January weather in Riverton, WY
The average temperature in Riverton in January is 16.4°F (4.2°F–28.7°F). Average precipitation: 0.35 inches. Average snowfall is 5.5 inches.
January is a winter month in Riverton, and is cooler than the annual average of 43.9°F. Daily temperatures swing about 24.5°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 9h 10m. For travel, January is cold.
Avg High
28.7°F
Avg Low
4.2°F
Precipitation
0.35 in
Snow
5.5 in
January records in Riverton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 52.0°F (1943) | -45.9°F (1979) | 0.08 in (1976) |
| January 2 | 59.0°F (1997) | -43.1°F (1979) | 0.39 in (2023) |
| January 3 | 54.0°F (2009) | -31.0°F (1959) | 0.18 in (2023) |
| January 4 | 55.0°F (1927) | -40.0°F (1959) | 0.80 in (1996) |
| January 5 | 55.9°F (1953) | -38.0°F (1942) | 0.34 in (1940) |
| January 6 | 61.0°F (1919) | -33.0°F (2017) | 0.28 in (1987) |
| January 7 | 72.0°F (1994) | -38.0°F (1910) | 0.14 in (1937) |
| January 8 | 57.0°F (1966) | -40.0°F (1910) | 0.30 in (2016) |
| January 9 | 59.0°F (1966) | -36.0°F (1937) | 0.31 in (2006) |
| January 10 | 63.0°F (1953) | -38.0°F (1962) | 0.11 in (2011) |
| January 11 | 57.9°F (1953) | -38.0°F (1962) | 0.45 in (2023) |
| January 12 | 60.1°F (1928) | -45.9°F (1963) | 0.21 in (1932) |
| January 13 | 59.0°F (1953) | -38.0°F (1963) | 0.10 in (2024) |
| January 14 | 61.0°F (2026) | -35.0°F (1932) | 0.32 in (1984) |
| January 15 | 60.1°F (2026) | -33.0°F (1932) | 0.30 in (1953) |
| January 16 | 57.9°F (2026) | -29.9°F (2024) | 0.85 in (1995) |
| January 17 | 55.0°F (2000) | -45.9°F (1930) | 0.26 in (1995) |
| January 18 | 54.0°F (2000) | -45.0°F (1984) | 0.18 in (2025) |
| January 19 | 55.0°F (1909) | -41.1°F (1984) | 0.11 in (1945) |
| January 20 | 55.9°F (1909) | -42.0°F (1984) | 0.11 in (2001) |
| January 21 | 57.9°F (1909) | -38.0°F (1930) | 0.43 in (2018) |
| January 22 | 55.9°F (1934) | -45.0°F (1962) | 0.14 in (2010) |
| January 23 | 60.1°F (1934) | -40.0°F (1962) | 0.13 in (1978) |
| January 24 | 61.0°F (1970) | -43.1°F (1949) | 0.70 in (2017) |
| January 25 | 55.0°F (1970) | -42.0°F (1949) | 0.27 in (1954) |
| January 26 | 61.0°F (1951) | -35.0°F (1949) | 0.12 in (1923) |
| January 27 | 60.1°F (1982) | -33.0°F (1948) | 0.21 in (1949) |
| January 28 | 57.0°F (1971) | -33.0°F (1980) | 0.32 in (1995) |
| January 29 | 57.0°F (1971) | -35.0°F (1949) | 0.14 in (2023) |
| January 30 | 59.0°F (1971) | -35.0°F (2023) | 0.03 in (1996) |
| January 31 | 61.0°F (1971) | -38.0°F (1979) | 0.18 in (1981) |