December weather in Clayton, ID
The average temperature in Clayton in December is °F (°F–°F). Average precipitation: 3.76 inches.
December is a winter month in Clayton, and is cooler than the annual average of 0°F. Expect about 14 days with precipitation. Daylight averages about 8h 41m.
Avg High
°F
Avg Low
°F
Precipitation
3.76 in
Daylight
8h 41m
December records in Clayton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 49.1°F (2021) | -2.7°F (1990) | 1.00 in (2001) |
| December 2 | 47.3°F (1989) | -5.4°F (2009) | 1.50 in (2012) |
| December 3 | 46.0°F (2024) | -10.3°F (2013) | 0.90 in (2007) |
| December 4 | 45.5°F (2024) | -19.7°F (2013) | 0.50 in (1993) |
| December 5 | 45.1°F (2020) | -18.4°F (2013) | 0.40 in (1996) |
| December 6 | 44.2°F (2023) | -18.9°F (2013) | 1.00 in (1987) |
| December 7 | 44.4°F (2020) | -16.2°F (2009) | 0.60 in (2015) |
| December 8 | 48.2°F (2020) | -17.5°F (2009) | 0.90 in (1993) |
| December 9 | 45.0°F (2017) | -13.2°F (2013) | 0.60 in (2016) |
| December 10 | 43.2°F (2017) | -11.4°F (2009) | 0.70 in (1984) |
| December 11 | 51.8°F (2017) | -9.0°F (1989) | 0.30 in (1990) |
| December 12 | 46.9°F (2017) | -3.8°F (1990) | 1.90 in (1995) |
| December 13 | 44.2°F (2025) | -4.4°F (1992) | 0.90 in (2021) |
| December 14 | 48.0°F (2025) | -2.9°F (1996) | 0.70 in (2003) |
| December 15 | 41.7°F (2025) | -6.0°F (1992) | 0.50 in (2016) |
| December 16 | 41.4°F (2023) | -12.6°F (2016) | 1.00 in (1982) |
| December 17 | 43.5°F (2023) | -15.3°F (2016) | 0.90 in (1982) |
| December 18 | 43.3°F (2003) | -20.4°F (1998) | 0.70 in (2025) |
| December 19 | 44.2°F (2003) | -22.2°F (1998) | 0.80 in (2025) |
| December 20 | 46.8°F (2024) | -29.0°F (1990) | 0.70 in (1982) |
| December 21 | 43.5°F (2024) | -24.5°F (1998) | 1.20 in (1982) |
| December 22 | 39.2°F (1994) | -15.2°F (1990) | 0.60 in (2025) |
| December 23 | 39.6°F (1999) | -14.6°F (1990) | 1.20 in (2021) |
| December 24 | 43.5°F (1999) | -4.0°F (1997) | 0.40 in (2008) |
| December 25 | 43.2°F (1999) | -7.1°F (1990) | 0.50 in (1998) |
| December 26 | 45.0°F (1999) | -6.2°F (2015) | 0.60 in (1992) |
| December 27 | 44.8°F (1999) | -4.7°F (2021) | 1.00 in (2002) |
| December 28 | 49.1°F (1999) | -9.8°F (1990) | 0.70 in (2005) |
| December 29 | 42.6°F (2023) | -22.9°F (1990) | 1.70 in (1996) |
| December 30 | 46.0°F (2025) | -10.8°F (2014) | 0.90 in (2011) |
| December 31 | 48.6°F (2025) | -12.5°F (2021) | 1.50 in (1996) |