December weather in Unionville, MO
The average temperature in Unionville in December is 28.7°F (20.3°F–37.2°F). Average precipitation: 1.91 inches. Average snowfall is 5.8 inches.
December is a winter month in Unionville, and is cooler than the annual average of 50.9°F. Daily temperatures swing about 16.9°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 9h 7m. For travel, December is cold.
Avg High
37.2°F
Avg Low
20.3°F
Precipitation
1.91 in
Snow
5.8 in
December records in Unionville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.9°F (1970) | 3.9°F (1905) | 0.90 in (1913) |
| December 2 | 66.9°F (1973) | -2.0°F (1929) | 0.92 in (2007) |
| December 3 | 63.0°F (1961) | -7.1°F (1919) | 1.05 in (1990) |
| December 4 | 69.1°F (1916) | -2.0°F (1940) | 1.72 in (1947) |
| December 5 | 66.9°F (1975) | 0.0°F (1895) | 1.55 in (1909) |
| December 6 | 66.0°F (1939) | -5.1°F (1950) | 0.95 in (1913) |
| December 7 | 73.0°F (1894) | -9.0°F (1976) | 1.45 in (1980) |
| December 8 | 66.9°F (1946) | -14.1°F (1917) | 2.42 in (1980) |
| December 9 | 64.9°F (1939) | -15.0°F (1917) | 0.80 in (2009) |
| December 10 | 61.0°F (1939) | -14.1°F (1919) | 0.90 in (1911) |
| December 11 | 66.0°F (1965) | -11.0°F (1972) | 1.76 in (1970) |
| December 12 | 68.0°F (1949) | -9.9°F (1962) | 0.80 in (1903) |
| December 13 | 63.0°F (1991) | -15.0°F (1989) | 1.75 in (1901) |
| December 14 | 62.1°F (1975) | -14.1°F (1901) | 1.86 in (2011) |
| December 15 | 64.0°F (1908) | -18.9°F (1989) | 2.80 in (1971) |
| December 16 | 63.0°F (1939) | -16.1°F (1932) | 1.11 in (1940) |
| December 17 | 68.0°F (1939) | -11.9°F (1932) | 0.60 in (1921) |
| December 18 | 70.0°F (1939) | -14.1°F (2016) | 1.11 in (1895) |
| December 19 | 60.1°F (1931) | -14.1°F (2016) | 0.75 in (1968) |
| December 20 | 64.9°F (1941) | -16.1°F (1901) | 1.32 in (2012) |
| December 21 | 62.1°F (1941) | -18.9°F (1989) | 1.05 in (2006) |
| December 22 | 64.9°F (1933) | -23.1°F (1989) | 0.75 in (1949) |
| December 23 | 66.0°F (1933) | -29.0°F (1989) | 0.87 in (2007) |
| December 24 | 61.0°F (2015) | -29.0°F (1989) | 2.53 in (1895) |
| December 25 | 64.0°F (1922) | -16.1°F (2013) | 0.80 in (1909) |
| December 26 | 62.1°F (2019) | -16.1°F (1914) | 0.98 in (1941) |
| December 27 | 64.9°F (1946) | -15.0°F (1914) | 2.17 in (1942) |
| December 28 | 66.9°F (1984) | -25.1°F (1924) | 0.85 in (1927) |
| December 29 | 59.0°F (1936) | -16.1°F (1917) | 1.10 in (2019) |
| December 30 | 63.0°F (1965) | -18.0°F (1917) | 0.95 in (1971) |
| December 31 | 63.0°F (1965) | -15.0°F (1976) | 1.30 in (1906) |