December weather in Olympia, WA
The average temperature in Olympia in December is 38.9°F (32.8°F–44.9°F). Average precipitation: 7.85 inches. Average snowfall is 1.2 inches.
December is a winter month in Olympia, and is cooler than the annual average of 50.5°F. Daily temperatures swing about 12.1°F between overnight low and afternoon high. Expect about 20 days with precipitation. Daylight averages about 8h 19m. For travel, December is a wet month.
Avg High
44.9°F
Avg Low
32.8°F
Precipitation
7.85 in
Snow
1.2 in
December records in Olympia
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.0°F (1958) | 0.0°F (1985) | 2.40 in (1979) |
| December 2 | 57.0°F (1941) | 19.2°F (2014) | 2.12 in (2007) |
| December 3 | 59.0°F (1982) | 17.1°F (1994) | 3.19 in (2007) |
| December 4 | 62.1°F (2023) | 6.1°F (1994) | 2.27 in (1989) |
| December 5 | 62.1°F (2023) | 12.0°F (1994) | 2.96 in (2023) |
| December 6 | 57.9°F (1965) | 17.1°F (1980) | 1.49 in (1970) |
| December 7 | 57.9°F (1962) | 5.0°F (1972) | 1.13 in (1998) |
| December 8 | 60.1°F (1957) | -2.9°F (1972) | 3.03 in (2025) |
| December 9 | 59.0°F (1993) | 6.1°F (2009) | 3.50 in (1956) |
| December 10 | 64.0°F (2014) | -0.9°F (1972) | 2.41 in (1977) |
| December 11 | 57.9°F (1958) | 10.0°F (2009) | 2.33 in (1955) |
| December 12 | 60.1°F (1995) | 12.0°F (1972) | 1.80 in (1966) |
| December 13 | 60.1°F (1952) | 12.0°F (1967) | 2.12 in (2001) |
| December 14 | 59.0°F (1952) | 15.1°F (1967) | 2.31 in (1959) |
| December 15 | 63.0°F (1980) | 17.1°F (1967) | 2.53 in (1999) |
| December 16 | 57.0°F (1974) | 5.0°F (1964) | 2.90 in (2001) |
| December 17 | 55.9°F (1979) | 3.0°F (1964) | 2.36 in (2024) |
| December 18 | 55.9°F (2004) | 12.9°F (2005) | 1.31 in (2025) |
| December 19 | 55.9°F (2023) | 10.9°F (2008) | 2.17 in (2019) |
| December 20 | 55.9°F (1973) | 3.9°F (1990) | 2.87 in (2019) |
| December 21 | 57.0°F (1980) | 0.0°F (1990) | 1.69 in (1955) |
| December 22 | 55.0°F (1950) | -2.9°F (1983) | 1.42 in (1950) |
| December 23 | 59.0°F (1950) | -7.1°F (1983) | 1.59 in (2005) |
| December 24 | 60.1°F (2005) | 10.9°F (1990) | 1.41 in (1996) |
| December 25 | 61.0°F (1980) | 17.1°F (1944) | 2.00 in (1980) |
| December 26 | 62.1°F (1980) | 17.1°F (1948) | 2.45 in (1994) |
| December 27 | 57.9°F (1980) | 16.0°F (1977) | 2.94 in (1949) |
| December 28 | 55.9°F (1980) | 10.0°F (1990) | 1.25 in (1945) |
| December 29 | 57.0°F (2023) | 3.9°F (1990) | 2.03 in (1988) |
| December 30 | 57.0°F (1958) | 3.0°F (1978) | 2.50 in (1970) |
| December 31 | 57.9°F (1996) | -5.1°F (1978) | 1.63 in (1996) |