December weather in Williams, AZ
The average temperature in Williams in December is 33.9°F (20.8°F–47.0°F). Average precipitation: 1.94 inches. Average snowfall is 13.5 inches.
December is a winter month in Williams, and is cooler than the annual average of 50.2°F. Daily temperatures swing about 26.2°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 9h 38m. For travel, December is cool.
Avg High
47.0°F
Avg Low
20.8°F
Precipitation
1.94 in
Snow
13.5 in
December records in Williams
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 70.0°F (1903) | -0.9°F (1931) | 2.34 in (2007) |
| December 2 | 69.1°F (1911) | 3.0°F (1913) | 0.88 in (1947) |
| December 3 | 68.0°F (1903) | -2.0°F (1931) | 1.57 in (1908) |
| December 4 | 69.1°F (2007) | 0.0°F (1931) | 1.35 in (2019) |
| December 5 | 66.9°F (1939) | 5.0°F (1931) | 1.24 in (1972) |
| December 6 | 63.0°F (2021) | -0.9°F (2013) | 1.40 in (1966) |
| December 7 | 64.0°F (1923) | -5.1°F (1978) | 1.55 in (1918) |
| December 8 | 64.9°F (1940) | -7.1°F (1978) | 1.31 in (2009) |
| December 9 | 66.0°F (1950) | -4.0°F (1947) | 1.10 in (1965) |
| December 10 | 69.1°F (1921) | -5.1°F (1947) | 1.64 in (1949) |
| December 11 | 69.1°F (1921) | 1.0°F (1898) | 1.25 in (1927) |
| December 12 | 66.9°F (1921) | -2.9°F (1949) | 2.20 in (1914) |
| December 13 | 66.9°F (1921) | -17.0°F (1931) | 1.45 in (1940) |
| December 14 | 64.0°F (1946) | -9.9°F (1945) | 1.12 in (2012) |
| December 15 | 70.0°F (1912) | -11.9°F (1940) | 1.33 in (1908) |
| December 16 | 68.0°F (1939) | -9.0°F (1928) | 2.44 in (1908) |
| December 17 | 66.9°F (1980) | -2.9°F (1927) | 0.60 in (1922) |
| December 18 | 64.9°F (1912) | -7.1°F (1927) | 1.10 in (2008) |
| December 19 | 66.0°F (2024) | -8.0°F (1924) | 2.10 in (1967) |
| December 20 | 68.0°F (1917) | -7.1°F (1924) | 1.00 in (1990) |
| December 21 | 70.0°F (1980) | -11.9°F (1897) | 1.10 in (1909) |
| December 22 | 86.0°F (2008) | -9.9°F (1990) | 1.26 in (2016) |
| December 23 | 64.0°F (1917) | -14.1°F (1926) | 1.91 in (1948) |
| December 24 | 64.9°F (1933) | -15.0°F (1926) | 1.16 in (2016) |
| December 25 | 64.9°F (1912) | -9.9°F (1926) | 1.36 in (1940) |
| December 26 | 69.1°F (1929) | -9.9°F (1926) | 2.40 in (1923) |
| December 27 | 73.9°F (1980) | -9.9°F (1926) | 1.48 in (1984) |
| December 28 | 68.0°F (1925) | -8.0°F (1926) | 2.50 in (1992) |
| December 29 | 68.0°F (1929) | -9.0°F (1932) | 3.98 in (2004) |
| December 30 | 71.1°F (1929) | -11.9°F (1911) | 2.97 in (1951) |
| December 31 | 69.1°F (1929) | -11.0°F (1911) | 2.21 in (1915) |