Weather on June 21
Port Saint Lucie, FL
55 Years of Data
Avg High
89°F
Avg Low
74°F
Warmest
2009
87°F avg
Coldest
1974
78°F avg
About This Date
June 21st in Port Saint Lucie, FL typically brings warm summer weather, with average highs around 89°F and lows near 74°F. Over 55 years of records, the warmest June 21st was in 2009 (87°F average), while the coldest was 1974 (78°F) — a 9°F range across recorded history. Rain or other precipitation has occurred on about 47% of June 21st dates historically, with the wettest June 21st recording 2.9" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
Planning for June 21st in Port Saint Lucie, FL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | — | — | — | — |
| 2024 | 87° | 76° | 81° | 0.13" | — |
| 2023 | 95° | 71° | 83° | 2.9" | — |
| 2022 | 89° | 77° | 83° | — | — |
| 2021 | 90° | 73° | 81° | — | — |
| 2020 | 88° | 73° | 80° | — | — |
| 2019 | 97° | 78° | 87° | — | — |
| 2018 | 86° | 78° | 82° | — | — |
| 2017 | 88° | 80° | 84° | 0.13" | — |
| 2016 | 85° | 76° | 80° | 0.03" | — |
| 2015 | 93° | 77° | 85° | — | — |
| 2014 | 87° | 75° | 81° | 2.67" | — |
| 2013 | 86° | 74° | 80° | 1.91" | — |
| 2012 | 81° | 75° | 78° | 1.27" | — |
| 2011 | 87° | 76° | 81° | — | — |
| 2010 | 92° | 76° | 84° | — | — |
| 2009warmest | 97° | 78° | 87° | — | — |
| 2008 | 88° | 72° | 80° | 0.05" | — |
| 2007 | 96° | 75° | 86° | — | — |
| 2006 | 92° | 78° | 85° | — | — |
| 2005 | 84° | 72° | 78° | 2.34" | — |
| 2004 | 92° | 76° | 84° | — | — |
| 2003 | 85° | 74° | 79° | 1.12" | — |
| 2002 | 87° | 70° | 78° | 2.54" | — |
| 2001 | 89° | 70° | 79° | — | — |
| 2000 | 88° | 72° | 80° | — | — |
| 1999 | 82° | 73° | 78° | — | — |
| 1998 | 95° | 73° | 84° | 0.64" | — |
| 1997 | 90° | 66° | 78° | — | — |
| 1996 | 91° | 72° | 81° | 0.38" | — |
| 1995 | 85° | 72° | 78° | 1.8" | — |
| 1994 | 92° | 75° | 83° | 0.28" | — |
| 1993 | 88° | 74° | 81° | — | — |
| 1992 | 94° | 75° | 84° | 2.79" | — |
| 1991 | 88° | 75° | 81° | — | — |
| 1990 | 93° | 77° | 85° | — | — |
| 1989 | 85° | 72° | 78° | 1.14" | — |
| 1988 | 83° | 74° | 78° | 2.29" | — |
| 1987 | 87° | 78° | 83° | — | — |
| 1986 | 86° | 69° | 78° | 0.69" | — |
| 1985 | 86° | 74° | 80° | — | — |
| 1984 | 90° | 72° | 81° | — | — |
| 1983 | 90° | 75° | 82° | 0.15" | — |
| 1982 | 89° | 79° | 84° | 0.03" | — |
| 1981 | 91° | 66° | 79° | — | — |
| 1980 | 93° | 74° | 83° | 0.28" | — |
| 1979 | 87° | 77° | 82° | — | — |
| 1978 | 85° | 73° | 79° | 0.97" | — |
| 1977 | 90° | 70° | 80° | — | — |
| 1976 | 86° | 72° | 79° | — | — |
| 1975 | 87° | 71° | 79° | 0.2" | — |
| 1974coldest | 86° | 70° | 78° | 0.15" | — |
| 1973 | 86° | 73° | 80° | 2.79" | — |
| 1972 | 94° | 74° | 84° | — | — |
| 1971 | 93° | — | — | — | — |
55 years of data from NETTLES IS