December weather in Koshkonong, MO
The average temperature in Koshkonong in December is 38.2°F (26.5°F–49.8°F). Average precipitation: 3.79 inches.
December is a winter month in Koshkonong, and is cooler than the annual average of 57.4°F. Daily temperatures swing about 23.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 31m. For travel, December is cool.
Avg High
49.8°F
Avg Low
26.5°F
Precipitation
3.79 in
Daylight
9h 31m
December records in Koshkonong
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 78.1°F (1970) | 14.0°F (1929) | 1.48 in (2006) |
| December 2 | 75.0°F (1975) | 9.0°F (1960) | 1.89 in (1991) |
| December 3 | 80.1°F (1956) | -2.0°F (1929) | 12.36 in (1982) |
| December 4 | 77.0°F (2021) | -0.9°F (1929) | 2.10 in (1973) |
| December 5 | 80.1°F (1956) | 9.0°F (1929) | 1.75 in (2011) |
| December 6 | 75.0°F (1998) | 10.9°F (1937) | 2.45 in (1975) |
| December 7 | 75.0°F (1939) | 1.0°F (1984) | 1.72 in (1956) |
| December 8 | 77.0°F (1923) | 5.0°F (1917) | 3.82 in (1916) |
| December 9 | 77.0°F (1923) | -20.9°F (1917) | 1.78 in (1994) |
| December 10 | 75.9°F (1939) | -4.0°F (1917) | 2.48 in (1971) |
| December 11 | 75.9°F (2020) | 1.9°F (1995) | 1.50 in (1959) |
| December 12 | 78.1°F (1929) | -5.1°F (1917) | 1.30 in (1954) |
| December 13 | 75.9°F (1929) | 5.0°F (1917) | 5.24 in (1927) |
| December 14 | 75.9°F (1948) | -5.1°F (1914) | 1.97 in (2018) |
| December 15 | 78.1°F (1933) | -11.9°F (1916) | 2.30 in (1948) |
| December 16 | 71.1°F (1984) | -2.0°F (1914) | 1.63 in (2001) |
| December 17 | 73.9°F (1924) | 5.0°F (1914) | 2.02 in (2001) |
| December 18 | 75.0°F (1957) | 1.9°F (1964) | 2.60 in (2021) |
| December 19 | 73.9°F (1978) | 0.0°F (1981) | 1.45 in (1924) |
| December 20 | 71.1°F (1941) | -11.9°F (1945) | 1.27 in (1973) |
| December 21 | 68.0°F (1957) | 3.0°F (1973) | 3.83 in (1984) |
| December 22 | 70.0°F (1933) | -8.0°F (1916) | 1.32 in (1968) |
| December 23 | 73.0°F (1931) | -9.0°F (1989) | 1.69 in (2017) |
| December 24 | 78.1°F (1955) | -7.1°F (1963) | 3.95 in (1982) |
| December 25 | 78.1°F (2025) | -9.0°F (1983) | 1.40 in (1987) |
| December 26 | 77.0°F (2025) | -6.0°F (1983) | 1.10 in (1987) |
| December 27 | 79.0°F (1928) | 1.9°F (1924) | 2.50 in (1968) |
| December 28 | 73.0°F (1923) | -6.0°F (1925) | 3.30 in (2015) |
| December 29 | 77.0°F (2025) | -4.0°F (1925) | 6.26 in (1990) |
| December 30 | 75.0°F (1923) | -9.0°F (1983) | 1.80 in (1936) |
| December 31 | 77.0°F (1951) | -2.9°F (1983) | 2.58 in (2002) |