Weather on May 21
Saint Petersburg, FL
55 Years of Data
Avg High
87°F
Avg Low
73°F
Warmest
1985
84°F avg
Coldest
1994
70°F avg
About This Date
May 21st in Saint Petersburg, FL typically brings warm spring weather, with average highs around 87°F and lows near 73°F. Over 55 years of records, the warmest May 21st was in 1985 (84°F average), while the coldest was 1994 (70°F) — a 14°F range across recorded history. Rain or other precipitation has occurred on about 15% of May 21st dates historically, with the wettest May 21st recording 5.97" of rain. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Saint Petersburg, FL? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 78° | 82° | — | — |
| 2024 | 89° | 75° | 82° | — | — |
| 2023 | 86° | 77° | 82° | 1.65" | — |
| 2022 | 86° | 75° | 81° | — | — |
| 2021 | 85° | 73° | 79° | — | — |
| 2020 | 89° | 76° | 82° | — | — |
| 2019 | 90° | 74° | 82° | — | — |
| 2018 | 79° | 70° | 74° | 5.97" | — |
| 2017 | 86° | 74° | 80° | — | — |
| 2016 | 85° | 74° | 79° | — | — |
| 2015 | 89° | 78° | 84° | — | — |
| 2014 | 88° | 72° | 80° | — | — |
| 2013 | 91° | 71° | 81° | 1.83" | — |
| 2012 | 87° | 73° | 80° | — | — |
| 2011 | 91° | 74° | 82° | — | — |
| 2010 | 93° | 74° | 83° | — | — |
| 2009 | 82° | 71° | 77° | 2.01" | — |
| 2008 | 85° | 70° | 77° | — | — |
| 2007 | 87° | 70° | 78° | — | — |
| 2006 | 88° | 72° | 80° | — | — |
| 2005 | 85° | 74° | 79° | — | — |
| 2004 | 87° | 73° | 80° | — | — |
| 2003 | 87° | 74° | 80° | — | — |
| 2002 | 81° | 67° | 74° | — | — |
| 2001 | 89° | 72° | 80° | — | — |
| 2000 | 84° | 74° | 79° | — | — |
| 1999 | 87° | 73° | 80° | — | — |
| 1998 | 89° | 74° | 81° | — | — |
| 1997 | 89° | 74° | 81° | — | — |
| 1996 | 75° | 73° | 74° | 1.98" | — |
| 1995 | 84° | 69° | 77° | — | — |
| 1994coldest | 77° | 62° | 70° | — | — |
| 1993 | 83° | 68° | 75° | — | — |
| 1992 | 85° | 70° | 77° | — | — |
| 1991 | 82° | 76° | 79° | — | — |
| 1990 | 82° | 77° | 80° | — | — |
| 1989 | 87° | 74° | 80° | — | — |
| 1988 | 90° | 71° | 80° | — | — |
| 1987 | 88° | 74° | 81° | — | — |
| 1986 | 85° | 69° | 77° | 2.36" | — |
| 1985warmest | 89° | 78° | 84° | — | — |
| 1984 | 89° | 68° | 79° | — | — |
| 1983 | 88° | 72° | 80° | — | — |
| 1982 | 88° | 71° | 79° | — | — |
| 1981 | 86° | 71° | 79° | — | — |
| 1980 | 90° | 77° | 83° | 0.51" | — |
| 1979 | 84° | 68° | 76° | — | — |
| 1978 | 90° | 72° | 81° | — | — |
| 1977 | 92° | 70° | 81° | — | — |
| 1976 | 86° | 71° | 79° | 0.33" | — |
| 1975 | 92° | 75° | 83° | — | — |
| 1974 | 90° | 72° | 81° | — | — |
| 1973 | 88° | 74° | 81° | — | — |
| 1972 | 82° | 70° | 76° | — | — |
| 1971 | 86° | 72° | 79° | — | — |
55 years of data from ST PETERSBURG ALBERT WHITTED A