December weather in Southport, IN
The average temperature in Southport in December is 31.7°F (24.2°F–39.2°F). Average precipitation: 3.27 inches.
December is a winter month in Southport, and is cooler than the annual average of 51.9°F. Daily temperatures swing about 15°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 12m. For travel, December is cold.
Avg High
39.2°F
Avg Low
24.2°F
Precipitation
3.27 in
Daylight
9h 12m
December records in Southport
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.0°F (1962) | 1.0°F (1958) | 2.65 in (2006) |
| December 2 | 68.0°F (1970) | 12.0°F (1985) | 0.64 in (1986) |
| December 3 | 73.0°F (1982) | 3.9°F (1991) | 1.80 in (1967) |
| December 4 | 68.0°F (2012) | 3.9°F (1991) | 1.74 in (1951) |
| December 5 | 69.1°F (1998) | 12.0°F (2008) | 1.01 in (2011) |
| December 6 | 69.1°F (2001) | 6.1°F (2007) | 1.03 in (1953) |
| December 7 | 72.0°F (1998) | -2.0°F (1977) | 1.76 in (1956) |
| December 8 | 66.0°F (1966) | -2.9°F (1977) | 0.56 in (1974) |
| December 9 | 64.0°F (1952) | -2.9°F (1958) | 1.40 in (1966) |
| December 10 | 66.9°F (1952) | -4.0°F (1958) | 1.28 in (1966) |
| December 11 | 66.9°F (1971) | -5.1°F (1977) | 1.61 in (1985) |
| December 12 | 63.0°F (1979) | -5.1°F (1977) | 0.95 in (1959) |
| December 13 | 59.0°F (1984) | -5.1°F (1962) | 1.07 in (2009) |
| December 14 | 66.0°F (1975) | 0.0°F (1985) | 0.91 in (1977) |
| December 15 | 69.1°F (1975) | -2.9°F (2010) | 1.55 in (1987) |
| December 16 | 62.1°F (1971) | -11.0°F (1951) | 0.72 in (2007) |
| December 17 | 66.9°F (1984) | -9.9°F (1951) | 1.16 in (2001) |
| December 18 | 61.0°F (1984) | -4.0°F (1985) | 1.69 in (1957) |
| December 19 | 59.0°F (1962) | -6.0°F (1963) | 1.25 in (2008) |
| December 20 | 61.0°F (1988) | -7.1°F (1981) | 1.00 in (2004) |
| December 21 | 63.0°F (1967) | -8.0°F (1963) | 0.59 in (1978) |
| December 22 | 66.0°F (1967) | -20.0°F (1989) | 0.92 in (2006) |
| December 23 | 59.0°F (1957) | -18.0°F (1989) | 1.79 in (2003) |
| December 24 | 62.1°F (1964) | -15.0°F (1983) | 1.05 in (1996) |
| December 25 | 64.0°F (1964) | -17.0°F (1983) | 1.12 in (1982) |
| December 26 | 64.0°F (1982) | -14.1°F (1983) | 1.16 in (1957) |
| December 27 | 59.0°F (2008) | -4.0°F (1983) | 0.70 in (1973) |
| December 28 | 66.0°F (1959) | 0.0°F (2004) | 1.32 in (1968) |
| December 29 | 66.0°F (1984) | -0.9°F (1961) | 0.38 in (1962) |
| December 30 | 64.0°F (1984) | -9.0°F (1983) | 2.73 in (1990) |
| December 31 | 66.9°F (1965) | -9.0°F (1983) | 1.04 in (2006) |