January weather in Dillon, MT
The average temperature in Dillon in January is 23.9°F (14.5°F–33.3°F). Average precipitation: 0.31 inches. Average snowfall is 1.7 inches.
January is a winter month in Dillon, and is cooler than the annual average of 42.8°F. Daily temperatures swing about 18.8°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 8h 55m. For travel, January is cold.
Avg High
33.3°F
Avg Low
14.5°F
Precipitation
0.31 in
Snow
1.7 in
January records in Dillon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 57.9°F (1918) | -35.0°F (1942) | 0.40 in (1910) |
| January 2 | 55.9°F (1927) | -22.0°F (1937) | 0.43 in (1955) |
| January 3 | 52.0°F (1918) | -26.0°F (1950) | 0.43 in (2002) |
| January 4 | 53.1°F (1909) | -27.9°F (1942) | 0.25 in (1916) |
| January 5 | 53.1°F (2012) | -29.9°F (2004) | 0.51 in (1907) |
| January 6 | 53.1°F (1969) | -26.0°F (1937) | 0.45 in (2022) |
| January 7 | 55.0°F (1948) | -36.0°F (1937) | 0.60 in (1907) |
| January 8 | 57.9°F (1900) | -36.0°F (1937) | 0.34 in (1962) |
| January 9 | 55.9°F (1953) | -29.9°F (1962) | 1.10 in (1909) |
| January 10 | 50.0°F (1900) | -29.9°F (1949) | 0.20 in (1903) |
| January 11 | 54.0°F (1953) | -27.9°F (1963) | 0.59 in (2013) |
| January 12 | 54.0°F (1953) | -34.1°F (2024) | 0.32 in (1932) |
| January 13 | 55.9°F (1996) | -40.0°F (2024) | 0.55 in (1911) |
| January 14 | 55.9°F (2026) | -31.0°F (1907) | 0.89 in (1928) |
| January 15 | 55.0°F (2026) | -27.0°F (1930) | 0.70 in (1995) |
| January 16 | 55.0°F (1976) | -29.0°F (1916) | 0.37 in (1936) |
| January 17 | 55.9°F (1961) | -32.1°F (1930) | 0.25 in (1922) |
| January 18 | 52.0°F (2015) | -31.0°F (1943) | 0.41 in (1980) |
| January 19 | 55.0°F (1981) | -27.9°F (1963) | 1.10 in (1916) |
| January 20 | 55.9°F (1981) | -35.0°F (1937) | 0.43 in (1969) |
| January 21 | 54.0°F (1950) | -34.1°F (1937) | 0.50 in (1915) |
| January 22 | 59.0°F (1981) | -27.9°F (1962) | 0.50 in (1902) |
| January 23 | 55.0°F (1953) | -33.0°F (1969) | 0.42 in (1954) |
| January 24 | 55.9°F (1918) | -34.1°F (1949) | 0.30 in (1895) |
| January 25 | 55.9°F (2015) | -31.0°F (1949) | 0.55 in (1925) |
| January 26 | 55.0°F (2015) | -34.1°F (1957) | 1.00 in (1916) |
| January 27 | 54.0°F (1987) | -31.0°F (1916) | 0.60 in (1929) |
| January 28 | 53.1°F (1920) | -31.0°F (1929) | 0.75 in (2023) |
| January 29 | 55.0°F (1931) | -29.9°F (1951) | 0.40 in (1923) |
| January 30 | 55.9°F (1931) | -27.0°F (1996) | 0.55 in (1908) |
| January 31 | 60.1°F (1953) | -26.0°F (1937) | 0.52 in (1955) |