December weather in Rockland, ID
The average temperature in Rockland in December is 26.3°F (17.7°F–34.9°F). Average precipitation: 1.35 inches.
December is a winter month in Rockland, and is cooler than the annual average of 47.3°F. Daily temperatures swing about 17.2°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
34.9°F
Avg Low
17.7°F
Precipitation
1.35 in
Daylight
8h 53m
December records in Rockland
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.9°F (1995) | -4.0°F (1991) | 0.68 in (1982) |
| December 2 | 61.0°F (2012) | -0.9°F (2015) | 0.41 in (1992) |
| December 3 | 60.1°F (1987) | 0.0°F (2009) | 0.56 in (2001) |
| December 4 | 61.0°F (1975) | -13.0°F (1992) | 0.26 in (1998) |
| December 5 | 60.1°F (1987) | -11.9°F (1992) | 0.75 in (1995) |
| December 6 | 62.1°F (1981) | -9.9°F (1992) | 0.35 in (1994) |
| December 7 | 61.0°F (2014) | -6.0°F (2005) | 0.31 in (2010) |
| December 8 | 60.1°F (1981) | -7.1°F (2005) | 0.40 in (2003) |
| December 9 | 55.9°F (1981) | -2.9°F (2005) | 0.36 in (1993) |
| December 10 | 61.0°F (2015) | -11.0°F (2009) | 0.71 in (2016) |
| December 11 | 60.1°F (2025) | -16.1°F (2009) | 0.51 in (2000) |
| December 12 | 59.0°F (2014) | -9.9°F (1985) | 0.53 in (1996) |
| December 13 | 63.0°F (2014) | 1.9°F (2005) | 0.38 in (2014) |
| December 14 | 61.0°F (2025) | 5.0°F (1987) | 0.43 in (2024) |
| December 15 | 53.1°F (1977) | 3.0°F (1990) | 0.62 in (2021) |
| December 16 | 57.0°F (2006) | -2.0°F (1985) | 0.15 in (2016) |
| December 17 | 57.9°F (2025) | -2.0°F (1984) | 0.26 in (2002) |
| December 18 | 59.0°F (2025) | -2.9°F (1984) | 0.29 in (1990) |
| December 19 | 57.9°F (1979) | -4.0°F (1984) | 0.42 in (2010) |
| December 20 | 55.0°F (2025) | -4.0°F (1990) | 0.25 in (2005) |
| December 21 | 48.9°F (2003) | -26.0°F (1990) | 0.21 in (2014) |
| December 22 | 57.9°F (2025) | -26.0°F (1990) | 0.20 in (1987) |
| December 23 | 51.1°F (2025) | -25.1°F (1990) | 0.36 in (2017) |
| December 24 | 53.1°F (1980) | -20.0°F (1990) | 0.39 in (2006) |
| December 25 | 55.9°F (2025) | -7.1°F (1987) | 0.35 in (2016) |
| December 26 | 59.0°F (2025) | -5.1°F (1985) | 0.83 in (2003) |
| December 27 | 64.0°F (1980) | -9.0°F (1988) | 0.71 in (1996) |
| December 28 | 54.0°F (1980) | -15.0°F (1983) | 0.79 in (2006) |
| December 29 | 52.0°F (2011) | -11.9°F (1988) | 0.55 in (1992) |
| December 30 | 54.0°F (1996) | -22.0°F (1990) | 0.43 in (1981) |
| December 31 | 60.1°F (2011) | -16.1°F (1978) | 0.30 in (2022) |