Weather on December 21
Jacksonville, FL
55 Years of Data
Avg High
65°F
Avg Low
43°F
Warmest
1987
70°F avg
Coldest
2003
39°F avg
About This Date
December 21st in Jacksonville, FL typically brings mild winter weather, with average highs around 65°F and lows near 43°F. Over 55 years of records, the warmest December 21st was in 1987 (70°F average), while the coldest was 2003 (39°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 27% of December 21st dates historically, with the wettest December 21st recording 3.91" of rain. The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Jacksonville, FL? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 38° | 55° | — | — |
| 2024 | 56° | 36° | 46° | — | — |
| 2023 | 64° | 39° | 52° | — | — |
| 2022 | 56° | 49° | 52° | 0.25" | — |
| 2021 | 59° | 45° | 52° | 3.23" | — |
| 2020 | 63° | 45° | 54° | 0.13" | — |
| 2019 | 67° | 53° | 60° | — | — |
| 2018 | 64° | 49° | 56° | — | — |
| 2017 | 73° | 60° | 67° | — | — |
| 2016 | 59° | 40° | 49° | — | — |
| 2015 | 79° | 48° | 63° | — | — |
| 2014 | 58° | 56° | 57° | 0.41" | — |
| 2013 | 83° | 55° | 69° | — | — |
| 2012 | 60° | 37° | 49° | — | — |
| 2011 | 76° | 58° | 67° | — | — |
| 2010 | 67° | 29° | 48° | — | — |
| 2009 | 54° | 35° | 44° | — | — |
| 2008 | 78° | 53° | 66° | 0.03" | — |
| 2007 | 65° | 52° | 58° | 0.61" | — |
| 2006 | 73° | 63° | 68° | 0.25" | — |
| 2005 | 57° | 37° | 47° | — | — |
| 2004 | 65° | 28° | 46° | — | — |
| 2003coldest | 54° | 24° | 39° | — | — |
| 2002 | 61° | 36° | 48° | — | — |
| 2001 | 64° | 34° | 49° | — | — |
| 2000 | 58° | 23° | 40° | — | — |
| 1999 | 77° | 50° | 64° | 0.05" | — |
| 1998 | 78° | 55° | 67° | — | — |
| 1997 | 70° | 46° | 58° | — | — |
| 1996 | 54° | 26° | 40° | — | — |
| 1995 | 51° | 31° | 41° | — | — |
| 1994 | 60° | 54° | 57° | 3.91" | — |
| 1993 | 63° | 37° | 50° | 0.2" | — |
| 1992 | 73° | 53° | 63° | — | — |
| 1991 | 73° | 43° | 58° | — | — |
| 1990 | 76° | 60° | 68° | — | — |
| 1989 | 55° | 39° | 47° | — | — |
| 1988 | 80° | 48° | 64° | — | — |
| 1987warmest | 80° | 59° | 70° | — | — |
| 1986 | 63° | 48° | 55° | — | — |
| 1985 | 50° | 31° | 40° | — | — |
| 1984 | 79° | 49° | 64° | — | — |
| 1983 | 52° | 45° | 48° | 0.25" | — |
| 1982 | 64° | 33° | 49° | — | — |
| 1981 | 66° | 22° | 44° | — | — |
| 1980 | 53° | 38° | 45° | — | — |
| 1979 | 54° | 43° | 48° | — | — |
| 1978 | 78° | 51° | 65° | — | — |
| 1977 | 63° | 36° | 49° | 0.08" | — |
| 1976 | 57° | 29° | 43° | — | — |
| 1975 | 52° | 30° | 41° | — | — |
| 1974 | 62° | 47° | 54° | 0.1" | — |
| 1973 | 55° | 33° | 44° | — | — |
| 1972 | 75° | 57° | 66° | 1.78" | — |
| 1971 | 70° | 59° | 64° | 0.91" | — |
55 years of data from JACKSONVILLE