December weather in South Cle Elum, WA
The average temperature in South Cle Elum in December is 28.3°F (22.3°F–34.3°F). Average precipitation: 3.50 inches.
December is a winter month in South Cle Elum, and is cooler than the annual average of 46.5°F. Daily temperatures swing about 12°F between overnight low and afternoon high. Daylight averages about 8h 18m. For travel, December is cold.
Avg High
34.3°F
Avg Low
22.3°F
Precipitation
3.50 in
Daylight
8h 18m
December records in South Cle Elum
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 57.0°F (1927) | 7.0°F (1983) | 2.05 in (1975) |
| December 2 | 62.1°F (2021) | -9.0°F (1919) | 3.10 in (1977) |
| December 3 | 55.9°F (1918) | -9.9°F (1919) | 1.20 in (1902) |
| December 4 | 53.1°F (1927) | -5.1°F (1919) | 0.85 in (1917) |
| December 5 | 57.9°F (1900) | -2.9°F (1919) | 1.87 in (1923) |
| December 6 | 59.0°F (1925) | -2.9°F (1956) | 1.80 in (1933) |
| December 7 | 59.0°F (1938) | -2.0°F (1956) | 0.95 in (1958) |
| December 8 | 55.9°F (1938) | -11.9°F (1972) | 1.13 in (2015) |
| December 9 | 55.9°F (1957) | -11.9°F (1972) | 3.67 in (1933) |
| December 10 | 57.9°F (1957) | -11.0°F (1927) | 2.05 in (1987) |
| December 11 | 57.9°F (2025) | -15.0°F (1919) | 2.25 in (1946) |
| December 12 | 57.0°F (1924) | -27.0°F (1919) | 2.60 in (1969) |
| December 13 | 55.0°F (1924) | -24.0°F (1919) | 1.25 in (2001) |
| December 14 | 54.0°F (1924) | -17.0°F (1919) | 0.99 in (1971) |
| December 15 | 55.0°F (1962) | -8.0°F (1922) | 1.17 in (1979) |
| December 16 | 55.9°F (1942) | -18.0°F (1964) | 0.85 in (1933) |
| December 17 | 52.0°F (1937) | -25.1°F (1964) | 1.41 in (1917) |
| December 18 | 55.0°F (1958) | -9.9°F (1964) | 2.35 in (1917) |
| December 19 | 54.0°F (1936) | -11.9°F (1984) | 1.50 in (1941) |
| December 20 | 52.0°F (1999) | -9.9°F (1984) | 1.18 in (1974) |
| December 21 | 52.0°F (1937) | -15.0°F (1983) | 1.75 in (1915) |
| December 22 | 52.0°F (1911) | -20.0°F (1983) | 1.38 in (1964) |
| December 23 | 54.0°F (1922) | -23.1°F (1983) | 1.57 in (1901) |
| December 24 | 55.0°F (1899) | -17.0°F (1983) | 2.20 in (1902) |
| December 25 | 66.0°F (1931) | -4.0°F (1924) | 1.11 in (1980) |
| December 26 | 53.1°F (1967) | -11.0°F (1948) | 0.95 in (1932) |
| December 27 | 54.0°F (1967) | -8.0°F (1948) | 0.92 in (1973) |
| December 28 | 50.0°F (1997) | -4.0°F (1916) | 1.35 in (1915) |
| December 29 | 51.1°F (1997) | -14.1°F (1990) | 1.50 in (1998) |
| December 30 | 50.0°F (1917) | -31.0°F (1968) | 1.05 in (1920) |
| December 31 | 53.1°F (1958) | -18.9°F (1978) | 1.10 in (1922) |