December weather in Soap Lake, WA
The average temperature in Soap Lake in December is 29.6°F (23.6°F–35.5°F). Average precipitation: 1.13 inches.
December is a winter month in Soap Lake, and is cooler than the annual average of 51.5°F. Daily temperatures swing about 11.9°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 8h 16m. For travel, December is cold.
Avg High
35.5°F
Avg Low
23.6°F
Precipitation
1.13 in
Daylight
8h 16m
December records in Soap Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 69.1°F (2021) | 1.0°F (1985) | 0.45 in (1979) |
| December 2 | 60.1°F (2021) | 1.9°F (2006) | 0.40 in (1985) |
| December 3 | 59.0°F (1975) | 3.0°F (1985) | 0.28 in (1970) |
| December 4 | 60.1°F (2007) | 1.9°F (2005) | 0.63 in (1974) |
| December 5 | 52.0°F (1953) | 5.0°F (1984) | 0.42 in (1963) |
| December 6 | 55.9°F (2025) | 3.0°F (1956) | 0.35 in (1987) |
| December 7 | 51.1°F (1973) | -0.8°F (2013) | 0.52 in (2015) |
| December 8 | 57.0°F (2025) | -1.8°F (2013) | 0.56 in (1971) |
| December 9 | 55.9°F (2025) | 0.0°F (1972) | 0.59 in (1987) |
| December 10 | 64.0°F (2025) | 0.0°F (1963) | 0.60 in (1992) |
| December 11 | 63.0°F (2025) | -2.0°F (1963) | 0.61 in (1969) |
| December 12 | 55.0°F (1999) | -5.1°F (1972) | 0.49 in (1995) |
| December 13 | 52.0°F (2014) | -4.0°F (1972) | 0.54 in (1977) |
| December 14 | 52.0°F (1979) | -0.9°F (1975) | 0.45 in (2002) |
| December 15 | 64.9°F (2025) | -5.1°F (1971) | 0.37 in (1970) |
| December 16 | 59.0°F (1999) | -9.9°F (1964) | 0.50 in (1987) |
| December 17 | 53.1°F (1990) | -11.0°F (1964) | 0.26 in (2024) |
| December 18 | 54.0°F (1999) | -0.8°F (2016) | 0.35 in (1960) |
| December 19 | 48.9°F (2020) | -7.1°F (1984) | 0.49 in (1981) |
| December 20 | 55.9°F (1994) | -0.9°F (1984) | 0.50 in (1970) |
| December 21 | 55.0°F (2014) | -9.0°F (1984) | 0.57 in (1955) |
| December 22 | 52.0°F (2014) | -11.0°F (1990) | 0.56 in (1968) |
| December 23 | 48.0°F (1969) | -20.9°F (1983) | 0.38 in (1979) |
| December 24 | 53.1°F (1957) | -2.9°F (1983) | 0.40 in (1968) |
| December 25 | 53.1°F (1957) | -0.9°F (1964) | 0.56 in (2024) |
| December 26 | 60.1°F (1980) | -2.0°F (1988) | 0.35 in (2006) |
| December 27 | 55.9°F (1980) | 1.9°F (1968) | 0.59 in (1965) |
| December 28 | 55.0°F (2011) | -9.9°F (1968) | 0.76 in (1992) |
| December 29 | 55.0°F (1998) | -14.1°F (1968) | 0.40 in (1995) |
| December 30 | 50.0°F (2011) | -16.1°F (1968) | 0.50 in (2002) |
| December 31 | 51.1°F (1954) | -9.0°F (1978) | 0.44 in (1996) |