December weather in Port Washington, WI
The average temperature in Port Washington in December is 28.2°F (20.5°F–35.8°F). Average precipitation: 1.82 inches. Average snowfall is 10.7 inches.
December is a winter month in Port Washington, and is cooler than the annual average of 46.7°F. Daily temperatures swing about 15.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 8h 47m. For travel, December is cold.
Avg High
35.8°F
Avg Low
20.5°F
Precipitation
1.82 in
Snow
10.7 in
December records in Port Washington
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.0°F (1970) | -4.0°F (1897) | 1.19 in (1985) |
| December 2 | 62.1°F (1962) | -0.9°F (1976) | 2.00 in (1982) |
| December 3 | 64.9°F (1998) | 3.0°F (1985) | 2.50 in (1990) |
| December 4 | 59.0°F (1961) | 1.9°F (1895) | 1.31 in (1973) |
| December 5 | 63.0°F (2001) | 1.9°F (2005) | 1.20 in (1909) |
| December 6 | 68.0°F (2001) | -5.1°F (1972) | 0.90 in (1983) |
| December 7 | 53.1°F (1894) | -11.9°F (1972) | 0.51 in (1974) |
| December 8 | 54.0°F (1916) | -4.0°F (1898) | 0.76 in (1926) |
| December 9 | 53.1°F (1923) | -9.9°F (1995) | 1.14 in (2009) |
| December 10 | 53.1°F (1896) | -9.0°F (1972) | 1.24 in (1911) |
| December 11 | 54.0°F (1896) | -8.0°F (1972) | 1.20 in (1965) |
| December 12 | 57.0°F (1896) | -22.0°F (1903) | 1.65 in (1901) |
| December 13 | 57.9°F (1975) | -5.1°F (1961) | 0.95 in (1909) |
| December 14 | 60.1°F (1975) | -9.9°F (1926) | 0.76 in (1920) |
| December 15 | 55.0°F (1971) | -9.0°F (1926) | 2.01 in (1971) |
| December 16 | 51.1°F (1894) | -7.1°F (1988) | 0.76 in (1908) |
| December 17 | 52.0°F (2006) | -18.9°F (1897) | 0.44 in (1908) |
| December 18 | 52.0°F (1923) | -13.0°F (1983) | 0.65 in (1957) |
| December 19 | 52.0°F (1923) | -17.0°F (1983) | 1.10 in (1898) |
| December 20 | 57.0°F (1894) | -13.0°F (1924) | 1.65 in (1977) |
| December 21 | 54.0°F (1894) | -16.1°F (1989) | 0.40 in (1914) |
| December 22 | 48.9°F (1900) | -14.1°F (1983) | 0.89 in (2006) |
| December 23 | 55.9°F (1899) | -17.0°F (1983) | 1.19 in (2006) |
| December 24 | 57.0°F (1895) | -29.9°F (1903) | 1.73 in (1979) |
| December 25 | 60.1°F (1982) | -14.1°F (1983) | 1.18 in (2009) |
| December 26 | 46.9°F (1982) | -17.0°F (1914) | 2.10 in (1942) |
| December 27 | 52.0°F (1994) | -11.0°F (1925) | 1.26 in (1946) |
| December 28 | 52.0°F (1982) | -18.0°F (1924) | 1.05 in (1905) |
| December 29 | 52.0°F (1898) | -14.1°F (1976) | 0.72 in (1972) |
| December 30 | 48.0°F (1896) | -11.0°F (1976) | 1.20 in (1906) |
| December 31 | 55.9°F (2004) | -11.9°F (1967) | 0.67 in (1978) |