Weather on December 17 at Yellowstone
Yellowstone National Park
Based on 55 years of data from Jackson, WY
Elevation Note: Yellowstone sits at 7,350 ft. Expect temperatures 26°F cooler than the data shown below, which comes from Jackson, WY at a lower elevation.
Planning Your Visit
December 17th in Yellowstone National Park (via Jackson, WY) typically brings very cold winter weather, with average highs around 29°F and lows near 7°F. Over 55 years of records, the warmest December 17th was in 2025 (43°F average), while the coldest was 1978 (-5°F) — a 48°F range across recorded history. Precipitation has occurred on 49% of recorded December 17th dates, with snow falling 40% of the time (heaviest snowfall: 10.5"). The last decade has been 6.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.1°F cooler on this date compared to 20-30 years ago.
Planning for December 17th in Yellowstone? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 50°F | 35°F | 1.17" | 0" |
| 2024 | 31°F | 22°F | 0.76" | 5" |
| 2023 | 24°F | 3°F | 0" | 0" |
| 2022 | 12°F | -9°F | 0.05" | 0.6" |
| 2021 | 24°F | 16°F | 0.38" | 2.2" |
| 2020 | 31°F | 24°F | 0.15" | 1.1" |
| 2019 | 20°F | -8°F | 0" | 0" |
| 2018 | 27°F | -1°F | 0" | 0" |
| 2017 | 29°F | -1°F | 0.08" | 0.2" |
| 2016 | 36°F | -15°F | 0.41" | 0.8" |
| 2015 | 22°F | -6°F | 0.1" | 0.9" |
| 2014 | 23°F | 10°F | 0.08" | 0.5" |
| 2013 | 30°F | 0°F | 0" | 0" |
| 2012 | 31°F | 22°F | 0.79" | 2.8" |
| 2011 | 27°F | 1°F | 0" | -- |
| 2010 | 29°F | -10°F | 0" | 0" |
| 2009 | 33°F | 4°F | 0" | 0" |
| 2008 | 20°F | 8°F | 0" | 0" |
| 2007 | 31°F | 8°F | 0" | 0" |
| 2006 | 26°F | 4°F | -- | -- |
| 2005 | 13°F | -4°F | 0.25" | -- |
| 2004 | 39°F | 21°F | -- | 0" |
| 2003 | 38°F | 11°F | -- | -- |
| 2002 | 39°F | 21°F | 0.3" | 2" |
| 2001 | 31°F | 16°F | 0.3" | 3" |
| 2000 | 32°F | 23°F | 0.51" | 10.5" |
| 1999 | 41°F | 29°F | 0.1" | 0.8" |
| 1998 | 47°F | 9°F | -- | -- |
| 1997 | 37°F | 18°F | 0.05" | 0" |
| 1996 | 26°F | -12°F | 0" | 0" |
| 1995 | 42°F | 20°F | 0.18" | 0" |
| 1994 | 33°F | 21°F | 0.76" | -- |
| 1993 | 29°F | -2°F | 0" | 0" |
| 1992 | 14°F | -4°F | 0.13" | 1" |
| 1991 | 17°F | -7°F | 0" | 0" |
| 1990 | 9°F | -18°F | 0" | 0.3" |
| 1989 | 18°F | 1°F | 0.03" | 0.2" |
| 1988 | 13°F | -7°F | 0" | 0" |
| 1987 | 32°F | 11°F | 0.13" | 0.2" |
| 1986 | 19°F | -9°F | 0" | 0" |
| 1985 | 33°F | 7°F | 0" | 0" |
| 1984 | 22°F | 3°F | 0" | 0" |
| 1983 | 27°F | -9°F | 0.05" | 0.5" |
| 1982 | 45°F | 32°F | 0.08" | 1" |
| 1981 | 35°F | 25°F | 0" | -- |
| 1980 | 28°F | 10°F | 0" | -- |
| 1979 | 50°F | 9°F | 0" | 0" |
| 1978 | 7°F | -17°F | 0.56" | 5" |
| 1977 | 26°F | 10°F | 1.12" | 6" |
| 1976 | 32°F | -8°F | 0" | 0" |
| 1975 | 27°F | -3°F | 0" | 0" |
| 1974 | 34°F | 22°F | 0.89" | 3.5" |
| 1973 | 37°F | 34°F | 0.56" | 0" |
| 1972 | 39°F | 5°F | 0" | 0" |
| 1971 | 31°F | 18°F | 0" | 0" |