December weather in Delmont, SD
The average temperature in Delmont in December is 24.5°F (14.4°F–34.6°F). Average precipitation: 0.72 inches. Average snowfall is 5.1 inches.
December is a winter month in Delmont, and is cooler than the annual average of 48.9°F. Daily temperatures swing about 20.2°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 8h 48m. For travel, December is cold.
Avg High
34.6°F
Avg Low
14.4°F
Precipitation
0.72 in
Snow
5.1 in
December records in Delmont
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 69.1°F (1998) | -11.0°F (1897) | 0.50 in (1909) |
| December 2 | 70.0°F (1998) | -13.0°F (1919) | 3.00 in (2005) |
| December 3 | 68.0°F (1941) | -16.1°F (1902) | 1.14 in (1953) |
| December 4 | 61.0°F (1970) | -20.0°F (1905) | 0.50 in (1901) |
| December 5 | 66.0°F (1939) | -15.0°F (1910) | 0.50 in (1902) |
| December 6 | 72.0°F (1939) | -17.0°F (1950) | 0.56 in (1951) |
| December 7 | 64.9°F (1984) | -11.0°F (1972) | 0.70 in (1924) |
| December 8 | 66.0°F (1939) | -20.0°F (1927) | 0.50 in (1924) |
| December 9 | 66.9°F (1957) | -18.0°F (1955) | 0.25 in (1918) |
| December 10 | 64.9°F (1990) | -22.0°F (1917) | 0.60 in (1909) |
| December 11 | 63.0°F (1968) | -14.1°F (1927) | 0.80 in (1965) |
| December 12 | 59.0°F (1921) | -23.1°F (1932) | 0.42 in (1988) |
| December 13 | 64.9°F (1921) | -29.0°F (1917) | 0.60 in (1920) |
| December 14 | 64.9°F (1998) | -26.0°F (1901) | 0.80 in (1902) |
| December 15 | 63.0°F (1939) | -23.1°F (1922) | 0.61 in (1990) |
| December 16 | 64.9°F (1939) | -20.9°F (1989) | 0.44 in (1908) |
| December 17 | 63.0°F (1939) | -26.0°F (1922) | 0.30 in (1951) |
| December 18 | 64.9°F (1923) | -22.0°F (1901) | 0.10 in (1918) |
| December 19 | 55.9°F (1979) | -22.0°F (1901) | 0.25 in (1902) |
| December 20 | 66.9°F (1941) | -25.1°F (1916) | 0.52 in (2006) |
| December 21 | 64.0°F (1933) | -27.0°F (1989) | 1.10 in (1918) |
| December 22 | 64.9°F (1904) | -31.0°F (1989) | 1.36 in (1968) |
| December 23 | 59.0°F (1936) | -27.9°F (1983) | 0.50 in (1921) |
| December 24 | 57.9°F (1907) | -26.0°F (1983) | 0.42 in (1973) |
| December 25 | 60.1°F (1928) | -24.0°F (1902) | 0.39 in (1982) |
| December 26 | 60.1°F (1907) | -20.9°F (1996) | 0.30 in (1973) |
| December 27 | 68.0°F (1928) | -17.0°F (1924) | 0.64 in (1969) |
| December 28 | 64.9°F (1928) | -23.1°F (1909) | 0.65 in (1959) |
| December 29 | 61.0°F (1999) | -38.9°F (1917) | 0.70 in (1972) |
| December 30 | 62.1°F (2004) | -24.0°F (1990) | 7.00 in (2006) |
| December 31 | 63.0°F (1904) | -20.0°F (1973) | 0.50 in (1924) |