December weather in McLaughlin, SD
The average temperature in McLaughlin in December is 18.6°F (8.6°F–28.5°F). Average precipitation: 0.58 inches. Average snowfall is 10.2 inches.
December is a winter month in McLaughlin, and is cooler than the annual average of 43.3°F. Daily temperatures swing about 19.9°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 8h 29m. For travel, December is cold.
Avg High
28.5°F
Avg Low
8.6°F
Precipitation
0.58 in
Snow
10.2 in
December records in McLaughlin
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.9°F (1969) | -13.0°F (2014) | 0.43 in (1986) |
| December 2 | 70.0°F (2021) | -29.9°F (1985) | 0.37 in (1996) |
| December 3 | 52.0°F (1948) | -15.0°F (1985) | 0.53 in (1993) |
| December 4 | 70.0°F (1965) | -11.0°F (1972) | 0.50 in (1960) |
| December 5 | 63.0°F (1988) | -18.9°F (2005) | 0.83 in (1960) |
| December 6 | 59.0°F (1991) | -26.0°F (1972) | 0.60 in (2016) |
| December 7 | 62.1°F (2023) | -24.0°F (2013) | 0.32 in (1971) |
| December 8 | 55.9°F (1990) | -24.0°F (2013) | 0.17 in (1966) |
| December 9 | 57.0°F (1957) | -27.0°F (1977) | 0.40 in (2016) |
| December 10 | 62.1°F (1979) | -22.0°F (1972) | 0.41 in (1970) |
| December 11 | 55.9°F (2004) | -18.0°F (2013) | 0.62 in (1965) |
| December 12 | 51.1°F (1957) | -17.0°F (1977) | 0.20 in (1989) |
| December 13 | 53.1°F (1988) | -22.0°F (1985) | 1.20 in (1996) |
| December 14 | 61.0°F (1998) | -23.1°F (1989) | 0.80 in (1996) |
| December 15 | 54.0°F (1962) | -25.1°F (1989) | 0.80 in (1996) |
| December 16 | 59.0°F (1962) | -22.0°F (1983) | 0.30 in (2015) |
| December 17 | 57.0°F (1962) | -25.1°F (1983) | 0.28 in (1993) |
| December 18 | 61.0°F (1979) | -29.9°F (1983) | 0.09 in (2025) |
| December 19 | 55.9°F (2011) | -29.9°F (1983) | 0.22 in (1990) |
| December 20 | 55.9°F (1957) | -24.0°F (1989) | 0.25 in (1983) |
| December 21 | 53.1°F (1954) | -32.1°F (1989) | 0.10 in (1953) |
| December 22 | 57.0°F (1954) | -35.0°F (1989) | 0.36 in (2009) |
| December 23 | 52.0°F (2023) | -34.1°F (1983) | 0.30 in (1984) |
| December 24 | 46.0°F (1999) | -22.0°F (1980) | 0.35 in (2010) |
| December 25 | 50.0°F (1963) | -25.1°F (1984) | 0.55 in (2009) |
| December 26 | 51.1°F (1956) | -31.0°F (1983) | 1.10 in (2016) |
| December 27 | 53.1°F (2005) | -18.0°F (2017) | 0.35 in (1969) |
| December 28 | 53.1°F (1999) | -24.0°F (1990) | 0.20 in (1993) |
| December 29 | 54.0°F (1999) | -20.9°F (1984) | 1.00 in (1998) |
| December 30 | 50.0°F (1986) | -35.0°F (1990) | 1.18 in (2005) |
| December 31 | 57.0°F (1963) | -33.0°F (1967) | 0.50 in (2006) |