Weather on October 21
Saint Petersburg, FL
55 Years of Data
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 1.7" 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.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 72° | 79° | — | — |
| 2024 | 83° | 68° | 75° | — | — |
| 2023 | 83° | 72° | 77° | 0.03" | — |
| 2022 | 74° | 59° | 66° | — | — |
| 2021 | 88° | 75° | 81° | — | — |
| 2020 | 82° | 74° | 78° | 0.01" | — |
| 2019 | 86° | 77° | 82° | 1.7" | — |
| 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° | 0.59" | — |
| 2006 | 87° | 76° | 81° | — | — |
| 2005 | 86° | 80° | 83° | 0.01" | — |
| 2004 | 84° | 75° | 80° | — | — |
| 2003 | 84° | 70° | 77° | — | — |
| 2002 | 85° | 74° | 79° | — | — |
| 2001 | 84° | 72° | 78° | 1.61" | — |
| 2000 | 82° | 68° | 75° | — | — |
| 1999 | 78° | 70° | 74° | 0.07" | — |
| 1998 | 85° | 75° | 80° | 0.01" | — |
| 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° | 0.03" | — |
| 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° | — | — |
Saint Petersburg, FL Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Saint Petersburg, FL Monthly Precipitation
Average rainfall per month, in inches.
Saint Petersburg, FL Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Saint Petersburg, FL
Most pleasant months in Saint Petersburg, FL: January, February, March, April, November, December.
What to expect on October 21st
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
October 21st outlook →