December weather in Optima, OK
The average temperature in Optima in December is 35.4°F (22.2°F–48.6°F). Average precipitation: 1.05 inches. Average snowfall is 4.0 inches.
December is a winter month in Optima, and is cooler than the annual average of 57.2°F. Daily temperatures swing about 26.4°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 9h 30m. For travel, December is cool.
Avg High
48.6°F
Avg Low
22.2°F
Precipitation
1.05 in
Snow
4.0 in
December records in Optima
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 78.1°F (1917) | 1.0°F (1985) | 0.43 in (1906) |
| December 2 | 80.1°F (1951) | 1.0°F (1985) | 0.80 in (1953) |
| December 3 | 75.9°F (1995) | 3.0°F (1985) | 2.40 in (1997) |
| December 4 | 81.0°F (1965) | 6.1°F (2009) | 1.82 in (1944) |
| December 5 | 75.0°F (1939) | -9.9°F (1909) | 0.37 in (1992) |
| December 6 | 82.9°F (1939) | -5.1°F (1972) | 0.74 in (1920) |
| December 7 | 80.1°F (2023) | -0.9°F (1909) | 0.46 in (1994) |
| December 8 | 73.9°F (1970) | -9.0°F (1917) | 0.20 in (1919) |
| December 9 | 75.9°F (1939) | -9.0°F (1919) | 1.32 in (1943) |
| December 10 | 75.0°F (1939) | -7.1°F (1919) | 0.47 in (2007) |
| December 11 | 82.9°F (2025) | -2.9°F (1916) | 0.39 in (2007) |
| December 12 | 77.0°F (1977) | -6.0°F (1961) | 0.36 in (1991) |
| December 13 | 75.9°F (1977) | -2.9°F (1917) | 1.21 in (2023) |
| December 14 | 78.1°F (2021) | 1.9°F (1914) | 1.87 in (2023) |
| December 15 | 72.0°F (1946) | -8.0°F (1943) | 0.78 in (1984) |
| December 16 | 73.9°F (1939) | 1.0°F (1943) | 0.28 in (1965) |
| December 17 | 79.0°F (1939) | 0.0°F (1989) | 0.60 in (1918) |
| December 18 | 72.0°F (1979) | -0.9°F (1924) | 0.44 in (1995) |
| December 19 | 71.1°F (1978) | -13.0°F (1924) | 2.75 in (1911) |
| December 20 | 73.0°F (1917) | -13.0°F (1924) | 1.12 in (2006) |
| December 21 | 69.1°F (1941) | -11.0°F (1916) | 0.70 in (1907) |
| December 22 | 81.0°F (2025) | -14.1°F (1989) | 0.42 in (1981) |
| December 23 | 81.0°F (1955) | -14.1°F (1989) | 0.60 in (1918) |
| December 24 | 84.9°F (1955) | -14.1°F (1924) | 1.20 in (1965) |
| December 25 | 84.0°F (2025) | -13.0°F (1924) | 0.14 in (1939) |
| December 26 | 78.1°F (2005) | -7.1°F (1924) | 1.61 in (2018) |
| December 27 | 77.0°F (2025) | -13.0°F (1911) | 1.10 in (2018) |
| December 28 | 73.0°F (1999) | -15.0°F (1915) | 0.55 in (2019) |
| December 29 | 73.9°F (1945) | -7.1°F (1983) | 3.32 in (2006) |
| December 30 | 75.9°F (1921) | -5.1°F (1983) | 1.10 in (2006) |
| December 31 | 75.0°F (1909) | -9.9°F (1911) | 0.26 in (1916) |