Weather on October 21
Saint Petersburg, FL
55 Years of Data
Avg High
83°F
Avg Low
70°F
Warmest
1985
83°F avg
Coldest
1989
59°F avg
About This Date
October 21st in Saint Petersburg, FL typically brings warm fall weather, with average highs around 83°F and lows near 70°F. Over 55 years of records, the warmest October 21st was in 1985 (83°F average), while the coldest was 1989 (59°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 16% of October 21st dates historically, with the wettest October 21st recording 4.32" of rain. 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 October 21st in Saint Petersburg, FL? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 72° | 79° | — | — |
| 2024 | 83° | 68° | 75° | — | — |
| 2023 | 83° | 72° | 77° | 0.08" | — |
| 2022 | 74° | 59° | 66° | — | — |
| 2021 | 88° | 75° | 81° | — | — |
| 2020 | 82° | 74° | 78° | 0.03" | — |
| 2019 | 86° | 77° | 82° | 4.32" | — |
| 2018 | 84° | 72° | 78° | — | — |
| 2017 | 85° | 74° | 79° | — | — |
| 2016 | 82° | 73° | 78° | — | — |
| 2015 | 82° | 72° | 77° | — | — |
| 2014 | 83° | 72° | 77° | — | — |
| 2013 | 89° | 74° | 81° | — | — |
| 2012 | 80° | 65° | 72° | — | — |
| 2011 | 71° | 62° | 67° | — | — |
| 2010 | 85° | 69° | 77° | — | — |
| 2009 | 82° | 68° | 75° | — | — |
| 2008 | 82° | 68° | 75° | — | — |
| 2007 | 87° | 75° | 81° | 1.5" | — |
| 2006 | 87° | 76° | 81° | — | — |
| 2005 | 86° | 80° | 83° | 0.03" | — |
| 2004 | 84° | 75° | 80° | — | — |
| 2003 | 84° | 70° | 77° | — | — |
| 2002 | 85° | 74° | 79° | — | — |
| 2001 | 84° | 72° | 78° | 4.09" | — |
| 2000 | 82° | 68° | 75° | — | — |
| 1999 | 78° | 70° | 74° | 0.18" | — |
| 1998 | 85° | 75° | 80° | 0.03" | — |
| 1997 | 78° | 64° | 71° | — | — |
| 1996 | 79° | 60° | 69° | — | — |
| 1995 | 75° | 63° | 69° | — | — |
| 1994 | 83° | 71° | 77° | — | — |
| 1993 | 88° | 75° | 81° | — | — |
| 1992 | 79° | 67° | 73° | — | — |
| 1991 | 83° | 72° | 77° | — | — |
| 1990 | 85° | 74° | 79° | 0.08" | — |
| 1989coldest | 66° | 51° | 59° | — | — |
| 1988 | 83° | 70° | 76° | — | — |
| 1987 | 82° | 71° | 77° | — | — |
| 1986 | 82° | 63° | 72° | — | — |
| 1985warmest | 91° | 76° | 83° | — | — |
| 1984 | 87° | 72° | 79° | — | — |
| 1983 | 87° | 73° | 80° | — | — |
| 1982 | 84° | 70° | 77° | — | — |
| 1981 | 83° | 68° | 75° | — | — |
| 1980 | 85° | 70° | 77° | — | — |
| 1979 | 87° | 74° | 80° | — | — |
| 1978 | 84° | 67° | 75° | — | — |
| 1977 | 80° | 67° | 73° | — | — |
| 1976 | 80° | 59° | 70° | — | — |
| 1975 | 80° | 64° | 72° | — | — |
| 1974 | 77° | 66° | 72° | — | — |
| 1973 | 87° | 70° | 78° | — | — |
| 1972 | 86° | 70° | 78° | — | — |
| 1971 | 85° | 72° | 78° | — | — |
55 years of data from ST PETERSBURG