29.0°F (1916) | 0.95 in (2022) |
| January 20 | 55.0°F (1919) | -31.0°F (1937) | 0.23 in (1909) |
| January 21 | 59.0°F (2005) | -33.0°F (1937) | 0.32 in (1965) |
| January 22 | 55.9°F (1910) | -29.9°F (1930) | 0.44 in (1993) |
| January 23 | 54.0°F (1919) | -29.0°F (1929) | 0.44 in (1982) |
| January 24 | 60.1°F (1953) | -29.0°F (1930) | 0.73 in (1981) |
| January 25 | 57.9°F (1935) | -29.9°F (1930) | 0.45 in (1916) |
| January 26 | 54.0°F (2003) | -32.1°F (1957) | 0.85 in (1920) |
| January 27 | 57.0°F (1934) | -32.1°F (1957) | 0.29 in (1994) |
| January 28 | 57.9°F (1931) | -26.0°F (1916) | 0.86 in (1959) |
| January 29 | 57.0°F (1960) | -29.0°F (1950) | 0.24 in (1956) |
| January 30 | 57.0°F (1971) | -31.0°F (1937) | 1.28 in (2023) |
| January 31 | 66.9°F (1992) | -33.0°F (1937) | 0.42 in (1910) |