Weather on December 21
Boca Raton, FL
55 Years of Data
About This Date
December 21st in Boca Raton, FL typically brings pleasant winter weather, with average highs around 77°F and lows near 61°F. Over 54 years of records, the warmest December 21st was in 2013 (80°F average), while the coldest was 1996 (52°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 30% of December 21st dates historically, with the wettest December 21st recording 4.93" of rain. The last decade has been 8.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.9°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Boca Raton, FL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 68° | 75° | 0.86" | — |
| 2024 | 71° | 52° | 61° | — | — |
| 2023 | 77° | 68° | 73° | — | — |
| 2022 | 80° | 71° | 76° | 0.08" | — |
| 2021 | 81° | 70° | 75° | 0.05" | — |
| 2020 | 76° | 60° | 68° | — | — |
| 2019 | 78° | 70° | 74° | 2.31" | — |
| 2018 | 74° | 59° | 66° | — | — |
| 2017 | 83° | 66° | 74° | — | — |
| 2016 | 75° | 68° | 72° | 0.05" | — |
| 2015 | 82° | 73° | 78° | 0.79" | — |
| 2014 | 81° | 63° | 72° | — | — |
| 2013warmest | 83° | 77° | 80° | — | — |
| 2012 | 72° | 51° | 61° | — | — |
| 2011 | 80° | 73° | 77° | — | — |
| 2010 | 72° | 51° | 61° | — | — |
| 2009 | 64° | 49° | 56° | — | — |
| 2008 | 79° | 62° | 70° | — | — |
| 2007 | 83° | 62° | 72° | — | — |
| 2006 | 80° | 74° | 77° | — | — |
| 2005 | 68° | 54° | 61° | — | — |
| 2004 | 70° | 48° | 59° | — | — |
| 2003 | 66° | 46° | 56° | — | — |
| 2002 | 72° | 51° | 61° | — | — |
| 2001 | 76° | 56° | 66° | — | — |
| 2000 | 69° | 45° | 57° | — | — |
| 1999 | 80° | 69° | 75° | 0.3" | — |
| 1998 | 81° | 71° | 76° | 0.15" | — |
| 1997 | 73° | 51° | 62° | — | — |
| 1996coldest | 58° | 46° | 52° | — | — |
| 1995 | 69° | 48° | 59° | — | — |
| 1994 | 75° | 63° | 69° | 4.93" | — |
| 1993 | 80° | 69° | 75° | 0.03" | — |
| 1992 | 83° | 65° | 74° | — | — |
| 1991 | 73° | 65° | 69° | — | — |
| 1990 | 84° | 74° | 79° | — | — |
| 1989 | 81° | 65° | 73° | 0.05" | — |
| 1988 | 80° | 70° | 75° | 1.07" | — |
| 1987 | 81° | 73° | 77° | — | — |
| 1986 | 74° | 60° | 67° | — | — |
| 1985 | 65° | 54° | 59° | 2.29" | — |
| 1984 | 83° | 62° | 72° | — | — |
| 1983 | 82° | 68° | 75° | — | — |
| 1982 | 73° | 42° | 58° | — | — |
| 1981 | 72° | 45° | 58° | — | — |
| 1980 | 76° | 57° | 66° | 0.13" | — |
| 1979 | 78° | 58° | 68° | — | — |
| 1978 | 86° | 60° | 73° | — | — |
| 1976 | 81° | 63° | 72° | 0.71" | — |
| 1975 | — | 55° | — | — | — |
| 1974 | 79° | 67° | 73° | — | — |
| 1973 | 75° | 58° | 66° | — | — |
| 1972 | 86° | 72° | 79° | — | — |
| 1971 | 85° | 71° | 78° | 0.03" | — |
Boca Raton, FL Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Boca Raton, FL Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Boca Raton, 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 Boca Raton, FL
Boca Raton, FL has no months that meet our "pleasant" threshold — every season has tradeoffs.