Weather on August 31
Port Saint Lucie, FL
55 Years of Data
Avg High
90°F
Avg Low
76°F
Warmest
2020
87°F avg
Coldest
1972
77°F avg
About This Date
August 31st in Port Saint Lucie, FL typically brings hot summer weather, with average highs around 90°F and lows near 76°F. Over 55 years of records, the warmest August 31st was in 2020 (87°F average), while the coldest was 1972 (77°F) — a 10°F range across recorded history. Rain or other precipitation has occurred on about 60% of August 31st dates historically, with the wettest August 31st recording 4.39" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for August 31st 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 | 95° | 75° | 85° | 0.25" | — |
| 2024 | 86° | 77° | 82° | 2.51" | — |
| 2023 | 93° | 79° | 86° | 0.61" | — |
| 2022 | 90° | 78° | 84° | — | — |
| 2021 | 89° | 78° | 84° | — | — |
| 2020warmest | 96° | 78° | 87° | 0.08" | — |
| 2019 | 89° | 74° | 81° | 1.02" | — |
| 2018 | 87° | 81° | 84° | 0.08" | — |
| 2017 | 89° | 80° | 85° | 0.08" | — |
| 2016 | 86° | 74° | 80° | 4.39" | — |
| 2015 | 87° | 75° | 81° | 2.06" | — |
| 2014 | 88° | 84° | 86° | — | — |
| 2013 | 87° | 74° | 80° | 3.81" | — |
| 2012 | 86° | 79° | 82° | — | — |
| 2011 | 86° | 79° | 82° | — | — |
| 2010 | 89° | 77° | 83° | 0.1" | — |
| 2009 | 89° | 74° | 81° | 0.48" | — |
| 2008 | 87° | 76° | 81° | 0.97" | — |
| 2007 | 89° | 78° | 84° | — | — |
| 2006 | 85° | 74° | 79° | 1.17" | — |
| 2005 | 96° | 76° | 86° | 0.28" | — |
| 2004 | 90° | 74° | 82° | — | — |
| 2003 | 89° | 79° | 84° | — | — |
| 2002 | 89° | 75° | 82° | 2.34" | — |
| 2001 | 90° | 76° | 83° | — | — |
| 2000 | 89° | 74° | 81° | — | — |
| 1999 | 88° | 76° | 82° | 0.91" | — |
| 1998 | 90° | 77° | 83° | — | — |
| 1997 | 91° | 71° | 81° | 0.13" | — |
| 1996 | 95° | 74° | 84° | — | — |
| 1995 | 92° | 78° | 85° | — | — |
| 1994 | 92° | 72° | 82° | 0.41" | — |
| 1993 | 89° | 74° | 81° | 1.96" | — |
| 1992 | 90° | 76° | 83° | — | — |
| 1991 | 91° | 73° | 82° | 0.03" | — |
| 1990 | 93° | 75° | 84° | — | — |
| 1989 | 91° | 76° | 83° | — | — |
| 1988 | 87° | 75° | 81° | 0.91" | — |
| 1987 | 90° | 81° | 85° | — | — |
| 1986 | 99° | 72° | 85° | 1.55" | — |
| 1985 | 89° | 80° | 85° | 0.15" | — |
| 1984 | 93° | 70° | 81° | 3.28" | — |
| 1983 | 92° | 78° | 85° | — | — |
| 1982 | 85° | 76° | 80° | 0.97" | — |
| 1981 | 91° | 75° | 83° | 0.05" | — |
| 1980 | 89° | 75° | 82° | — | — |
| 1979 | 87° | 74° | 80° | 0.18" | — |
| 1978 | 90° | 73° | 81° | — | — |
| 1977 | 88° | 78° | 83° | 0.08" | — |
| 1976 | 90° | 76° | 83° | — | — |
| 1975 | 92° | 69° | 80° | — | — |
| 1974 | 88° | 72° | 80° | 0.08" | — |
| 1973 | 84° | 74° | 79° | 1.19" | — |
| 1972coldest | 90° | 64° | 77° | 0.18" | — |
| 1971 | 88° | 76° | 82° | 0.64" | — |
55 years of data from NETTLES IS