December weather in Island Park, ID
The average temperature in Island Park in December is °F (°F–°F). Average precipitation: 6.20 inches.
December is a winter month in Island Park, and is cooler than the annual average of 0°F. Expect about 15 days with precipitation. Daylight averages about 8h 39m.
Avg High
°F
Avg Low
°F
Precipitation
6.20 in
Daylight
8h 39m
December records in Island Park
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 43.5°F (2003) | -4.2°F (1991) | 1.80 in (2022) |
| December 2 | 40.8°F (1988) | 1.8°F (2009) | 2.00 in (1987) |
| December 3 | 49.3°F (1988) | -5.4°F (2013) | 2.10 in (1994) |
| December 4 | 52.3°F (1988) | -10.1°F (2013) | 1.60 in (2016) |
| December 5 | 45.1°F (2020) | -11.7°F (2013) | 1.40 in (2012) |
| December 6 | 41.2°F (2020) | -11.4°F (2013) | 1.70 in (2003) |
| December 7 | 41.7°F (2020) | -8.9°F (2005) | 1.70 in (2004) |
| December 8 | 43.0°F (2006) | -15.2°F (2013) | 1.30 in (1992) |
| December 9 | 42.8°F (1990) | -17.9°F (2013) | 1.00 in (1983) |
| December 10 | 43.9°F (2014) | -7.8°F (2009) | 1.70 in (1996) |
| December 11 | 43.7°F (1993) | -7.1°F (1989) | 1.50 in (1983) |
| December 12 | 46.6°F (2014) | 0.1°F (2001) | 1.80 in (1995) |
| December 13 | 40.1°F (2023) | -13.9°F (2008) | 1.90 in (2003) |
| December 14 | 44.8°F (2025) | -13.9°F (2008) | 1.70 in (2021) |
| December 15 | 39.7°F (2025) | -1.3°F (2000) | 1.40 in (2016) |
| December 16 | 40.8°F (1988) | -9.6°F (1992) | 1.00 in (2002) |
| December 17 | 48.6°F (1988) | -11.4°F (2016) | 1.20 in (2025) |
| December 18 | 40.8°F (1988) | -11.4°F (1996) | 0.90 in (2025) |
| December 19 | 41.7°F (2003) | -14.6°F (1990) | 1.50 in (1981) |
| December 20 | 39.2°F (2023) | -20.2°F (1990) | 1.20 in (2007) |
| December 21 | 37.2°F (1994) | -27.8°F (1990) | 2.20 in (1982) |
| December 22 | 47.8°F (1994) | -30.6°F (1990) | 1.50 in (2025) |
| December 23 | 42.8°F (1994) | -27.8°F (1990) | 1.50 in (2021) |
| December 24 | 42.1°F (1999) | -13.7°F (1990) | 1.70 in (2016) |
| December 25 | 47.1°F (1999) | -11.9°F (1990) | 1.80 in (2008) |
| December 26 | 50.4°F (1999) | -13.4°F (1988) | 1.30 in (1996) |
| December 27 | 50.0°F (1999) | -10.7°F (1988) | 2.00 in (1996) |
| December 28 | 39.7°F (1999) | -5.4°F (1990) | 1.80 in (2005) |
| December 29 | 39.6°F (2004) | -24.9°F (1990) | 2.20 in (1996) |
| December 30 | 42.3°F (2023) | -21.6°F (1990) | 1.60 in (2004) |
| December 31 | 38.8°F (2025) | -8.9°F (2010) | 1.60 in (2005) |