January weather in Sunnyside, WA
The average temperature in Sunnyside in January is 30.3°F (23.0°F–37.6°F). Average precipitation: 0.98 inches.
January is a winter month in Sunnyside, and is cooler than the annual average of 49.9°F. Daily temperatures swing about 14.6°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 8h 48m. For travel, January is cold.
Avg High
37.6°F
Avg Low
23.0°F
Precipitation
0.98 in
Daylight
8h 48m
January records in Sunnyside
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 70.0°F (1918) | -7.1°F (1979) | 0.50 in (1928) |
| January 2 | 63.0°F (1913) | -5.1°F (1979) | 0.92 in (2009) |
| January 3 | 59.0°F (1903) | 1.0°F (1959) | 0.61 in (1936) |
| January 4 | 63.0°F (1989) | -16.1°F (1899) | 0.35 in (1956) |
| January 5 | 60.1°F (1994) | -9.0°F (1899) | 0.28 in (2010) |
| January 6 | 62.1°F (1914) | -8.0°F (1982) | 0.58 in (1912) |
| January 7 | 63.0°F (1902) | -7.1°F (1974) | 1.21 in (1948) |
| January 8 | 66.0°F (1983) | -16.1°F (1912) | 0.53 in (1990) |
| January 9 | 62.1°F (2002) | -18.0°F (1909) | 0.71 in (1953) |
| January 10 | 60.1°F (1953) | -9.9°F (1909) | 0.52 in (1936) |
| January 11 | 63.0°F (1983) | -8.0°F (1909) | 0.54 in (1899) |
| January 12 | 62.1°F (1945) | -24.0°F (1909) | 0.84 in (1959) |
| January 13 | 60.1°F (1991) | -7.1°F (1909) | 0.45 in (1958) |
| January 14 | 64.0°F (1967) | -20.9°F (1909) | 0.40 in (1995) |
| January 15 | 61.0°F (1961) | -7.1°F (1907) | 0.82 in (1968) |
| January 16 | 66.0°F (1976) | -6.0°F (1950) | 0.42 in (1954) |
| January 17 | 62.1°F (1919) | -16.1°F (1930) | 0.65 in (1971) |
| January 18 | 61.0°F (1920) | -7.1°F (1930) | 0.53 in (1998) |
| January 19 | 66.9°F (1977) | -16.1°F (1916) | 0.31 in (2012) |
| January 20 | 64.0°F (1968) | -20.0°F (1930) | 0.35 in (1909) |
| January 21 | 64.0°F (1968) | -26.0°F (1930) | 0.50 in (1914) |
| January 22 | 66.9°F (1968) | -22.0°F (1930) | 0.30 in (1895) |
| January 23 | 59.0°F (1916) | -14.1°F (1930) | 0.87 in (1970) |
| January 24 | 66.0°F (1953) | -9.9°F (1930) | 0.40 in (1970) |
| January 25 | 62.1°F (1984) | -9.9°F (1930) | 0.45 in (1975) |
| January 26 | 60.1°F (1962) | -20.0°F (1957) | 0.76 in (1975) |
| January 27 | 64.9°F (2003) | -18.0°F (1957) | 0.29 in (1970) |
| January 28 | 63.0°F (1931) | -14.1°F (1957) | 0.83 in (1907) |
| January 29 | 61.0°F (1899) | -13.0°F (1950) | 0.40 in (1928) |
| January 30 | 64.0°F (1971) | -14.1°F (1929) | 0.21 in (1968) |
| January 31 | 68.0°F (1971) | -17.0°F (1950) | 0.30 in (1937) |