December weather in Barnett, MO
The average temperature in Barnett in December is 35.9°F (26.7°F–45.1°F). Average precipitation: 2.36 inches.
December is a winter month in Barnett, and is cooler than the annual average of 56.1°F. Daily temperatures swing about 18.4°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 9h 20m. For travel, December is cool.
Avg High
45.1°F
Avg Low
26.7°F
Precipitation
2.36 in
Daylight
9h 20m
December records in Barnett
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 71.1°F (1982) | 9.0°F (1929) | 2.30 in (1894) |
| December 2 | 71.1°F (1950) | -7.1°F (1985) | 0.78 in (1914) |
| December 3 | 73.9°F (1916) | -11.9°F (1985) | 3.28 in (1982) |
| December 4 | 75.9°F (2021) | 3.9°F (1929) | 2.05 in (1973) |
| December 5 | 73.0°F (1956) | 9.0°F (1898) | 1.89 in (1999) |
| December 6 | 75.9°F (1998) | 1.0°F (1950) | 1.40 in (2014) |
| December 7 | 75.9°F (1946) | -0.9°F (1976) | 1.43 in (1956) |
| December 8 | 70.0°F (1966) | -11.0°F (1917) | 1.50 in (1956) |
| December 9 | 77.0°F (1991) | -2.9°F (1917) | 1.35 in (1946) |
| December 10 | 70.0°F (2020) | -9.9°F (1917) | 1.31 in (1971) |
| December 11 | 75.9°F (1949) | -4.0°F (1917) | 2.03 in (1985) |
| December 12 | 70.0°F (1920) | -9.9°F (1962) | 2.00 in (2007) |
| December 13 | 77.0°F (1948) | -9.0°F (1917) | 3.50 in (2000) |
| December 14 | 71.1°F (1975) | -20.0°F (1898) | 6.30 in (2000) |
| December 15 | 75.0°F (1948) | -13.0°F (1901) | 1.08 in (1975) |
| December 16 | 73.9°F (2021) | -11.9°F (1989) | 1.13 in (1940) |
| December 17 | 68.0°F (1939) | -8.0°F (1989) | 3.33 in (1895) |
| December 18 | 73.0°F (1939) | -9.0°F (1901) | 4.45 in (1895) |
| December 19 | 69.1°F (2002) | -9.0°F (1901) | 1.77 in (1973) |
| December 20 | 69.1°F (1941) | -24.0°F (1901) | 1.75 in (2011) |
| December 21 | 64.9°F (1990) | -7.1°F (1963) | 1.32 in (1991) |
| December 22 | 66.0°F (1946) | -20.0°F (1989) | 1.22 in (2013) |
| December 23 | 68.0°F (1964) | -25.1°F (1989) | 2.01 in (1932) |
| December 24 | 73.9°F (1955) | -20.0°F (1989) | 1.66 in (1932) |
| December 25 | 75.0°F (2025) | -16.1°F (1983) | 0.90 in (1982) |
| December 26 | 75.0°F (2025) | -5.1°F (1983) | 0.87 in (1942) |
| December 27 | 75.9°F (1946) | -2.9°F (1924) | 4.30 in (2015) |
| December 28 | 75.0°F (2025) | -11.0°F (1924) | 2.00 in (2015) |
| December 29 | 72.0°F (2025) | -11.0°F (1917) | 1.47 in (2019) |
| December 30 | 72.0°F (1965) | -8.0°F (1917) | 0.92 in (1990) |
| December 31 | 73.0°F (1951) | -9.0°F (1976) | 1.20 in (1947) |