December weather in Altamont, SD
The average temperature in Altamont in December is 17.4°F (8.9°F–26.0°F). Average precipitation: 0.91 inches. Average snowfall is 13.6 inches.
December is a winter month in Altamont, and is cooler than the annual average of 42.4°F. Daily temperatures swing about 17.1°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 8h 37m. For travel, December is cold.
Avg High
26.0°F
Avg Low
8.9°F
Precipitation
0.91 in
Snow
13.6 in
December records in Altamont
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 60.1°F (1998) | -9.9°F (1985) | 0.69 in (2015) |
| December 2 | 60.1°F (1998) | -14.1°F (1976) | 0.40 in (2018) |
| December 3 | 55.9°F (1962) | -18.0°F (1985) | 1.26 in (1953) |
| December 4 | 51.1°F (2012) | -13.0°F (1991) | 0.40 in (2013) |
| December 5 | 53.1°F (1907) | -11.0°F (2005) | 0.64 in (1960) |
| December 6 | 50.0°F (1907) | -25.1°F (1972) | 0.35 in (1951) |
| December 7 | 48.9°F (1965) | -18.0°F (1972) | 0.15 in (1957) |
| December 8 | 55.0°F (1990) | -18.9°F (2013) | 0.52 in (1963) |
| December 9 | 55.9°F (1990) | -22.0°F (1955) | 0.64 in (2012) |
| December 10 | 54.0°F (2006) | -20.9°F (1977) | 0.16 in (1970) |
| December 11 | 50.0°F (2002) | -17.0°F (1972) | 0.88 in (1949) |
| December 12 | 51.1°F (1998) | -18.9°F (2000) | 1.05 in (1903) |
| December 13 | 51.1°F (1998) | -22.0°F (1903) | 0.25 in (1992) |
| December 14 | 55.0°F (1998) | -22.0°F (1989) | 0.26 in (1973) |
| December 15 | 54.0°F (2002) | -18.9°F (1961) | 0.36 in (2008) |
| December 16 | 57.9°F (1962) | -23.1°F (1963) | 0.45 in (2015) |
| December 17 | 46.9°F (1962) | -18.9°F (1964) | 0.61 in (1977) |
| December 18 | 52.0°F (1962) | -26.0°F (2016) | 0.50 in (1908) |
| December 19 | 53.1°F (1979) | -27.9°F (1955) | 0.18 in (1968) |
| December 20 | 50.0°F (1979) | -24.0°F (1983) | 0.16 in (2013) |
| December 21 | 53.1°F (1979) | -29.9°F (1989) | 0.46 in (2010) |
| December 22 | 48.0°F (1907) | -26.0°F (1989) | 1.10 in (1968) |
| December 23 | 48.0°F (1986) | -29.0°F (1983) | 0.90 in (1945) |
| December 24 | 43.0°F (1986) | -27.9°F (1983) | 0.50 in (2010) |
| December 25 | 44.1°F (1994) | -20.9°F (2013) | 0.72 in (2009) |
| December 26 | 57.9°F (1907) | -20.0°F (1990) | 0.67 in (2016) |
| December 27 | 48.0°F (2011) | -18.0°F (1993) | 0.55 in (2018) |
| December 28 | 45.0°F (1999) | -20.0°F (1993) | 1.20 in (1959) |
| December 29 | 52.0°F (1999) | -20.9°F (1909) | 1.21 in (2019) |
| December 30 | 48.0°F (1980) | -25.1°F (1990) | 0.75 in (2005) |
| December 31 | 52.0°F (2004) | -29.9°F (1967) | 0.78 in (2006) |