December weather in Richland, OR
The average temperature in Richland in December is 30.3°F (21.3°F–39.3°F). Average precipitation: inches.
December is a winter month in Richland, and is cooler than the annual average of 49.5°F. Daily temperatures swing about 18°F between overnight low and afternoon high. Daylight averages about 8h 37m. For travel, December is cold.
Avg High
39.3°F
Avg Low
21.3°F
Precipitation
in
Daylight
8h 37m
December records in Richland
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 59.0°F (1950) | 5.0°F (1954) | 0.50 in (1993) |
| December 2 | 64.9°F (1950) | 10.0°F (1953) | 1.20 in (1952) |
| December 3 | 60.1°F (1950) | 10.0°F (1953) | 0.75 in (2007) |
| December 4 | 57.9°F (1946) | -2.0°F (1992) | 0.75 in (1978) |
| December 5 | 59.0°F (1920) | 1.0°F (1992) | 2.25 in (1995) |
| December 6 | 55.0°F (1987) | -9.0°F (1992) | 0.48 in (1950) |
| December 7 | 62.1°F (1987) | -2.0°F (1972) | 0.51 in (1952) |
| December 8 | 55.0°F (1915) | -9.9°F (1972) | 0.55 in (1963) |
| December 9 | 57.9°F (1953) | -15.0°F (1972) | 0.35 in (1992) |
| December 10 | 60.1°F (1953) | -14.1°F (1972) | 0.38 in (1963) |
| December 11 | 55.9°F (1993) | -8.0°F (1963) | 0.85 in (1956) |
| December 12 | 57.9°F (1995) | -14.1°F (1919) | 1.07 in (2010) |
| December 13 | 54.0°F (2002) | -22.0°F (1919) | 1.00 in (1990) |
| December 14 | 60.1°F (1952) | -17.0°F (1919) | 0.31 in (1917) |
| December 15 | 57.0°F (1946) | -9.9°F (1919) | 0.50 in (1918) |
| December 16 | 55.9°F (1982) | -2.9°F (1919) | 0.61 in (2009) |
| December 17 | 62.1°F (2001) | -9.0°F (1964) | 0.43 in (1972) |
| December 18 | 55.0°F (1950) | -4.0°F (1945) | 1.00 in (1988) |
| December 19 | 55.9°F (1950) | -5.1°F (1899) | 0.37 in (1948) |
| December 20 | 55.0°F (1900) | -4.0°F (1899) | 1.00 in (1919) |
| December 21 | 55.9°F (1952) | -11.9°F (1990) | 0.57 in (1945) |
| December 22 | 61.0°F (1917) | -16.1°F (1990) | 0.70 in (1913) |
| December 23 | 57.9°F (1917) | -16.1°F (1948) | 0.51 in (1955) |
| December 24 | 57.9°F (1917) | -20.9°F (1983) | 0.50 in (1979) |
| December 25 | 55.9°F (1917) | -9.9°F (1948) | 1.00 in (1990) |
| December 26 | 57.9°F (1964) | -13.0°F (1916) | 0.50 in (1996) |
| December 27 | 55.0°F (1972) | -11.0°F (1916) | 0.63 in (1972) |
| December 28 | 55.0°F (1917) | -0.9°F (1988) | 4.00 in (2003) |
| December 29 | 60.1°F (1917) | -9.9°F (1990) | 0.50 in (1895) |
| December 30 | 60.1°F (1996) | -15.0°F (1990) | 2.00 in (2002) |
| December 31 | 57.0°F (1917) | -6.0°F (1974) | 0.86 in (1995) |