Weather on October 21
Jacksonville, FL
55 Years of Data
Avg High
80°F
Avg Low
57°F
Warmest
1971
79°F avg
Coldest
1989
51°F avg
About This Date
October 21st in Jacksonville, FL typically brings warm fall weather, with average highs around 80°F and lows near 57°F. Over 55 years of records, the warmest October 21st was in 1971 (79°F average), while the coldest was 1989 (51°F) — a 28°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 6.02" 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 Jacksonville, FL? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 54° | 68° | — | — |
| 2024 | 79° | 55° | 67° | — | — |
| 2023 | 79° | 56° | 67° | — | — |
| 2022 | 73° | 42° | 58° | — | — |
| 2021 | 83° | 58° | 70° | — | — |
| 2020 | 83° | 71° | 77° | 1.27" | — |
| 2019 | 84° | 59° | 72° | — | — |
| 2018 | 73° | 55° | 64° | — | — |
| 2017 | 86° | 68° | 77° | — | — |
| 2016 | 85° | 56° | 70° | — | — |
| 2015 | 80° | 65° | 72° | — | — |
| 2014 | 83° | 59° | 71° | — | — |
| 2013 | 80° | 66° | 73° | — | — |
| 2012 | 79° | 51° | 65° | — | — |
| 2011 | 70° | 40° | 55° | — | — |
| 2010 | 82° | 53° | 68° | — | — |
| 2009 | 80° | 56° | 68° | — | — |
| 2008 | 78° | 53° | 66° | — | — |
| 2007 | 79° | 62° | 70° | — | — |
| 2006 | 85° | 60° | 72° | — | — |
| 2005 | 89° | 68° | 79° | 1.3" | — |
| 2004 | 80° | 66° | 73° | — | — |
| 2003 | 83° | 57° | 70° | — | — |
| 2002 | 85° | 59° | 72° | 0.03" | — |
| 2001 | 82° | 62° | 72° | — | — |
| 2000 | 80° | 60° | 70° | — | — |
| 1999 | 68° | 60° | 64° | 0.43" | — |
| 1998 | 83° | 63° | 73° | — | — |
| 1997 | 78° | 48° | 63° | — | — |
| 1996 | 78° | 45° | 61° | — | — |
| 1995 | 70° | 49° | 59° | — | — |
| 1994 | 84° | 64° | 74° | — | — |
| 1993 | 89° | 63° | 76° | — | — |
| 1992 | 79° | 55° | 67° | — | — |
| 1991 | 80° | 60° | 70° | — | — |
| 1990 | 81° | 70° | 75° | 3.48" | — |
| 1989coldest | 67° | 36° | 51° | — | — |
| 1988 | 83° | 63° | 73° | — | — |
| 1987 | 80° | 47° | 63° | — | — |
| 1986 | 74° | 44° | 59° | — | — |
| 1985 | 86° | 67° | 76° | 2.82" | — |
| 1984 | 86° | 66° | 76° | — | — |
| 1983 | 74° | 68° | 71° | — | — |
| 1982 | 83° | 58° | 70° | — | — |
| 1981 | 81° | 55° | 68° | — | — |
| 1980 | 80° | 60° | 70° | — | — |
| 1979 | 83° | 62° | 72° | — | — |
| 1978 | 80° | 48° | 64° | — | — |
| 1977 | 76° | 52° | 64° | — | — |
| 1976 | 65° | 44° | 54° | — | — |
| 1975 | 78° | 47° | 62° | — | — |
| 1974 | 69° | 45° | 57° | — | — |
| 1973 | 78° | 66° | 72° | 6.02" | — |
| 1972 | 72° | 49° | 60° | 0.15" | — |
| 1971warmest | 86° | 71° | 79° | 0.23" | — |
55 years of data from JACKSONVILLE