December weather in Rexburg, ID
The average temperature in Rexburg in December is 22.6°F (15.1°F–30.1°F). Average precipitation: 1.08 inches.
December is a winter month in Rexburg, and is cooler than the annual average of 44.8°F. Daily temperatures swing about 15°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 8h 44m. For travel, December is cold.
Avg High
30.1°F
Avg Low
15.1°F
Precipitation
1.08 in
Daylight
8h 44m
December records in Rexburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 61.0°F (1995) | -7.1°F (1983) | 0.31 in (2010) |
| December 2 | 52.0°F (2021) | -7.1°F (2009) | 0.33 in (2013) |
| December 3 | 51.1°F (2021) | -11.0°F (2013) | 0.90 in (1992) |
| December 4 | 54.0°F (1987) | -18.0°F (1992) | 1.17 in (2025) |
| December 5 | 50.0°F (2021) | -16.1°F (1992) | 0.30 in (1983) |
| December 6 | 48.0°F (1987) | -8.0°F (1992) | 4.75 in (1998) |
| December 7 | 54.0°F (1987) | -14.1°F (2005) | 0.40 in (1995) |
| December 8 | 51.1°F (2025) | -13.0°F (2013) | 0.15 in (2023) |
| December 9 | 52.0°F (2015) | -5.1°F (1978) | 0.24 in (1978) |
| December 10 | 51.1°F (2025) | -11.9°F (2009) | 0.19 in (1987) |
| December 11 | 51.1°F (2025) | -9.9°F (2009) | 0.29 in (1995) |
| December 12 | 55.0°F (2014) | -6.0°F (2009) | 0.21 in (1977) |
| December 13 | 55.0°F (2014) | -0.9°F (1984) | 0.40 in (2015) |
| December 14 | 50.0°F (2025) | -11.0°F (1984) | 0.23 in (1977) |
| December 15 | 48.0°F (2025) | -6.0°F (1978) | 0.28 in (1977) |
| December 16 | 52.0°F (2025) | -9.0°F (1985) | 0.25 in (2016) |
| December 17 | 53.1°F (2025) | -17.0°F (2016) | 0.48 in (1984) |
| December 18 | 43.0°F (1979) | -17.0°F (2016) | 0.34 in (1977) |
| December 19 | 46.9°F (1979) | -20.0°F (1998) | 0.11 in (2025) |
| December 20 | 44.1°F (1979) | -17.0°F (1998) | 0.36 in (1981) |
| December 21 | 45.0°F (2025) | -22.0°F (1990) | 0.25 in (2015) |
| December 22 | 46.9°F (2025) | -31.0°F (1990) | 0.51 in (2025) |
| December 23 | 48.9°F (2025) | -31.0°F (1983) | 0.45 in (1982) |
| December 24 | 53.1°F (2025) | -29.9°F (1983) | 0.75 in (2016) |
| December 25 | 52.0°F (2025) | -13.0°F (1990) | 0.76 in (2025) |
| December 26 | 46.0°F (2025) | -7.1°F (2015) | 0.48 in (2006) |
| December 27 | 50.0°F (1980) | -17.0°F (1988) | 0.20 in (2006) |
| December 28 | 55.0°F (1980) | -13.0°F (1983) | 0.48 in (2005) |
| December 29 | 42.1°F (2004) | -17.0°F (1978) | 0.50 in (1995) |
| December 30 | 48.9°F (2011) | -18.9°F (1990) | 0.25 in (1981) |
| December 31 | 48.9°F (2011) | -20.9°F (1978) | 0.30 in (2005) |