December weather in Coulee City, WA
The average temperature in Coulee City in December is 27.6°F (22.6°F–32.7°F). Average precipitation: 1.57 inches.
December is a winter month in Coulee City, and is cooler than the annual average of 48.8°F. Daily temperatures swing about 10.1°F between overnight low and afternoon high. Daylight averages about 8h 14m. For travel, December is cold.
Avg High
32.7°F
Avg Low
22.6°F
Precipitation
1.57 in
Daylight
8h 14m
December records in Coulee City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 52.0°F (1941) | 3.0°F (1985) | 0.75 in (1944) |
| December 2 | 52.0°F (1941) | 3.0°F (1985) | 0.59 in (1938) |
| December 3 | 51.1°F (1982) | 5.0°F (1972) | 0.70 in (1947) |
| December 4 | 52.0°F (1975) | 3.0°F (1984) | 0.65 in (1974) |
| December 5 | 48.9°F (1939) | 3.9°F (1984) | 0.35 in (1971) |
| December 6 | 55.0°F (1936) | 0.0°F (1972) | 0.48 in (1987) |
| December 7 | 50.0°F (1939) | -4.0°F (1972) | 1.10 in (2015) |
| December 8 | 52.0°F (1939) | -5.1°F (1972) | 0.80 in (1993) |
| December 9 | 52.0°F (1939) | -4.0°F (1972) | 0.77 in (1937) |
| December 10 | 50.0°F (1939) | -4.0°F (1932) | 0.70 in (1931) |
| December 11 | 52.0°F (2014) | -5.1°F (1961) | 0.47 in (1966) |
| December 12 | 52.0°F (2014) | -6.0°F (1931) | 0.70 in (1995) |
| December 13 | 46.9°F (1998) | 1.0°F (1972) | 0.55 in (1977) |
| December 14 | 48.0°F (2014) | 3.0°F (1932) | 0.95 in (1998) |
| December 15 | 48.9°F (1959) | 1.9°F (1971) | 1.05 in (1982) |
| December 16 | 55.9°F (1999) | -17.0°F (1964) | 0.48 in (2018) |
| December 17 | 46.9°F (1956) | -15.0°F (1964) | 0.69 in (1931) |
| December 18 | 53.1°F (1936) | -7.1°F (1964) | 0.95 in (1932) |
| December 19 | 48.9°F (1999) | -6.0°F (1984) | 0.66 in (1940) |
| December 20 | 51.1°F (2014) | -5.1°F (1984) | 0.57 in (1969) |
| December 21 | 50.0°F (1994) | -5.1°F (1984) | 1.00 in (2013) |
| December 22 | 51.1°F (1936) | -4.0°F (1983) | 0.58 in (1973) |
| December 23 | 46.9°F (2014) | -18.9°F (1983) | 0.90 in (1968) |
| December 24 | 45.0°F (1950) | -6.0°F (1983) | 0.60 in (1965) |
| December 25 | 50.0°F (1980) | -2.0°F (1990) | 0.27 in (1959) |
| December 26 | 50.0°F (1980) | -2.9°F (1948) | 0.80 in (1965) |
| December 27 | 55.0°F (1980) | -8.0°F (1968) | 0.55 in (1974) |
| December 28 | 48.0°F (1937) | -16.1°F (1968) | 0.40 in (1945) |
| December 29 | 48.0°F (1980) | -16.1°F (1968) | 1.00 in (1996) |
| December 30 | 44.1°F (1998) | -17.0°F (1968) | 0.45 in (1935) |
| December 31 | 46.0°F (1980) | -18.0°F (1978) | 0.60 in (1993) |