Weather on September 1 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
September 1st in Yosemite National Park (via Mariposa, CA) typically brings hot fall weather, with average highs around 91°F and lows near 60°F — a 31°F daily swing. Over 43 years of records, the warmest September 1st was in 2022 (86°F average), while the coldest was 2000 (61°F) — a 25°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 1st in Yosemite? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 77°F | 53°F | -- | -- |
| 2025 | 103°F | 68°F | -- | -- |
| 2024 | 99°F | 67°F | -- | -- |
| 2023 | 76°F | 56°F | -- | -- |
| 2022 | 103°F | 69°F | -- | -- |
| 2021 | 87°F | 57°F | -- | -- |
| 2020 | 93°F | 63°F | -- | -- |
| 2019 | 98°F | 63°F | -- | -- |
| 2018 | 87°F | 56°F | -- | -- |
| 2017 | 99°F | 71°F | -- | -- |
| 2016 | 88°F | 57°F | -- | -- |
| 2015 | 90°F | 58°F | -- | -- |
| 2014 | 93°F | 60°F | -- | -- |
| 2013 | 90°F | 66°F | -- | -- |
| 2012 | 83°F | 52°F | -- | -- |
| 2011 | 91°F | 59°F | -- | -- |
| 2010 | 93°F | 56°F | -- | -- |
| 2009 | 96°F | 63°F | -- | -- |
| 2008 | 82°F | 50°F | -- | -- |
| 2007 | 99°F | 72°F | -- | -- |
| 2006 | 96°F | 62°F | -- | -- |
| 2005 | 97°F | 57°F | -- | -- |
| 2004 | 97°F | 64°F | -- | -- |
| 2003 | 101°F | 65°F | -- | -- |
| 2002 | 100°F | 62°F | -- | -- |
| 2001 | 94°F | 59°F | -- | -- |
| 2000 | 68°F | 54°F | -- | -- |
| 1999 | 80°F | 50°F | -- | -- |
| 1998 | 100°F | 68°F | -- | -- |
| 1997 | 92°F | 61°F | -- | -- |
| 1996 | 96°F | 62°F | -- | -- |
| 1995 | 95°F | 61°F | -- | -- |
| 1994 | 86°F | 64°F | -- | -- |
| 1993 | 92°F | 62°F | -- | -- |
| 1992 | 83°F | 54°F | -- | -- |
| 1991 | 93°F | 60°F | -- | -- |
| 1990 | 81°F | 52°F | -- | -- |
| 1976 | 102°F | 61°F | 0" | 0" |
| 1975 | 88°F | 54°F | 0" | 0" |
| 1974 | 93°F | 60°F | 0" | 0" |
| 1973 | 89°F | 58°F | 0" | 0" |
| 1972 | 100°F | 67°F | 0" | 0" |
| 1971 | 80°F | 50°F | 0" | 0" |