December weather in Agar, SD
The average temperature in Agar in December is 20.7°F (11.6°F–29.9°F). Average precipitation: 0.59 inches. Average snowfall is 7.7 inches.
December is a winter month in Agar, and is cooler than the annual average of 46°F. Daily temperatures swing about 18.3°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 8h 37m. For travel, December is cold.
Avg High
29.9°F
Avg Low
11.6°F
Precipitation
0.59 in
Snow
7.7 in
December records in Agar
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 69.1°F (1998) | -13.0°F (2014) | 0.50 in (1984) |
| December 2 | 61.0°F (2012) | -18.0°F (1985) | 0.71 in (1933) |
| December 3 | 73.0°F (1941) | -9.0°F (1985) | 0.30 in (1992) |
| December 4 | 60.1°F (1941) | -9.9°F (1927) | 0.40 in (1950) |
| December 5 | 63.0°F (1939) | -15.0°F (2005) | 0.30 in (1976) |
| December 6 | 69.1°F (1939) | -24.0°F (1950) | 0.89 in (1951) |
| December 7 | 62.1°F (2023) | -18.0°F (2013) | 0.21 in (2012) |
| December 8 | 57.9°F (1939) | -26.0°F (1927) | 0.49 in (2008) |
| December 9 | 63.0°F (1939) | -20.0°F (1927) | 0.12 in (2019) |
| December 10 | 60.1°F (1990) | -18.9°F (1937) | 0.45 in (1970) |
| December 11 | 60.1°F (1939) | -14.1°F (1962) | 0.41 in (1965) |
| December 12 | 55.0°F (2014) | -22.0°F (1932) | 0.15 in (1965) |
| December 13 | 57.0°F (1921) | -17.0°F (1922) | 0.20 in (1951) |
| December 14 | 60.1°F (1998) | -18.9°F (1963) | 1.15 in (2022) |
| December 15 | 60.1°F (1939) | -24.0°F (1951) | 0.32 in (2015) |
| December 16 | 57.9°F (1939) | -20.9°F (1951) | 0.38 in (2016) |
| December 17 | 55.9°F (1982) | -25.1°F (1922) | 0.40 in (1977) |
| December 18 | 61.0°F (1979) | -23.1°F (1924) | 0.25 in (1981) |
| December 19 | 55.0°F (1979) | -25.1°F (1927) | 0.28 in (2013) |
| December 20 | 57.9°F (1941) | -17.0°F (1990) | 0.35 in (1951) |
| December 21 | 60.1°F (1957) | -29.0°F (1989) | 0.10 in (1993) |
| December 22 | 61.0°F (2020) | -29.0°F (1989) | 0.44 in (1918) |
| December 23 | 55.0°F (1950) | -27.9°F (1983) | 0.30 in (1992) |
| December 24 | 51.1°F (1999) | -25.1°F (1983) | 0.22 in (1916) |
| December 25 | 54.0°F (1999) | -22.0°F (1933) | 0.81 in (2016) |
| December 26 | 52.0°F (1956) | -24.0°F (1996) | 1.17 in (2023) |
| December 27 | 57.9°F (1928) | -27.0°F (1924) | 0.13 in (1940) |
| December 28 | 55.9°F (1999) | -18.0°F (1924) | 0.20 in (1987) |
| December 29 | 57.0°F (1965) | -24.0°F (1990) | 1.00 in (1972) |
| December 30 | 54.0°F (2004) | -32.1°F (1990) | 0.63 in (2024) |
| December 31 | 53.1°F (1963) | -29.9°F (2017) | 0.85 in (2010) |