January weather in Grass Valley, OR
The average temperature in Grass Valley in January is 32.3°F (24.5°F–40.1°F). Average precipitation: 1.47 inches. Average snowfall is 5.3 inches.
January is a winter month in Grass Valley, and is cooler than the annual average of 49°F. Daily temperatures swing about 15.6°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 8h 54m. For travel, January is cold.
Avg High
40.1°F
Avg Low
24.5°F
Precipitation
1.47 in
Snow
5.3 in
January records in Grass Valley
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 64.9°F (1918) | -14.1°F (1979) | 0.70 in (2006) |
| January 2 | 57.9°F (1918) | -11.9°F (1979) | 1.30 in (2009) |
| January 3 | 57.0°F (2007) | -9.9°F (1959) | 0.84 in (2025) |
| January 4 | 57.9°F (1989) | -8.0°F (1959) | 0.51 in (1936) |
| January 5 | 59.0°F (2012) | -8.0°F (1974) | 0.40 in (1980) |
| January 6 | 55.0°F (1983) | -9.9°F (1979) | 0.88 in (1966) |
| January 7 | 57.9°F (1945) | -9.9°F (1979) | 0.68 in (1948) |
| January 8 | 60.1°F (2009) | -11.0°F (1974) | 0.57 in (1976) |
| January 9 | 55.9°F (1953) | -9.0°F (1974) | 1.67 in (1953) |
| January 10 | 60.1°F (1990) | -8.0°F (1974) | 1.09 in (1989) |
| January 11 | 62.1°F (1999) | -9.9°F (1974) | 0.49 in (1959) |
| January 12 | 57.0°F (1983) | -6.0°F (1937) | 0.70 in (1980) |
| January 13 | 62.1°F (2021) | -2.9°F (2017) | 0.79 in (1980) |
| January 14 | 57.9°F (1994) | -11.0°F (1950) | 0.55 in (1956) |
| January 15 | 59.0°F (2011) | -7.1°F (1950) | 1.17 in (1956) |
| January 16 | 57.0°F (2014) | -9.0°F (1957) | 0.40 in (1954) |
| January 17 | 61.0°F (1976) | -16.1°F (1930) | 0.75 in (1951) |
| January 18 | 57.9°F (1975) | -14.1°F (1943) | 0.68 in (2015) |
| January 19 | 61.0°F (2005) | -6.0°F (1957) | 0.84 in (1927) |
| January 20 | 60.1°F (1994) | -13.0°F (1930) | 0.43 in (1943) |
| January 21 | 62.1°F (1968) | -18.0°F (1930) | 1.64 in (1972) |
| January 22 | 61.0°F (2005) | -16.1°F (1930) | 0.35 in (1931) |
| January 23 | 54.0°F (1934) | -9.0°F (1930) | 0.69 in (1970) |
| January 24 | 59.0°F (1935) | -9.0°F (1949) | 0.61 in (1970) |
| January 25 | 63.0°F (2015) | -11.0°F (1949) | 0.63 in (2010) |
| January 26 | 68.0°F (2015) | -22.0°F (1957) | 0.66 in (1975) |
| January 27 | 63.0°F (2003) | -22.0°F (1957) | 0.93 in (1954) |
| January 28 | 59.0°F (1931) | -24.0°F (1952) | 0.42 in (2020) |
| January 29 | 57.9°F (1971) | -13.0°F (1950) | 0.70 in (1958) |
| January 30 | 63.0°F (2018) | -11.0°F (1950) | 0.50 in (1928) |
| January 31 | 63.0°F (1971) | -17.0°F (1950) | 0.64 in (1945) |