Weather on May 21
Saint Petersburg, FL
55 Years of Data
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 56 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 14% of May 21st dates historically, with the wettest May 21st recording 5.97" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°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 |
|---|---|---|---|---|---|
| 2026 | 93° | 75° | 84° | — | — |
| 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 | 89° | 71° | 80° | — | — |
| 2013 | 88° | 74° | 81° | 1.35" | — |
| 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° | 75° | 81° | — | — |
| 2002 | 83° | 63° | 73° | — | — |
| 2001 | 89° | 72° | 80° | — | — |
| 2000 | 84° | 74° | 79° | — | — |
| 1999 | 89° | 73° | 81° | — | — |
| 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° | — | — |
Saint Petersburg, FL Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Saint Petersburg, FL Monthly Precipitation
Average rainfall per month, in inches.
Saint Petersburg, 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 Saint Petersburg, FL
Saint Petersburg, FL has no months that meet our "pleasant" threshold — every season has tradeoffs.