Weather on January 21 at Yellowstone
Yellowstone National Park
Based on 56 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
January 21st in Yellowstone National Park (via Jackson, WY) typically brings very cold winter weather, with average highs around 27°F and lows near 4°F. Over 56 years of records, the warmest January 21st was in 2003 (38°F average), while the coldest was 1984 (-15°F) — a 53°F range across recorded history. Precipitation has occurred on 25% of recorded January 21st dates, with snow falling 21% of the time (heaviest snowfall: 4.5"). The last decade has been 9.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 9.6°F cooler on this date compared to 20-30 years ago.
Planning for January 21st in Yellowstone? Bundle up with warm layers and protect extremities from the cold. Check road conditions if traveling, as snow is possible.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 36°F | -4°F | 0" | 0" |
| 2025 | -3°F | -20°F | 0" | 0" |
| 2024 | 39°F | 27°F | 0" | 0" |
| 2023 | 12°F | -9°F | 0" | 0" |
| 2022 | 27°F | 9°F | 0.36" | 2" |
| 2021 | 30°F | -5°F | 0" | 0" |
| 2020 | 15°F | -2°F | 0" | 0" |
| 2019 | 35°F | 21°F | -- | -- |
| 2018 | 30°F | 7°F | 0" | 0" |
| 2017 | 27°F | 8°F | 0.05" | 0.5" |
| 2016 | 30°F | 5°F | 0" | 0" |
| 2015 | 30°F | -2°F | 0" | 0" |
| 2014 | 28°F | -7°F | 0" | 0" |
| 2013 | 17°F | -11°F | 0" | 0" |
| 2012 | 39°F | 29°F | 0.33" | -- |
| 2011 | 31°F | 13°F | 0.1" | 0" |
| 2010 | 32°F | 4°F | 0.38" | -- |
| 2009 | 12°F | -12°F | 0" | 0" |
| 2008 | 30°F | 1°F | 0" | 0" |
| 2007 | 24°F | -7°F | 0.36" | 3" |
| 2006 | 34°F | 21°F | -- | -- |
| 2005 | 36°F | 15°F | -- | -- |
| 2004 | 22°F | -8°F | -- | -- |
| 2003 | 45°F | 31°F | 0.23" | 0.5" |
| 2002 | 30°F | 19°F | -- | -- |
| 2001 | 24°F | -10°F | -- | -- |
| 2000 | 38°F | 24°F | 0.03" | 0.5" |
| 1999 | 37°F | 19°F | 0.38" | 3" |
| 1998 | 32°F | 18°F | -- | 0.1" |
| 1997 | 34°F | 27°F | 0.38" | 2.5" |
| 1996 | 28°F | 22°F | 0" | 0" |
| 1995 | 18°F | 0°F | 0" | -- |
| 1994 | 32°F | -3°F | 0" | 0" |
| 1993 | 39°F | 22°F | 0.23" | 1" |
| 1992 | 16°F | -16°F | 0" | 0" |
| 1991 | 11°F | -21°F | 0" | 0" |
| 1990 | 10°F | -14°F | 0" | 0" |
| 1989 | 18°F | -6°F | 0" | 0" |
| 1988 | 20°F | -1°F | 0" | 0" |
| 1987 | 18°F | 5°F | 0" | 0" |
| 1986 | 29°F | 3°F | 0" | 0" |
| 1985 | 31°F | 20°F | 0.03" | 0.5" |
| 1984 | 2°F | -32°F | 0" | 0" |
| 1983 | 25°F | -2°F | 0" | 0" |
| 1982 | 24°F | 4°F | 0.61" | 4.5" |
| 1981 | 36°F | 0°F | 0" | 0" |
| 1980 | 18°F | -11°F | 0" | 0" |
| 1979 | 31°F | 4°F | 0" | 0" |
| 1978 | 28°F | 3°F | 0" | 0" |
| 1977 | 28°F | -6°F | 0" | 0" |
| 1976 | 24°F | -4°F | 0" | 0" |
| 1975 | 37°F | -1°F | 0" | 0.3" |
| 1974 | 30°F | 16°F | 0" | 0" |
| 1973 | 17°F | -3°F | 0" | 0" |
| 1972 | 36°F | 34°F | 1.27" | 0" |
| 1971 | 39°F | 19°F | 0" | 0" |