Weather on March 18
Port Saint Lucie, FL
55 Years of Data
Avg High
78°F
Avg Low
62°F
Warmest
2024
79°F avg
Coldest
2010
56°F avg
About This Date
March 18th in Port Saint Lucie, FL typically brings pleasant spring weather, with average highs around 78°F and lows near 62°F. Over 56 years of records, the warmest March 18th was in 2024 (79°F average), while the coldest was 2010 (56°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 30% of March 18th dates historically, with the wettest March 18th recording 6.1" of rain. The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for March 18th in Port Saint Lucie, FL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 63° | 56° | 59° | 0.05" | — |
| 2025 | 75° | 57° | 66° | — | — |
| 2024warmest | 89° | 69° | 79° | — | — |
| 2023 | 77° | 63° | 70° | — | — |
| 2022 | 78° | 71° | 75° | — | — |
| 2021 | 81° | 67° | 74° | — | — |
| 2020 | 79° | 73° | 76° | — | — |
| 2019 | 73° | 65° | 69° | 0.03" | — |
| 2018 | 78° | — | — | — | — |
| 2017 | 70° | 55° | 62° | — | — |
| 2016 | 85° | 66° | 75° | — | — |
| 2015 | 84° | 70° | 77° | — | — |
| 2014 | — | 66° | — | 0.76" | — |
| 2013 | 72° | 64° | 68° | — | — |
| 2012 | 80° | 70° | 75° | — | — |
| 2011 | 76° | 67° | 71° | — | — |
| 2010coldest | 66° | 47° | 56° | 0.13" | — |
| 2009 | 76° | 66° | 71° | 0.94" | — |
| 2008 | 77° | 70° | 73° | — | — |
| 2007 | 69° | 54° | 61° | — | — |
| 2006 | 80° | 63° | 71° | — | — |
| 2005 | 65° | 62° | 63° | 6.1" | — |
| 2004 | 74° | 68° | 71° | — | — |
| 2003 | 82° | 66° | 74° | 0.25" | — |
| 2002 | 82° | 63° | 72° | 0.1" | — |
| 2001 | 81° | 66° | 73° | 0.36" | — |
| 2000 | 86° | 66° | 76° | — | — |
| 1999 | 75° | 55° | 65° | — | — |
| 1998 | 77° | 67° | 72° | 1.09" | — |
| 1997 | 80° | 66° | 73° | — | — |
| 1996 | 87° | 70° | 78° | — | — |
| 1995 | 71° | 62° | 67° | 1.27" | — |
| 1994 | 85° | 49° | 67° | — | — |
| 1993 | 74° | 65° | 69° | 2.95" | — |
| 1992 | 78° | 54° | 66° | — | — |
| 1991 | 75° | 52° | 63° | 0.61" | — |
| 1990 | 81° | 61° | 71° | 2.03" | — |
| 1989 | 78° | 64° | 71° | 0.13" | — |
| 1988 | 73° | 59° | 66° | — | — |
| 1987 | 75° | 61° | 68° | — | — |
| 1986 | 79° | 66° | 72° | 0.28" | — |
| 1985 | 67° | 50° | 58° | — | — |
| 1984 | 80° | 63° | 71° | — | — |
| 1983 | 76° | 61° | 68° | — | — |
| 1982 | 85° | 67° | 76° | — | — |
| 1981 | 82° | 52° | 67° | — | — |
| 1980 | 88° | 69° | 78° | — | — |
| 1979 | 75° | 65° | 70° | — | — |
| 1978 | — | 57° | — | — | — |
| 1977 | 88° | 65° | 76° | — | — |
| 1976 | 75° | 46° | 61° | — | — |
| 1975 | 85° | 66° | 75° | 1.14" | — |
| 1974 | 74° | 46° | 60° | — | — |
| 1973 | 74° | 67° | 70° | — | — |
| 1972 | 82° | 57° | 70° | — | — |
| 1971 | 72° | 51° | 61° | — | — |
56 years of data from NETTLES IS