Weather on December 21 at Great Basin
Great Basin National Park
Based on 55 years of data from Ely, NV
Elevation Note: Great Basin sits at 6,800 ft. Expect temperatures 24°F cooler than the data shown below, which comes from Ely, NV at a lower elevation.
Planning Your Visit
December 21st in Great Basin National Park (via Ely, NV) typically brings chilly winter weather, with average highs around 40°F and lows near 12°F — a 28°F daily swing. Over 55 years of records, the warmest December 21st was in 2025 (46°F average), while the coldest was 1990 (-10°F) — a 56°F range across recorded history. Precipitation has occurred on 20% of recorded December 21st dates, with snow falling 16% of the time (heaviest snowfall: 5.2"). The last decade has been 8.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.2°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Great Basin? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 54°F | 39°F | 0" | 0" |
| 2024 | 58°F | 25°F | 0" | 0" |
| 2023 | 52°F | 21°F | 0" | 0" |
| 2022 | 43°F | 9°F | 0" | 0" |
| 2021 | 42°F | 9°F | 0" | 0" |
| 2020 | 58°F | 20°F | 0" | 0" |
| 2019 | 47°F | 23°F | 0" | 0" |
| 2018 | 50°F | 26°F | 0" | 0" |
| 2017 | 28°F | -2°F | 0" | 0" |
| 2016 | 35°F | 26°F | 0" | 0" |
| 2015 | 39°F | 25°F | 0.05" | 0.4" |
| 2014 | 50°F | 33°F | 0.15" | 0" |
| 2013 | 37°F | 11°F | 0.05" | 0.2" |
| 2012 | 37°F | 20°F | 0" | 0" |
| 2011 | 39°F | 6°F | 0" | 0" |
| 2010 | 41°F | 21°F | 0.99" | 4.7" |
| 2009 | 43°F | 9°F | 0" | 0" |
| 2008 | 44°F | 8°F | 0.03" | 0.5" |
| 2007 | 23°F | -5°F | 0" | 0" |
| 2006 | 39°F | -2°F | 0" | 0" |
| 2005 | 59°F | 26°F | 0" | 0" |
| 2004 | 39°F | 12°F | 0" | 0" |
| 2003 | 41°F | 26°F | 0.13" | 0" |
| 2002 | 30°F | 5°F | 0.13" | 0.5" |
| 2001 | 32°F | 2°F | 0.18" | 1.5" |
| 2000 | 54°F | 20°F | 0" | 0" |
| 1999 | 39°F | 13°F | 0" | 0" |
| 1998 | 14°F | -19°F | 0" | 0" |
| 1997 | 26°F | 11°F | 0" | -- |
| 1996 | 38°F | 30°F | 0" | -- |
| 1995 | 23°F | -4°F | 0" | -- |
| 1994 | 52°F | 11°F | 0" | 0" |
| 1993 | 35°F | -5°F | 0" | 0" |
| 1992 | 41°F | -4°F | 0" | 0" |
| 1991 | 49°F | -3°F | 0" | 0" |
| 1990 | 5°F | -26°F | 0" | 0" |
| 1989 | 44°F | 10°F | 0" | 0" |
| 1988 | 33°F | 14°F | 0.76" | 5.2" |
| 1987 | 48°F | 20°F | 0" | 0" |
| 1986 | 41°F | 8°F | 0" | 0" |
| 1985 | 48°F | 7°F | 0" | 0" |
| 1984 | 32°F | -6°F | 0" | 0" |
| 1983 | 28°F | -3°F | 0" | 0" |
| 1982 | 45°F | 32°F | 0" | 0" |
| 1981 | 41°F | 25°F | 0.03" | 0.1" |
| 1980 | 50°F | 21°F | 0" | 0" |
| 1979 | 37°F | 19°F | 0.13" | 0.5" |
| 1978 | 36°F | -1°F | 0" | 0" |
| 1977 | 32°F | 1°F | 0" | 0" |
| 1976 | 40°F | -1°F | 0" | 0" |
| 1975 | 49°F | 20°F | 0" | 0" |
| 1974 | 52°F | 21°F | 0" | 0" |
| 1973 | 41°F | 22°F | 0" | 0" |
| 1972 | 50°F | 20°F | 0" | 0" |
| 1971 | 37°F | 18°F | 0" | 0" |