Weather on September 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
September 21st in Great Basin National Park (via Ely, NV) typically brings pleasant fall weather, with average highs around 73°F and lows near 34°F — a 39°F daily swing. Over 55 years of records, the warmest September 21st was in 2000 (66°F average), while the coldest was 2004 (37°F) — a 29°F range across recorded history. Precipitation has occurred on 15% of recorded September 21st dates, with snow falling 2% of the time (heaviest snowfall: 5"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 21st in Great Basin? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 77°F | 43°F | 0" | 0" |
| 2024 | 76°F | 35°F | 0" | 0" |
| 2023 | 64°F | 37°F | 0.66" | 0" |
| 2022 | 74°F | 44°F | 0" | 0" |
| 2021 | 78°F | 25°F | 0" | 0" |
| 2020 | 82°F | 36°F | 0" | 0" |
| 2019 | 66°F | 26°F | 0" | 0" |
| 2018 | 80°F | 31°F | 0" | 0" |
| 2017 | 58°F | 31°F | 1.98" | 5" |
| 2016 | 75°F | 43°F | 0.91" | 0" |
| 2015 | 86°F | 39°F | 0" | 0" |
| 2014 | 72°F | 45°F | 0.86" | 0" |
| 2013 | 77°F | 45°F | 0" | 0" |
| 2012 | 82°F | 38°F | 0" | 0" |
| 2011 | 82°F | 37°F | 0" | 0" |
| 2010 | 81°F | 30°F | 0" | 0" |
| 2009 | 68°F | 32°F | 0" | 0" |
| 2008 | 75°F | 32°F | 0" | 0" |
| 2007 | 75°F | 36°F | 0" | 0" |
| 2006 | 64°F | 26°F | 0" | 0" |
| 2005 | 65°F | 41°F | 0.08" | 0" |
| 2004 | 55°F | 19°F | 0" | 0" |
| 2003 | 80°F | 30°F | 0" | 0" |
| 2002 | 81°F | 34°F | 0" | 0" |
| 2001 | 83°F | 40°F | 0" | 0" |
| 2000 | 80°F | 51°F | 0" | 0" |
| 1999 | 78°F | 39°F | 0" | 0" |
| 1998 | 61°F | 35°F | 0.05" | 0" |
| 1997 | 66°F | 34°F | 0" | -- |
| 1996 | 80°F | 37°F | 0" | -- |
| 1995 | 66°F | 29°F | 0" | -- |
| 1994 | 78°F | 32°F | 0" | 0" |
| 1993 | 75°F | 28°F | 0" | 0" |
| 1992 | 81°F | 35°F | 0" | 0" |
| 1991 | 81°F | 39°F | 0" | 0" |
| 1990 | 77°F | 31°F | 0" | 0" |
| 1989 | 70°F | 32°F | 0" | 0" |
| 1988 | 55°F | 32°F | 0.2" | 0" |
| 1987 | 82°F | 33°F | 0" | 0" |
| 1986 | 65°F | 23°F | 0" | 0" |
| 1985 | 70°F | 30°F | 0" | 0" |
| 1984 | 65°F | 41°F | 0" | 0" |
| 1983 | 78°F | 24°F | 0" | 0" |
| 1982 | 80°F | 35°F | 0" | 0" |
| 1981 | 81°F | 41°F | 0" | 0" |
| 1980 | 63°F | 38°F | 0" | 0" |
| 1979 | 81°F | 39°F | 0" | 0" |
| 1978 | 68°F | 23°F | 0" | 0" |
| 1977 | 64°F | 25°F | 0" | 0" |
| 1976 | 68°F | 40°F | 0.03" | 0" |
| 1975 | 71°F | 26°F | 0" | 0" |
| 1974 | 81°F | 33°F | 0" | 0" |
| 1973 | 74°F | 31°F | 0" | 0" |
| 1972 | 74°F | 33°F | 0" | 0" |
| 1971 | 61°F | 24°F | 0" | 0" |