December weather in Twin Falls, ID
The average temperature in Twin Falls in December is 31.1°F (22.6°F–39.6°F). Average precipitation: 1.31 inches.
December is a winter month in Twin Falls, and is cooler than the annual average of 51.6°F. Daily temperatures swing about 17°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 8h 53m. For travel, December is cold.
Avg High
39.6°F
Avg Low
22.6°F
Precipitation
1.31 in
Daylight
8h 53m
December records in Twin Falls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.9°F (1999) | 9.0°F (1991) | 0.59 in (2005) |
| December 2 | 66.9°F (1995) | 10.0°F (1984) | 0.47 in (1992) |
| December 3 | 55.0°F (1998) | -0.9°F (1994) | 0.30 in (2010) |
| December 4 | 55.0°F (1980) | 5.0°F (1992) | 0.39 in (2005) |
| December 5 | 55.0°F (1980) | -2.9°F (1992) | 1.10 in (1994) |
| December 6 | 57.9°F (1987) | -0.9°F (1992) | 0.50 in (2001) |
| December 7 | 61.0°F (1987) | 3.9°F (2005) | 0.43 in (2003) |
| December 8 | 55.9°F (1981) | 1.0°F (2005) | 0.15 in (1985) |
| December 9 | 55.9°F (1993) | 1.0°F (2005) | 0.51 in (1992) |
| December 10 | 64.0°F (2004) | -7.1°F (2009) | 0.37 in (1987) |
| December 11 | 63.0°F (1993) | -9.0°F (1985) | 0.40 in (1996) |
| December 12 | 57.0°F (1995) | -8.0°F (1985) | 0.31 in (1995) |
| December 13 | 63.0°F (1995) | -6.0°F (1985) | 0.31 in (2006) |
| December 14 | 54.0°F (2002) | -4.0°F (1985) | 0.33 in (2001) |
| December 15 | 55.9°F (2006) | -4.0°F (1985) | 0.46 in (2009) |
| December 16 | 52.0°F (1981) | -2.9°F (1985) | 0.34 in (2009) |
| December 17 | 54.0°F (1982) | -2.9°F (2008) | 0.21 in (1992) |
| December 18 | 50.0°F (1997) | 0.0°F (1985) | 0.45 in (2010) |
| December 19 | 50.0°F (2003) | -2.0°F (1984) | 0.37 in (1981) |
| December 20 | 48.9°F (1981) | -0.9°F (1990) | 0.60 in (1981) |
| December 21 | 50.0°F (1981) | -20.9°F (1990) | 0.48 in (1996) |
| December 22 | 48.9°F (1982) | -20.0°F (1990) | 0.55 in (2008) |
| December 23 | 52.0°F (1980) | -20.9°F (1990) | 0.09 in (1987) |
| December 24 | 50.0°F (2005) | -18.0°F (1990) | 0.11 in (2007) |
| December 25 | 48.9°F (1980) | -9.0°F (1990) | 0.39 in (1996) |
| December 26 | 52.0°F (1980) | -4.0°F (1990) | 0.38 in (1996) |
| December 27 | 59.0°F (1980) | -2.0°F (1985) | 0.75 in (1996) |
| December 28 | 57.9°F (1980) | -6.0°F (1985) | 0.43 in (2005) |
| December 29 | 53.1°F (1980) | -5.1°F (1985) | 0.30 in (2010) |
| December 30 | 53.1°F (1996) | -17.0°F (1990) | 0.57 in (2005) |
| December 31 | 55.9°F (1996) | -15.0°F (1990) | 0.35 in (1983) |