January weather in Sidney, MT
The average temperature in Sidney in January is 16.9°F (6.5°F–27.2°F). Average precipitation: 0.45 inches. Average snowfall is 7.0 inches.
January is a winter month in Sidney, and is cooler than the annual average of 45.2°F. Daily temperatures swing about 20.7°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 8h 37m. For travel, January is cold.
Avg High
27.2°F
Avg Low
6.5°F
Precipitation
0.45 in
Snow
7.0 in
January records in Sidney
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 54.0°F (1913) | -36.0°F (2018) | 0.31 in (2005) |
| January 2 | 57.9°F (1962) | -27.9°F (1911) | 0.33 in (2004) |
| January 3 | 52.0°F (1918) | -29.9°F (1969) | 0.35 in (1911) |
| January 4 | 55.9°F (2012) | -33.0°F (1950) | 0.10 in (1968) |
| January 5 | 61.0°F (2012) | -35.0°F (2005) | 0.25 in (1911) |
| January 6 | 51.1°F (2012) | -32.1°F (2022) | 0.44 in (1980) |
| January 7 | 55.0°F (1914) | -27.9°F (1968) | 0.21 in (1989) |
| January 8 | 61.0°F (2002) | -32.1°F (1976) | 0.25 in (1911) |
| January 9 | 55.9°F (2002) | -26.0°F (1980) | 0.50 in (2017) |
| January 10 | 53.1°F (2012) | -35.0°F (1982) | 0.28 in (2018) |
| January 11 | 54.0°F (1987) | -47.0°F (1912) | 0.31 in (1988) |
| January 12 | 53.1°F (2026) | -45.9°F (1916) | 0.17 in (1993) |
| January 13 | 57.9°F (2021) | -41.1°F (1916) | 0.35 in (1967) |
| January 14 | 55.0°F (2021) | -31.0°F (1972) | 0.17 in (1992) |
| January 15 | 57.9°F (1921) | -31.0°F (1971) | 0.19 in (1967) |
| January 16 | 55.0°F (1914) | -32.1°F (1950) | 0.70 in (1995) |
| January 17 | 48.9°F (1974) | -36.0°F (1967) | 0.22 in (1999) |
| January 18 | 50.0°F (1991) | -40.0°F (1950) | 0.19 in (2011) |
| January 19 | 48.9°F (1974) | -32.1°F (1970) | 0.20 in (1920) |
| January 20 | 50.0°F (1992) | -40.0°F (1954) | 0.19 in (1916) |
| January 21 | 53.1°F (1968) | -35.0°F (1954) | 0.60 in (2015) |
| January 22 | 55.0°F (1981) | -26.0°F (1917) | 0.23 in (2011) |
| January 23 | 54.0°F (1981) | -35.0°F (1922) | 0.20 in (2020) |
| January 24 | 55.0°F (1968) | -38.0°F (1920) | 0.29 in (1992) |
| January 25 | 52.0°F (2012) | -36.0°F (1969) | 0.26 in (2004) |
| January 26 | 51.1°F (2006) | -42.0°F (1950) | 0.27 in (1951) |
| January 27 | 54.0°F (2015) | -38.0°F (1915) | 0.21 in (1912) |
| January 28 | 54.0°F (2024) | -36.9°F (1916) | 0.22 in (1916) |
| January 29 | 57.0°F (2026) | -38.0°F (1950) | 0.13 in (1984) |
| January 30 | 60.1°F (2024) | -41.1°F (1950) | 0.16 in (2011) |
| January 31 | 59.0°F (2024) | -42.0°F (1959) | 0.25 in (1965) |