Weather on September 20 at Pinnacles
Pinnacles National Park
Based on 55 years of data from Salinas, CA
Elevation Note: Pinnacles sits at 2,000 ft. Expect temperatures 7°F cooler than the data shown below, which comes from Salinas, CA at a lower elevation.
Planning Your Visit
September 20th in Pinnacles National Park (via Salinas, CA) typically brings pleasant fall weather, with average highs around 76°F and lows near 53°F. Over 55 years of records, the warmest September 20th was in 1983 (76°F average), while the coldest was 1986 (59°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 5% of September 20th dates historically. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in Pinnacles? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 77°F | 59°F | 0" | -- |
| 2024 | 67°F | 56°F | 0.05" | -- |
| 2023 | 69°F | 59°F | 0" | -- |
| 2022 | 79°F | 62°F | 0" | -- |
| 2021 | 89°F | 52°F | 0" | -- |
| 2020 | 85°F | 53°F | 0" | -- |
| 2019 | 81°F | 50°F | 0" | -- |
| 2018 | 84°F | 50°F | 0" | -- |
| 2017 | 75°F | 50°F | 0" | -- |
| 2016 | 75°F | 58°F | 0" | -- |
| 2015 | 94°F | 58°F | 0" | -- |
| 2014 | 71°F | 61°F | 0" | -- |
| 2013 | 76°F | 51°F | 0" | -- |
| 2012 | 73°F | 51°F | 0" | -- |
| 2011 | 76°F | 50°F | -- | -- |
| 2010 | 70°F | 55°F | 0" | 0" |
| 2009 | 71°F | 56°F | 0" | 0" |
| 2008 | 74°F | 60°F | 0.08" | 0" |
| 2007 | 74°F | 46°F | 0.15" | 0" |
| 2006 | 76°F | 45°F | 0" | 0" |
| 2005 | 69°F | 52°F | 0" | 0" |
| 2004 | 70°F | 48°F | 0" | 0" |
| 2003 | 87°F | 56°F | 0" | 0" |
| 2002 | 82°F | 51°F | 0" | 0" |
| 2001 | 65°F | 54°F | 0" | 0" |
| 2000 | 71°F | 58°F | 0" | -- |
| 1999 | 73°F | 48°F | 0" | 0" |
| 1998 | 68°F | 55°F | 0" | 0" |
| 1997 | 88°F | 48°F | 0" | 0" |
| 1996 | 76°F | 49°F | 0" | 0" |
| 1995 | 72°F | 56°F | 0" | 0" |
| 1994 | 70°F | 57°F | 0" | 0" |
| 1993 | 68°F | 54°F | 0" | 0" |
| 1992 | 70°F | 53°F | 0" | 0" |
| 1991 | 68°F | 55°F | 0" | 0" |
| 1990 | 81°F | 50°F | 0" | 0" |
| 1989 | 72°F | 54°F | 0" | 0" |
| 1988 | 70°F | 57°F | 0" | 0" |
| 1987 | 78°F | 52°F | 0" | 0" |
| 1986 | 69°F | 48°F | 0" | 0" |
| 1985 | 72°F | 54°F | 0" | 0" |
| 1984 | 74°F | 60°F | 0" | 0" |
| 1983 | 94°F | 59°F | 0" | 0" |
| 1982 | 84°F | 50°F | 0" | 0" |
| 1981 | 73°F | 53°F | 0" | 0" |
| 1980 | 70°F | 54°F | 0" | 0" |
| 1979 | 70°F | 52°F | 0" | 0" |
| 1978 | 83°F | 44°F | 0" | 0" |
| 1977 | 75°F | 54°F | 0" | 0" |
| 1976 | 71°F | 54°F | 0" | 0" |
| 1975 | 76°F | 55°F | 0" | 0" |
| 1974 | 72°F | 55°F | 0" | 0" |
| 1973 | 76°F | 59°F | 0" | 0" |
| 1972 | 86°F | 47°F | 0" | 0" |
| 1971 | 75°F | 52°F | 0" | 0" |