Weather on March 21
Jacksonville, FL
55 Years of Data
Avg High
75°F
Avg Low
50°F
Warmest
1982
76°F avg
Coldest
1971
49°F avg
About This Date
March 21st in Jacksonville, FL typically brings pleasant spring weather, with average highs around 75°F and lows near 50°F — a 25°F daily swing. Over 56 years of records, the warmest March 21st was in 1982 (76°F average), while the coldest was 1971 (49°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 32% of March 21st dates historically, with the wettest March 21st recording 1.55" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for March 21st in Jacksonville, FL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 86° | 45° | 65° | — | — |
| 2025 | 67° | 42° | 54° | — | — |
| 2024 | 77° | 41° | 59° | — | — |
| 2023 | 68° | 38° | 53° | 0.03" | — |
| 2022 | 74° | 44° | 59° | — | — |
| 2021 | 60° | 48° | 54° | 0.58" | — |
| 2020 | 89° | 61° | 75° | — | — |
| 2019 | 75° | 41° | 58° | — | — |
| 2018 | 65° | 49° | 57° | — | — |
| 2017 | 86° | 48° | 67° | — | — |
| 2016 | 64° | 41° | 53° | — | — |
| 2015 | 82° | 64° | 73° | 1.35" | — |
| 2014 | 75° | 51° | 63° | — | — |
| 2013 | 68° | 38° | 53° | — | — |
| 2012 | 81° | 58° | 69° | 0.05" | — |
| 2011 | 80° | 51° | 66° | — | — |
| 2010 | 70° | 52° | 61° | 0.41" | — |
| 2009 | 69° | 47° | 58° | — | — |
| 2008 | 71° | 43° | 57° | — | — |
| 2007 | 76° | 49° | 62° | — | — |
| 2006 | 86° | 60° | 73° | 0.91" | — |
| 2005 | 77° | 56° | 66° | 0.28" | — |
| 2004 | 85° | 57° | 71° | — | — |
| 2003 | 83° | 60° | 71° | 0.08" | — |
| 2002 | 78° | 60° | 69° | 1.55" | — |
| 2001 | 55° | 42° | 49° | — | — |
| 2000 | 78° | 48° | 63° | — | — |
| 1999 | 75° | 50° | 63° | 0.3" | — |
| 1998 | 54° | 44° | 49° | — | — |
| 1997 | 73° | 61° | 67° | 1.19" | — |
| 1996 | 61° | 37° | 49° | — | — |
| 1995 | 81° | 51° | 66° | — | — |
| 1994 | 82° | 61° | 71° | 0.15" | — |
| 1993 | 66° | 53° | 60° | 0.13" | — |
| 1992 | 65° | 38° | 51° | — | — |
| 1991 | 83° | 53° | 68° | — | — |
| 1990 | 66° | 36° | 51° | — | — |
| 1989 | 85° | 62° | 73° | 0.13" | — |
| 1988 | 77° | 42° | 60° | — | — |
| 1987 | 79° | 47° | 63° | — | — |
| 1986 | 62° | 47° | 54° | 0.36" | — |
| 1985 | 70° | 52° | 61° | 0.18" | — |
| 1984 | 70° | 45° | 57° | — | — |
| 1983 | 66° | 45° | 55° | — | — |
| 1982warmest | 87° | 64° | 76° | — | — |
| 1981 | 73° | 34° | 53° | — | — |
| 1980 | 76° | 50° | 63° | 0.1" | — |
| 1979 | 83° | 54° | 68° | — | — |
| 1978 | 79° | 54° | 66° | — | — |
| 1977 | 87° | 61° | 74° | — | — |
| 1976 | 82° | 63° | 72° | — | — |
| 1975 | 78° | 46° | 62° | — | — |
| 1974 | 81° | 65° | 73° | 0.15" | — |
| 1973 | 76° | 51° | 63° | — | — |
| 1972 | 80° | 54° | 67° | — | — |
| 1971coldest | 68° | 30° | 49° | — | — |
56 years of data from JACKSONVILLE