December weather in Lamar Heights, MO
The average temperature in Lamar Heights in December is 36.0°F (26.4°F–45.6°F). Average precipitation: 2.43 inches. Average snowfall is 0.7 inches.
December is a winter month in Lamar Heights, and is cooler than the annual average of 55.9°F. Daily temperatures swing about 19.2°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 9h 25m. For travel, December is cool.
Avg High
45.6°F
Avg Low
26.4°F
Precipitation
2.43 in
Snow
0.7 in
December records in Lamar Heights
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 72.0°F (1917) | 8.1°F (1964) | 1.65 in (2006) |
| December 2 | 73.9°F (1982) | 3.9°F (1985) | 1.25 in (1982) |
| December 3 | 75.0°F (1916) | 3.9°F (1985) | 1.10 in (1990) |
| December 4 | 72.0°F (1906) | 8.1°F (1898) | 2.00 in (1973) |
| December 5 | 73.0°F (2001) | 12.0°F (1899) | 2.25 in (1999) |
| December 6 | 75.0°F (1946) | -2.9°F (1950) | 1.45 in (1974) |
| December 7 | 73.9°F (1922) | -2.9°F (1950) | 1.32 in (1926) |
| December 8 | 75.0°F (1966) | -9.0°F (1917) | 1.70 in (1980) |
| December 9 | 75.0°F (1939) | -11.9°F (1917) | 1.15 in (2007) |
| December 10 | 73.0°F (1939) | -9.9°F (1917) | 2.08 in (1971) |
| December 11 | 75.0°F (1929) | 3.9°F (1937) | 1.90 in (1985) |
| December 12 | 72.0°F (1949) | -4.0°F (1932) | 1.33 in (1972) |
| December 13 | 69.1°F (1929) | -2.0°F (1962) | 1.17 in (1897) |
| December 14 | 75.9°F (1948) | -9.0°F (1898) | 2.95 in (1992) |
| December 15 | 71.1°F (1975) | -9.0°F (1916) | 2.30 in (1971) |
| December 16 | 75.9°F (2021) | -9.9°F (1989) | 0.71 in (1970) |
| December 17 | 72.0°F (2006) | -9.9°F (1989) | 1.95 in (1928) |
| December 18 | 73.0°F (1939) | -2.9°F (2016) | 4.07 in (1895) |
| December 19 | 66.9°F (1941) | -7.1°F (1945) | 1.75 in (1895) |
| December 20 | 71.1°F (1978) | -9.9°F (1983) | 1.45 in (1987) |
| December 21 | 68.0°F (1949) | -5.1°F (1951) | 1.50 in (1991) |
| December 22 | 66.0°F (1893) | -15.0°F (1989) | 1.15 in (1997) |
| December 23 | 70.0°F (1982) | -18.0°F (1989) | 2.00 in (1932) |
| December 24 | 73.0°F (1982) | -13.0°F (1989) | 2.40 in (1932) |
| December 25 | 75.9°F (2025) | -14.1°F (1983) | 1.28 in (1957) |
| December 26 | 77.0°F (2025) | -11.9°F (1983) | 1.15 in (1987) |
| December 27 | 72.0°F (1946) | -2.0°F (1983) | 2.75 in (1942) |
| December 28 | 75.0°F (2025) | -5.1°F (1924) | 1.25 in (1927) |
| December 29 | 72.0°F (1947) | -6.0°F (1983) | 1.35 in (1954) |
| December 30 | 68.0°F (1984) | -11.0°F (1983) | 1.06 in (1971) |
| December 31 | 70.0°F (1965) | -9.0°F (1983) | 0.84 in (2018) |