January weather in Harlowton, MT
The average temperature in Harlowton in January is 24.5°F (13.3°F–35.7°F). Average precipitation: 0.31 inches. Average snowfall is 3.7 inches.
January is a winter month in Harlowton, and is cooler than the annual average of 43.8°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 8h 47m. For travel, January is cold.
Avg High
35.7°F
Avg Low
13.3°F
Precipitation
0.31 in
Snow
3.7 in
January records in Harlowton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 57.9°F (1964) | -27.0°F (2018) | 0.27 in (1951) |
| January 2 | 54.0°F (1998) | -20.9°F (1950) | 0.64 in (1972) |
| January 3 | 59.0°F (1998) | -29.0°F (1950) | 0.31 in (2025) |
| January 4 | 55.0°F (2026) | -15.0°F (1973) | 0.11 in (1977) |
| January 5 | 59.0°F (2001) | -26.0°F (2004) | 0.21 in (1980) |
| January 6 | 57.0°F (1954) | -24.0°F (1982) | 0.35 in (1969) |
| January 7 | 62.1°F (2003) | -24.0°F (2010) | 0.10 in (1969) |
| January 8 | 57.9°F (1958) | -24.0°F (1973) | 0.14 in (1988) |
| January 9 | 63.0°F (1953) | -25.1°F (1949) | 0.34 in (1978) |
| January 10 | 57.0°F (1959) | -26.0°F (1949) | 0.30 in (1980) |
| January 11 | 63.0°F (1953) | -27.0°F (1963) | 0.34 in (1988) |
| January 12 | 63.0°F (1953) | -41.1°F (2024) | 0.30 in (1993) |
| January 13 | 57.9°F (1973) | -31.0°F (2024) | 0.15 in (2005) |
| January 14 | 61.0°F (2026) | -34.1°F (2024) | 0.20 in (2014) |
| January 15 | 60.1°F (1974) | -35.0°F (2024) | 0.30 in (2003) |
| January 16 | 62.1°F (1974) | -20.9°F (1954) | 0.39 in (1952) |
| January 17 | 57.9°F (1976) | -24.0°F (1950) | 0.27 in (1970) |
| January 18 | 54.0°F (1977) | -20.9°F (1962) | 0.46 in (1953) |
| January 19 | 62.1°F (1986) | -29.0°F (1963) | 0.50 in (2012) |
| January 20 | 60.1°F (1981) | -35.0°F (1949) | 0.34 in (1970) |
| January 21 | 62.1°F (2009) | -29.0°F (1962) | 0.20 in (1949) |
| January 22 | 69.1°F (1981) | -27.0°F (1982) | 0.31 in (1969) |
| January 23 | 64.0°F (1981) | -36.9°F (1969) | 0.48 in (1989) |
| January 24 | 62.1°F (1968) | -35.0°F (1949) | 0.15 in (1972) |
| January 25 | 55.9°F (1951) | -38.0°F (1957) | 0.13 in (2004) |
| January 26 | 59.0°F (2007) | -25.1°F (1957) | 0.79 in (1975) |
| January 27 | 66.9°F (2015) | -36.0°F (1972) | 0.30 in (1949) |
| January 28 | 59.0°F (2015) | -34.1°F (1969) | 0.10 in (2019) |
| January 29 | 59.0°F (2016) | -29.0°F (1969) | 0.10 in (1965) |
| January 30 | 64.0°F (2024) | -34.1°F (1996) | 0.15 in (1971) |
| January 31 | 66.0°F (2024) | -25.1°F (2011) | 0.50 in (1949) |