Weather on September 20
West Palm Beach, FL
55 Years of Data
About This Date
September 20th in West Palm Beach, FL typically brings warm fall weather, with average highs around 89°F and lows near 75°F. Over 55 years of records, the warmest September 20th was in 1975 (85°F average), while the coldest was 1985 (78°F) — a 7°F range across recorded history. Rain or other precipitation has occurred on about 51% of September 20th dates historically, with the wettest September 20th recording 7.92" of rain. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in West Palm Beach, FL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 78° | 84° | — | — |
| 2024 | 90° | 73° | 81° | 0.18" | — |
| 2023 | 90° | 72° | 81° | 0.46" | — |
| 2022 | 90° | 76° | 83° | — | — |
| 2021 | 90° | 75° | 82° | 1.47" | — |
| 2020 | 90° | 77° | 83° | 0.1" | — |
| 2019 | 86° | 78° | 82° | 0.18" | — |
| 2018 | 93° | 76° | 84° | — | — |
| 2017 | 89° | 77° | 83° | — | — |
| 2016 | 91° | 74° | 82° | 4.42" | — |
| 2015 | 88° | 75° | 81° | — | — |
| 2014 | 88° | 74° | 81° | 0.18" | — |
| 2013 | 87° | 73° | 80° | — | — |
| 2012 | 88° | 76° | 82° | — | — |
| 2011 | 90° | 80° | 85° | 0.05" | — |
| 2010 | 90° | 80° | 85° | — | — |
| 2009 | 89° | 76° | 82° | — | — |
| 2008 | 87° | 73° | 80° | — | — |
| 2007 | 89° | 76° | 82° | — | — |
| 2006 | 91° | 72° | 81° | 2.24" | — |
| 2005 | 85° | 76° | 80° | 0.53" | — |
| 2004 | 84° | 72° | 78° | 3.23" | — |
| 2003 | 89° | 80° | 85° | 0.71" | — |
| 2002 | 90° | 79° | 84° | 0.03" | — |
| 2001 | 88° | 73° | 80° | — | — |
| 2000 | 89° | 77° | 83° | — | — |
| 1999 | 86° | 76° | 81° | 1.83" | — |
| 1998 | 89° | 76° | 82° | 1.47" | — |
| 1997 | 88° | 73° | 80° | — | — |
| 1996 | 87° | 75° | 81° | — | — |
| 1995 | 89° | 75° | 82° | — | — |
| 1994 | 87° | 71° | 79° | 1.65" | — |
| 1993 | 89° | 75° | 82° | 0.03" | — |
| 1992 | 90° | 75° | 82° | — | — |
| 1991 | 90° | 76° | 83° | 1.02" | — |
| 1990 | 90° | 77° | 83° | — | — |
| 1989 | 90° | 74° | 82° | — | — |
| 1988 | 89° | 74° | 81° | — | — |
| 1987 | 92° | 75° | 83° | — | — |
| 1986 | 89° | 77° | 83° | 0.64" | — |
| 1985coldest | 82° | 74° | 78° | 0.48" | — |
| 1984 | 88° | 73° | 80° | 0.74" | — |
| 1983 | 90° | 77° | 83° | 0.53" | — |
| 1982 | 91° | 74° | 82° | — | — |
| 1981 | 84° | 74° | 79° | 7.92" | — |
| 1980 | 91° | 79° | 85° | 0.05" | — |
| 1979 | 87° | 77° | 82° | 0.03" | — |
| 1978 | 88° | 77° | 82° | — | — |
| 1977 | 90° | 73° | 81° | 0.28" | — |
| 1976 | 88° | 71° | 79° | — | — |
| 1975warmest | 89° | 80° | 85° | 0.03" | — |
| 1974 | 89° | 75° | 82° | — | — |
| 1973 | 91° | 76° | 83° | — | — |
| 1972 | 87° | 75° | 81° | 0.33" | — |
| 1971 | 88° | 72° | 80° | — | — |