December weather in Duncan, OK
The average temperature in Duncan in December is 42.1°F (30.7°F–53.6°F). Average precipitation: 2.04 inches. Average snowfall is 0.8 inches.
December is a winter month in Duncan, and is cooler than the annual average of 61.9°F. Daily temperatures swing about 22.9°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 9h 42m. For travel, December is cool.
Avg High
53.6°F
Avg Low
30.7°F
Precipitation
2.04 in
Snow
0.8 in
December records in Duncan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 81.0°F (1950) | 12.0°F (2006) | 0.27 in (1955) |
| December 2 | 79.0°F (1951) | 12.0°F (1985) | 0.72 in (1991) |
| December 3 | 78.1°F (1995) | 12.9°F (1985) | 1.70 in (2011) |
| December 4 | 82.0°F (1954) | 18.0°F (1945) | 1.43 in (2002) |
| December 5 | 79.0°F (1956) | 14.0°F (1950) | 1.08 in (1944) |
| December 6 | 75.0°F (1946) | 7.0°F (1950) | 1.14 in (1943) |
| December 7 | 82.0°F (1966) | 9.0°F (1950) | 1.33 in (1960) |
| December 8 | 75.0°F (1952) | 7.0°F (2005) | 1.61 in (1980) |
| December 9 | 73.0°F (2003) | 7.0°F (2005) | 1.59 in (1946) |
| December 10 | 79.0°F (1939) | 12.9°F (1977) | 2.12 in (1946) |
| December 11 | 78.1°F (1939) | 14.0°F (1978) | 0.88 in (1963) |
| December 12 | 77.0°F (1973) | 8.1°F (1989) | 1.80 in (1991) |
| December 13 | 73.9°F (1948) | 8.1°F (1989) | 1.16 in (1993) |
| December 14 | 82.0°F (1948) | 7.0°F (1958) | 1.68 in (1992) |
| December 15 | 75.9°F (2008) | 5.0°F (1943) | 1.38 in (1984) |
| December 16 | 77.0°F (1948) | 8.1°F (1989) | 1.18 in (1959) |
| December 17 | 75.0°F (2006) | 10.0°F (1964) | 1.07 in (1959) |
| December 18 | 75.9°F (2002) | 9.0°F (1964) | 0.75 in (1959) |
| December 19 | 73.0°F (1962) | 9.0°F (1983) | 1.33 in (1956) |
| December 20 | 75.0°F (1978) | 10.0°F (1983) | 2.80 in (1991) |
| December 21 | 77.0°F (2010) | 5.0°F (1983) | 1.55 in (2013) |
| December 22 | 75.9°F (1969) | -2.0°F (1989) | 0.46 in (1991) |
| December 23 | 73.9°F (1979) | 1.0°F (1983) | 1.43 in (2002) |
| December 24 | 88.0°F (1955) | 6.1°F (1990) | 1.12 in (2023) |
| December 25 | 84.9°F (1955) | 3.9°F (1983) | 1.00 in (2009) |
| December 26 | 71.1°F (1954) | 3.9°F (1983) | 1.75 in (1987) |
| December 27 | 77.0°F (1946) | 14.0°F (2010) | 2.03 in (2018) |
| December 28 | 73.0°F (2005) | 17.1°F (1946) | 0.88 in (1943) |
| December 29 | 82.0°F (1951) | 3.9°F (1983) | 1.27 in (1969) |
| December 30 | 82.0°F (1951) | 5.0°F (1983) | 1.75 in (2020) |
| December 31 | 84.0°F (1951) | 3.9°F (1968) | 0.62 in (2018) |