Weather on May 21
Palm Bay, FL
55 Years of Data
Avg High
86°F
Avg Low
69°F
Warmest
2025
85°F avg
Coldest
1994
68°F avg
About This Date
May 21st in Palm Bay, FL typically brings warm spring weather, with average highs around 86°F and lows near 69°F. Over 54 years of records, the warmest May 21st was in 2025 (85°F average), while the coldest was 1994 (68°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 28% of May 21st dates historically, with the wettest May 21st recording 2.9" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Palm Bay, FL? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 96° | 73° | 85° | — | — |
| 2024 | 86° | 67° | 76° | — | — |
| 2023 | 87° | 71° | 79° | — | — |
| 2022 | 87° | 72° | 79° | — | — |
| 2021 | 84° | 74° | 79° | — | — |
| 2020 | 94° | 72° | 83° | — | — |
| 2019 | 87° | 71° | 79° | — | — |
| 2018 | 79° | 72° | 75° | 0.1" | — |
| 2017 | 84° | 75° | 80° | — | — |
| 2016 | 87° | 70° | 78° | 1.19" | — |
| 2015 | 90° | 74° | 82° | — | — |
| 2014 | 78° | 73° | 76° | — | — |
| 2013 | 79° | 70° | 74° | 0.03" | — |
| 2012 | 80° | 66° | 73° | — | — |
| 2011 | 84° | 72° | 78° | — | — |
| 2010 | 85° | 70° | 77° | — | — |
| 2009 | 79° | 71° | 75° | 0.3" | — |
| 2008 | 95° | 73° | 84° | — | — |
| 2007 | 83° | 70° | 76° | — | — |
| 2006 | 87° | 65° | 76° | — | — |
| 2005 | 89° | 67° | 78° | 0.03" | — |
| 2004 | 83° | 67° | 75° | — | — |
| 2003 | 85° | 76° | 80° | — | — |
| 2002 | 80° | 69° | 75° | — | — |
| 2001 | 86° | 71° | 79° | — | — |
| 2000 | 88° | 60° | 74° | — | — |
| 1999 | 85° | 70° | 77° | — | — |
| 1998 | 96° | 69° | 83° | — | — |
| 1997 | 91° | 71° | 81° | — | — |
| 1996 | 78° | 71° | 75° | 1.12" | — |
| 1995 | 89° | 69° | 79° | — | — |
| 1994coldest | 78° | 58° | 68° | — | — |
| 1993 | 85° | 65° | 75° | — | — |
| 1992 | 82° | 69° | 76° | 1.37" | — |
| 1991 | 84° | 72° | 78° | 0.2" | — |
| 1990 | 88° | 71° | 79° | — | — |
| 1989 | 90° | 67° | 78° | 2.16" | — |
| 1988 | 85° | 69° | 77° | — | — |
| 1987 | 82° | 67° | 74° | — | — |
| 1986 | 88° | 63° | 75° | 0.18" | — |
| 1985 | 91° | 71° | 81° | 0.15" | — |
| 1984 | 85° | 66° | 75° | — | — |
| 1983 | 86° | 75° | 81° | — | — |
| 1982 | 78° | 68° | 73° | 1.68" | — |
| 1981 | 83° | 61° | 72° | — | — |
| 1980 | 89° | 67° | 78° | 0.15" | — |
| 1979 | 89° | 61° | 75° | — | — |
| 1978 | 88° | 69° | 78° | — | — |
| 1977 | 84° | 71° | 78° | — | — |
| 1976 | 86° | 72° | 79° | — | — |
| 1975 | 88° | 70° | 79° | — | — |
| 1974 | 84° | 74° | 79° | — | — |
| 1972 | 82° | 65° | 73° | 2.9" | — |
| 1971 | 89° | 68° | 79° | 0.08" | — |
54 years of data from MELBOURNE BEACH A1A