Weather on October 21 at Yosemite
Yosemite National Park
Based on 42 years of data from Mariposa, CA
Elevation Note: Yosemite sits at 4,000 ft. Expect temperatures 14°F cooler than the data shown below, which comes from Mariposa, CA at a lower elevation.
Planning Your Visit
October 21st in Yosemite National Park (via Mariposa, CA) typically brings pleasant fall weather, with average highs around 76°F and lows near 48°F — a 28°F daily swing. Over 42 years of records, the warmest October 21st was in 2003 (76°F average), while the coldest was 2004 (49°F) — a 27°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Yosemite? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 85°F | 51°F | -- | -- |
| 2024 | 82°F | 50°F | -- | -- |
| 2023 | 81°F | 54°F | -- | -- |
| 2022 | 85°F | 54°F | -- | -- |
| 2021 | 79°F | 54°F | -- | -- |
| 2020 | 83°F | 54°F | -- | -- |
| 2019 | 76°F | 46°F | -- | -- |
| 2018 | 79°F | 50°F | -- | -- |
| 2017 | 63°F | 38°F | -- | -- |
| 2016 | 83°F | 50°F | -- | -- |
| 2015 | 74°F | 46°F | -- | -- |
| 2014 | 70°F | 47°F | -- | -- |
| 2013 | 83°F | 48°F | -- | -- |
| 2012 | 69°F | 46°F | -- | -- |
| 2011 | 76°F | 52°F | -- | -- |
| 2010 | 72°F | 47°F | -- | -- |
| 2009 | 67°F | 43°F | -- | -- |
| 2008 | 74°F | 47°F | -- | -- |
| 2007 | 67°F | 39°F | -- | -- |
| 2006 | 83°F | 48°F | -- | -- |
| 2005 | 80°F | 47°F | -- | -- |
| 2004 | 63°F | 35°F | -- | -- |
| 2003 | 95°F | 57°F | -- | -- |
| 2002 | 75°F | 46°F | -- | -- |
| 2001 | 81°F | 50°F | -- | -- |
| 2000 | 67°F | 45°F | -- | -- |
| 1999 | 87°F | 51°F | -- | -- |
| 1998 | 82°F | 50°F | -- | -- |
| 1997 | 74°F | 43°F | -- | -- |
| 1996 | 65°F | 37°F | -- | -- |
| 1995 | 77°F | 47°F | -- | -- |
| 1994 | 71°F | 52°F | -- | -- |
| 1993 | 75°F | 58°F | -- | -- |
| 1992 | 68°F | 51°F | -- | -- |
| 1991 | 87°F | 56°F | -- | -- |
| 1990 | 71°F | 41°F | -- | -- |
| 1976 | 80°F | 49°F | 0" | 0" |
| 1975 | 83°F | 48°F | 0" | 0" |
| 1974 | 83°F | 49°F | 0" | 0" |
| 1973 | 77°F | 51°F | 0" | 0" |
| 1972 | 67°F | 51°F | 0" | 0" |
| 1971 | 70°F | 39°F | 0" | 0" |