December weather in West Yellowstone, MT
The average temperature in West Yellowstone in December is °F (°F–°F). Average precipitation: 3.00 inches.
December is a winter month in West Yellowstone, and is cooler than the annual average of 0°F. Expect about 12 days with precipitation. Daylight averages about 8h 38m.
Avg High
°F
Avg Low
°F
Precipitation
3.00 in
Daylight
8h 38m
December records in West Yellowstone
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 45.9°F (2003) | -21.5°F (2009) | 1.00 in (2022) |
| December 2 | 44.4°F (2021) | -31.7°F (2009) | 0.80 in (2012) |
| December 3 | 43.0°F (2017) | -31.5°F (2009) | 1.00 in (2007) |
| December 4 | 40.6°F (2014) | -31.4°F (2013) | 0.50 in (2016) |
| December 5 | 41.2°F (2014) | -32.3°F (2011) | 0.50 in (2012) |
| December 6 | 43.9°F (2023) | -34.8°F (2013) | 0.40 in (2003) |
| December 7 | 41.4°F (2014) | -40.7°F (2005) | 0.60 in (2015) |
| December 8 | 47.5°F (2014) | -37.5°F (2005) | 0.50 in (2019) |
| December 9 | 45.5°F (2014) | -27.8°F (2013) | 0.30 in (2016) |
| December 10 | 43.9°F (2014) | -21.8°F (2009) | 0.40 in (2010) |
| December 11 | 43.5°F (2014) | -25.4°F (2007) | 0.20 in (1999) |
| December 12 | 51.8°F (2014) | -18.0°F (2007) | 0.50 in (2012) |
| December 13 | 44.2°F (1998) | -13.5°F (2008) | 0.50 in (2006) |
| December 14 | 43.9°F (1998) | -15.5°F (2008) | 0.80 in (2021) |
| December 15 | 43.0°F (2025) | -10.8°F (2005) | 0.70 in (2016) |
| December 16 | 43.0°F (2025) | -26.9°F (2016) | 0.60 in (2016) |
| December 17 | 40.6°F (2018) | -42.5°F (2016) | 0.50 in (2025) |
| December 18 | 39.2°F (2025) | -33.2°F (2006) | 0.40 in (2025) |
| December 19 | 39.2°F (2023) | -26.5°F (2012) | 0.50 in (2008) |
| December 20 | 39.9°F (2024) | -36.9°F (1998) | 0.50 in (2016) |
| December 21 | 41.9°F (2023) | -45.8°F (1998) | 0.50 in (2025) |
| December 22 | 42.6°F (2023) | -49.0°F (2022) | 1.20 in (2025) |
| December 23 | 42.4°F (2019) | -37.1°F (1998) | 0.40 in (2021) |
| December 24 | 41.4°F (2025) | -28.5°F (2017) | 0.70 in (2025) |
| December 25 | 45.0°F (2025) | -20.4°F (2001) | 0.80 in (2008) |
| December 26 | 40.5°F (2025) | -24.3°F (2015) | 0.60 in (2021) |
| December 27 | 36.0°F (2006) | -24.0°F (2001) | 0.70 in (2022) |
| December 28 | 36.5°F (2004) | -23.4°F (2009) | 0.50 in (2005) |
| December 29 | 39.9°F (2004) | -22.0°F (2019) | 0.70 in (2003) |
| December 30 | 36.9°F (1998) | -35.3°F (2014) | 0.80 in (2011) |
| December 31 | 37.2°F (2005) | -32.3°F (2014) | 0.80 in (2004) |