December weather in Royal City, WA
The average temperature in Royal City in December is 32.6°F (25.7°F–39.6°F). Average precipitation: inches.
December is a winter month in Royal City, and is cooler than the annual average of 53.4°F. Daily temperatures swing about 13.9°F between overnight low and afternoon high. Daylight averages about 8h 20m. For travel, December is cold.
Avg High
39.6°F
Avg Low
25.7°F
Precipitation
in
Daylight
8h 20m
December records in Royal City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 60.1°F (1951) | -9.0°F (1985) | 0.90 in (1952) |
| December 2 | 64.0°F (1972) | -4.0°F (1985) | 0.38 in (1999) |
| December 3 | 63.0°F (1975) | -4.0°F (1985) | 0.73 in (1980) |
| December 4 | 69.1°F (1977) | 1.0°F (1985) | 0.50 in (1974) |
| December 5 | 57.9°F (1991) | 3.0°F (1972) | 0.41 in (1963) |
| December 6 | 57.0°F (1957) | -6.0°F (1956) | 0.40 in (1982) |
| December 7 | 59.0°F (1987) | 1.9°F (1956) | 0.35 in (1952) |
| December 8 | 55.9°F (1973) | -0.9°F (1972) | 0.73 in (1963) |
| December 9 | 57.0°F (1953) | -0.9°F (1972) | 0.30 in (1971) |
| December 10 | 63.0°F (2004) | -2.0°F (1972) | 0.58 in (1992) |
| December 11 | 63.0°F (2004) | -2.9°F (1972) | 0.99 in (1995) |
| December 12 | 57.9°F (1991) | 3.9°F (1972) | 0.41 in (1971) |
| December 13 | 57.9°F (1988) | -9.9°F (1972) | 0.78 in (1977) |
| December 14 | 57.0°F (1977) | -4.0°F (1972) | 0.63 in (1977) |
| December 15 | 64.9°F (1959) | 6.1°F (1972) | 0.45 in (1981) |
| December 16 | 60.1°F (1999) | -8.0°F (1964) | 0.50 in (1987) |
| December 17 | 57.9°F (2001) | -11.0°F (1964) | 0.30 in (1992) |
| December 18 | 55.9°F (1956) | -4.0°F (1964) | 0.41 in (1960) |
| December 19 | 57.0°F (1952) | -4.0°F (1984) | 0.44 in (1981) |
| December 20 | 63.0°F (1994) | -5.1°F (2008) | 0.26 in (1970) |
| December 21 | 60.1°F (1974) | -18.9°F (1990) | 0.75 in (1964) |
| December 22 | 59.0°F (1978) | -22.0°F (1990) | 0.43 in (2008) |
| December 23 | 55.0°F (1980) | -16.1°F (1983) | 0.25 in (1965) |
| December 24 | 57.0°F (1992) | -11.9°F (1983) | 0.57 in (1979) |
| December 25 | 57.0°F (1957) | -9.0°F (1964) | 0.60 in (1960) |
| December 26 | 68.0°F (1980) | -2.9°F (1988) | 0.26 in (2006) |
| December 27 | 70.0°F (1980) | 1.0°F (1996) | 0.61 in (1973) |
| December 28 | 64.0°F (1980) | -13.0°F (1996) | 0.26 in (1973) |
| December 29 | 57.9°F (1997) | -17.0°F (1990) | 0.66 in (1996) |
| December 30 | 62.1°F (1998) | -17.0°F (1990) | 0.49 in (1983) |
| December 31 | 55.0°F (1954) | -7.1°F (1978) | 0.74 in (1996) |