December weather in Webster, SD
The average temperature in Webster in December is 17.3°F (9.2°F–25.4°F). Average precipitation: 1.06 inches. Average snowfall is 7.8 inches.
December is a winter month in Webster, and is cooler than the annual average of 42.7°F. Daily temperatures swing about 16.2°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 8h 33m. For travel, December is cold.
Avg High
25.4°F
Avg Low
9.2°F
Precipitation
1.06 in
Snow
7.8 in
December records in Webster
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 55.9°F (1962) | -23.1°F (1896) | 0.72 in (2015) |
| December 2 | 57.0°F (2012) | -25.1°F (1895) | 0.29 in (1968) |
| December 3 | 54.0°F (1962) | -15.0°F (1985) | 0.47 in (1953) |
| December 4 | 53.1°F (1893) | -13.0°F (1991) | 0.47 in (1895) |
| December 5 | 55.0°F (1894) | -11.9°F (2005) | 0.84 in (1960) |
| December 6 | 55.0°F (1894) | -27.9°F (1972) | 0.32 in (1993) |
| December 7 | 63.0°F (1894) | -18.0°F (1972) | 0.28 in (1895) |
| December 8 | 62.1°F (2023) | -22.0°F (1976) | 0.51 in (1963) |
| December 9 | 57.0°F (2006) | -23.1°F (1977) | 0.30 in (1973) |
| December 10 | 48.9°F (2002) | -22.0°F (1977) | 0.31 in (2025) |
| December 11 | 46.0°F (1967) | -15.0°F (1961) | 0.77 in (1965) |
| December 12 | 50.0°F (1998) | -27.9°F (1893) | 0.16 in (2018) |
| December 13 | 48.0°F (1998) | -18.9°F (1985) | 0.51 in (2022) |
| December 14 | 54.0°F (1894) | -23.1°F (1989) | 0.40 in (1996) |
| December 15 | 48.0°F (1962) | -23.1°F (1963) | 0.47 in (2014) |
| December 16 | 55.0°F (1962) | -20.0°F (1963) | 0.88 in (2022) |
| December 17 | 55.9°F (1962) | -20.9°F (1964) | 0.62 in (1977) |
| December 18 | 54.0°F (1894) | -25.1°F (2016) | 1.00 in (2000) |
| December 19 | 57.9°F (1894) | -29.9°F (1983) | 0.38 in (2002) |
| December 20 | 63.0°F (1894) | -22.0°F (1983) | 0.50 in (2000) |
| December 21 | 48.0°F (1894) | -31.0°F (1989) | 0.27 in (1993) |
| December 22 | 51.1°F (1894) | -27.0°F (1989) | 0.39 in (1968) |
| December 23 | 57.0°F (1894) | -32.1°F (1983) | 0.30 in (1996) |
| December 24 | 51.1°F (2023) | -27.9°F (1983) | 0.38 in (1893) |
| December 25 | 51.1°F (2023) | -23.1°F (1996) | 0.41 in (2009) |
| December 26 | 48.0°F (2011) | -23.1°F (1990) | 0.75 in (2016) |
| December 27 | 44.1°F (1980) | -24.0°F (1894) | 1.50 in (2001) |
| December 28 | 46.0°F (1974) | -18.9°F (1993) | 3.25 in (2000) |
| December 29 | 54.0°F (1999) | -20.9°F (1990) | 0.40 in (2019) |
| December 30 | 46.0°F (1980) | -29.0°F (1976) | 0.38 in (2020) |
| December 31 | 46.0°F (1980) | -34.1°F (1967) | 0.70 in (2010) |