Weather on March 21 at Yosemite
Yosemite National Park
Based on 43 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
March 21st in Yosemite National Park (via Mariposa, CA) typically brings mild spring weather, with average highs around 63°F and lows near 41°F. Over 43 years of records, the warmest March 21st was in 2026 (69°F average), while the coldest was 1991 (36°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 2% of March 21st dates historically. The last decade has been 4.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.7°F cooler on this date compared to 20-30 years ago.
Planning for March 21st in Yosemite? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 81°F | 58°F | -- | -- |
| 2025 | 63°F | 40°F | -- | -- |
| 2024 | 69°F | 43°F | -- | -- |
| 2023 | 49°F | 39°F | -- | -- |
| 2022 | 65°F | 36°F | -- | -- |
| 2021 | 57°F | 32°F | -- | -- |
| 2020 | 58°F | 39°F | -- | -- |
| 2019 | 55°F | 38°F | -- | -- |
| 2018 | 56°F | 48°F | -- | -- |
| 2017 | 62°F | 45°F | -- | -- |
| 2016 | 59°F | 44°F | -- | -- |
| 2015 | 73°F | 44°F | -- | -- |
| 2014 | 70°F | 44°F | -- | -- |
| 2013 | 62°F | 41°F | -- | -- |
| 2012 | 68°F | 38°F | -- | -- |
| 2011 | 46°F | 32°F | -- | -- |
| 2010 | 70°F | 42°F | -- | -- |
| 2009 | 63°F | 44°F | -- | -- |
| 2008 | 63°F | 36°F | -- | -- |
| 2007 | 57°F | 41°F | -- | -- |
| 2006 | 52°F | 31°F | -- | -- |
| 2005 | 60°F | 37°F | -- | -- |
| 2004 | 83°F | 52°F | -- | -- |
| 2003 | 64°F | 38°F | -- | -- |
| 2002 | 75°F | 45°F | -- | -- |
| 2001 | 77°F | 50°F | -- | -- |
| 2000 | 64°F | 34°F | -- | -- |
| 1999 | 57°F | 36°F | -- | -- |
| 1998 | 68°F | 46°F | -- | -- |
| 1997 | 71°F | 49°F | -- | -- |
| 1996 | 73°F | 44°F | -- | -- |
| 1995 | 48°F | 35°F | -- | -- |
| 1994 | 63°F | 46°F | -- | -- |
| 1993 | 68°F | 45°F | -- | -- |
| 1992 | 50°F | 44°F | -- | -- |
| 1991 | 44°F | 29°F | -- | -- |
| 1977 | 63°F | 40°F | 0" | 0" |
| 1976 | 60°F | 35°F | 0" | 0" |
| 1975 | 54°F | 32°F | 0" | 0" |
| 1974 | 68°F | 41°F | 0" | 0" |
| 1973 | 52°F | 33°F | 0.08" | 0" |
| 1972 | 77°F | 47°F | 0" | 0" |
| 1971 | 69°F | 40°F | 0" | 0" |