Weather on April 21
Port Saint Lucie, FL
55 Years of Data
Avg High
82°F
Avg Low
67°F
Warmest
1991
85°F avg
Coldest
1997
66°F avg
About This Date
April 21st in Port Saint Lucie, FL typically brings warm spring weather, with average highs around 82°F and lows near 67°F. Over 55 years of records, the warmest April 21st was in 1991 (85°F average), while the coldest was 1997 (66°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 35% of April 21st dates historically, with the wettest April 21st recording 5.08" of rain. The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
Planning for April 21st in Port Saint Lucie, FL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 73° | 77° | — | — |
| 2024 | 82° | — | — | — | — |
| 2023 | 80° | 73° | 77° | — | — |
| 2022 | 78° | 72° | 75° | — | — |
| 2021 | 84° | 71° | 78° | 0.28" | — |
| 2020 | 89° | 70° | 79° | 1.83" | — |
| 2019 | 81° | 62° | 71° | — | — |
| 2018 | 84° | 65° | 74° | — | — |
| 2017 | 78° | 73° | 76° | — | — |
| 2016 | 80° | 73° | 77° | — | — |
| 2015 | 87° | 76° | 81° | 3.23" | — |
| 2014 | 75° | 62° | 69° | — | — |
| 2013 | 85° | 70° | 77° | 0.25" | — |
| 2012 | 81° | 68° | 74° | 2.16" | — |
| 2011 | 80° | 73° | 77° | — | — |
| 2010 | 78° | 64° | 71° | 0.05" | — |
| 2009 | 88° | 67° | 77° | 0.18" | — |
| 2008 | 85° | 62° | 73° | — | — |
| 2007 | 83° | 68° | 75° | 0.28" | — |
| 2006 | 88° | 72° | 80° | — | — |
| 2005 | 71° | 67° | 69° | — | — |
| 2004 | 78° | 67° | 72° | — | — |
| 2003 | 80° | 71° | 76° | 0.08" | — |
| 2002 | 85° | 64° | 74° | 5.08" | — |
| 2001 | 78° | 67° | 72° | — | — |
| 2000 | 85° | 57° | 71° | 0.41" | — |
| 1999 | 78° | 59° | 69° | — | — |
| 1998 | 87° | 65° | 76° | 3.86" | — |
| 1997coldest | 81° | 52° | 66° | — | — |
| 1996 | 82° | 72° | 77° | — | — |
| 1995 | 86° | 70° | 78° | — | — |
| 1994 | 83° | 70° | 76° | 0.69" | — |
| 1993 | 84° | 61° | 72° | — | — |
| 1992 | 82° | 74° | 78° | — | — |
| 1991warmest | 87° | 82° | 85° | — | — |
| 1990 | 78° | 68° | 73° | — | — |
| 1989 | 80° | 62° | 71° | 0.89" | — |
| 1988 | 84° | 63° | 73° | — | — |
| 1987 | 84° | 58° | 71° | — | — |
| 1986 | 85° | 55° | 70° | 0.05" | — |
| 1985 | 80° | 67° | 73° | 0.2" | — |
| 1984 | 85° | 70° | 77° | — | — |
| 1983 | 79° | 59° | 69° | — | — |
| 1982 | 85° | 67° | 76° | — | — |
| 1981 | 85° | 65° | 75° | — | — |
| 1980 | 81° | 57° | 69° | — | — |
| 1979 | 76° | 65° | 70° | 2.59" | — |
| 1978 | 81° | 58° | 69° | — | — |
| 1977 | 81° | 70° | 75° | — | — |
| 1976 | 81° | 62° | 71° | 0.05" | — |
| 1975 | 85° | 75° | 80° | — | — |
| 1974 | 79° | 71° | 75° | — | — |
| 1973 | 79° | 68° | 73° | — | — |
| 1972 | 89° | 70° | 79° | 0.03" | — |
| 1971 | 90° | 53° | 71° | — | — |
55 years of data from NETTLES IS