December weather in Mankato, MN
The average temperature in Mankato in December is 20.6°F (12.7°F–28.6°F). Average precipitation: 1.13 inches. Average snowfall is 8.6 inches.
December is a winter month in Mankato, and is cooler than the annual average of 45.3°F. Daily temperatures swing about 15.9°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 8h 42m. For travel, December is cold.
Avg High
28.6°F
Avg Low
12.7°F
Precipitation
1.13 in
Snow
8.6 in
December records in Mankato
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 50.0°F (1990) | 1.9°F (1991) | 0.55 in (1985) |
| December 2 | 69.1°F (1998) | -11.9°F (1985) | 0.67 in (2007) |
| December 3 | 62.1°F (1998) | -15.0°F (1985) | 0.18 in (1990) |
| December 4 | 63.0°F (1998) | -11.9°F (1991) | 0.37 in (1992) |
| December 5 | 60.1°F (2001) | -11.9°F (1991) | 0.18 in (2003) |
| December 6 | 63.0°F (2001) | -14.1°F (1985) | 0.14 in (2004) |
| December 7 | 46.0°F (2002) | -9.9°F (2005) | 0.02 in (1987) |
| December 8 | 46.9°F (1984) | -4.0°F (2005) | 0.24 in (1995) |
| December 9 | 52.0°F (1990) | -8.0°F (1995) | 0.32 in (2009) |
| December 10 | 54.0°F (1990) | -13.0°F (1995) | 0.37 in (2003) |
| December 11 | 48.0°F (2006) | -13.0°F (1995) | 0.16 in (2000) |
| December 12 | 52.0°F (1998) | -13.0°F (2000) | 0.19 in (1991) |
| December 13 | 52.0°F (1998) | -22.0°F (1985) | 0.29 in (1991) |
| December 14 | 51.1°F (1998) | -20.9°F (1985) | 0.47 in (1992) |
| December 15 | 57.0°F (1998) | -16.1°F (1989) | 0.73 in (1996) |
| December 16 | 48.9°F (1997) | -14.1°F (2008) | 1.12 in (1984) |
| December 17 | 48.0°F (2006) | -18.0°F (1985) | 0.23 in (1990) |
| December 18 | 46.9°F (2001) | -20.0°F (1985) | 0.22 in (2000) |
| December 19 | 45.0°F (1988) | -20.0°F (1985) | 0.23 in (2000) |
| December 20 | 45.0°F (2006) | -17.0°F (1989) | 0.08 in (1990) |
| December 21 | 41.0°F (1994) | -23.1°F (1989) | 0.23 in (2008) |
| December 22 | 42.1°F (2003) | -23.1°F (1989) | 0.54 in (2006) |
| December 23 | 44.1°F (2005) | -26.0°F (1990) | 0.36 in (2001) |
| December 24 | 44.1°F (2005) | -25.1°F (1990) | 0.65 in (2009) |
| December 25 | 42.1°F (1994) | -23.1°F (2000) | 0.72 in (2009) |
| December 26 | 48.0°F (1999) | -22.0°F (1990) | 0.27 in (2007) |
| December 27 | 43.0°F (2002) | -18.0°F (1990) | 0.21 in (1988) |
| December 28 | 50.0°F (2003) | -20.9°F (1993) | 0.45 in (1987) |
| December 29 | 46.0°F (2006) | -20.9°F (1993) | 0.34 in (2000) |
| December 30 | 57.0°F (1999) | -11.9°F (1990) | 0.42 in (2005) |
| December 31 | 55.0°F (2004) | -13.0°F (1990) | 0.79 in (2006) |