December weather in Winner, SD
The average temperature in Winner in December is 26.5°F (16.0°F–37.0°F). Average precipitation: 0.69 inches. Average snowfall is 9.6 inches.
December is a winter month in Winner, and is cooler than the annual average of 49.7°F. Daily temperatures swing about 21°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 8h 48m. For travel, December is cold.
Avg High
37.0°F
Avg Low
16.0°F
Precipitation
0.69 in
Snow
9.6 in
December records in Winner
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 73.9°F (1998) | -7.1°F (1985) | 0.65 in (2015) |
| December 2 | 72.0°F (1998) | -11.9°F (1985) | 0.68 in (1913) |
| December 3 | 71.1°F (2012) | -5.1°F (1978) | 0.63 in (1955) |
| December 4 | 64.9°F (1995) | -4.0°F (1964) | 0.75 in (1910) |
| December 5 | 69.1°F (1988) | -8.0°F (2005) | 0.80 in (1910) |
| December 6 | 75.9°F (1939) | -16.1°F (1950) | 0.80 in (1951) |
| December 7 | 68.0°F (2023) | -11.9°F (2013) | 0.18 in (1914) |
| December 8 | 72.0°F (2023) | -16.1°F (2013) | 0.28 in (1995) |
| December 9 | 70.0°F (1939) | -20.0°F (1977) | 0.30 in (2022) |
| December 10 | 80.1°F (1913) | -11.0°F (1927) | 0.70 in (1989) |
| December 11 | 75.0°F (1939) | -9.9°F (1932) | 1.20 in (2021) |
| December 12 | 64.9°F (1924) | -18.9°F (1932) | 0.83 in (1949) |
| December 13 | 63.0°F (1988) | -13.0°F (1914) | 0.23 in (1951) |
| December 14 | 70.0°F (1998) | -18.0°F (1989) | 0.80 in (2022) |
| December 15 | 64.0°F (1939) | -27.0°F (1932) | 0.90 in (2022) |
| December 16 | 63.0°F (1939) | -27.0°F (1951) | 0.50 in (2022) |
| December 17 | 70.0°F (1976) | -18.0°F (1964) | 0.33 in (2016) |
| December 18 | 66.9°F (1979) | -18.9°F (1924) | 0.10 in (1936) |
| December 19 | 64.9°F (1988) | -17.0°F (1924) | 0.19 in (1968) |
| December 20 | 70.0°F (1941) | -15.0°F (1990) | 0.35 in (1983) |
| December 21 | 66.9°F (1933) | -26.0°F (1989) | 0.75 in (2006) |
| December 22 | 68.0°F (1933) | -29.0°F (1989) | 0.65 in (1952) |
| December 23 | 70.0°F (2025) | -23.1°F (1983) | 0.60 in (1987) |
| December 24 | 59.0°F (1940) | -25.1°F (1983) | 0.35 in (1982) |
| December 25 | 66.0°F (1979) | -20.0°F (1983) | 0.85 in (1964) |
| December 26 | 62.1°F (2025) | -18.0°F (1996) | 0.66 in (2023) |
| December 27 | 68.0°F (1928) | -17.0°F (1925) | 0.20 in (1987) |
| December 28 | 60.1°F (2002) | -18.9°F (1924) | 0.38 in (2015) |
| December 29 | 62.1°F (1945) | -20.9°F (1990) | 0.91 in (2019) |
| December 30 | 60.1°F (1933) | -24.0°F (1990) | 0.61 in (1931) |
| December 31 | 60.1°F (1963) | -22.0°F (1967) | 1.10 in (2010) |