Weather on December 21
Deltona, FL
55 Years of Data
Avg High
71°F
Avg Low
50°F
Warmest
1971
72°F avg
Coldest
2000
37°F avg
About This Date
December 21st in Deltona, FL typically brings pleasant winter weather, with average highs around 71°F and lows near 50°F. Over 55 years of records, the warmest December 21st was in 1971 (72°F average), while the coldest was 2000 (37°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 29% of December 21st dates historically, with the wettest December 21st recording 9.58" of rain. The last decade has been 9.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 9.8°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Deltona, FL? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 55° | 65° | — | — |
| 2024 | 75° | 48° | 62° | — | — |
| 2023 | 68° | 48° | 58° | — | — |
| 2022 | 64° | 57° | 61° | 1.02" | — |
| 2021 | 73° | 63° | 68° | 3.94" | — |
| 2020 | 77° | 55° | 66° | — | — |
| 2019 | 73° | 55° | 64° | — | — |
| 2018 | 69° | 61° | 65° | 9.58" | — |
| 2017 | 82° | 62° | 72° | — | — |
| 2016 | 70° | 57° | 63° | — | — |
| 2015 | 73° | 47° | 60° | — | — |
| 2014 | 76° | 50° | 63° | — | — |
| 2013 | 82° | 52° | 67° | — | — |
| 2012 | 81° | 50° | 65° | 0.91" | — |
| 2011 | 77° | 54° | 65° | — | — |
| 2010 | 62° | 38° | 50° | — | — |
| 2009 | 58° | 42° | 50° | — | — |
| 2008 | 76° | 56° | 66° | — | — |
| 2007 | 74° | 54° | 64° | — | — |
| 2006 | 76° | 59° | 67° | — | — |
| 2005 | 68° | 46° | 57° | — | — |
| 2004 | 51° | 37° | 44° | — | — |
| 2003 | 56° | 40° | 48° | — | — |
| 2002 | 71° | 43° | 57° | 1.65" | — |
| 2001 | 68° | 50° | 59° | — | — |
| 2000coldest | 46° | 28° | 37° | — | — |
| 1999 | 81° | 60° | 70° | — | — |
| 1998 | 80° | 60° | 70° | 0.03" | — |
| 1997 | 75° | 52° | 63° | — | — |
| 1996 | 45° | 38° | 41° | — | — |
| 1995 | 60° | 38° | 49° | — | — |
| 1994 | 73° | 56° | 64° | 1.7" | — |
| 1993 | 75° | 47° | 61° | 1.45" | — |
| 1992 | 77° | 55° | 66° | — | — |
| 1991 | 69° | 49° | 59° | — | — |
| 1990 | 85° | 60° | 72° | — | — |
| 1989 | 56° | 50° | 53° | 0.89" | — |
| 1988 | 70° | 50° | 60° | — | — |
| 1987 | 79° | 56° | 67° | — | — |
| 1986 | 80° | 55° | 68° | — | — |
| 1985 | 64° | 42° | 53° | — | — |
| 1984 | 78° | 52° | 65° | — | — |
| 1983 | 68° | 63° | 65° | 0.71" | — |
| 1982 | 64° | 37° | 51° | — | — |
| 1981 | 48° | 34° | 41° | — | — |
| 1980 | 69° | 54° | 61° | — | — |
| 1979 | 67° | 42° | 54° | — | — |
| 1978 | 80° | 58° | 69° | — | — |
| 1977 | 75° | 42° | 59° | 0.13" | — |
| 1976 | 77° | 38° | 57° | 0.08" | — |
| 1975 | 68° | 40° | 54° | 0.25" | — |
| 1974 | 81° | 59° | 70° | — | — |
| 1973 | 66° | 47° | 56° | 0.51" | — |
| 1972 | 78° | 58° | 68° | 0.36" | — |
| 1971warmest | 82° | 62° | 72° | 1.85" | — |
55 years of data from SANFORD