Historical Weather in Port St. Lucie, FL
See 55+ years of weather history for any date in Port St. Lucie going back to 1970.
Part of Florida weather history · Florida temperature records
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Today in Port St. Lucie Weather HistorySee records, averages, and 55+ years of data for today's date
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Monthly Climate Averages
Historical temperature and precipitation averages for Port St. Lucie, FL, based on 55+ years of weather data.
Warmest MonthAugustAvg High: 90°F / Low: 75°F
Coldest MonthJanuaryAvg High: 74°F / Low: 54°F
Jan
74°/ 54°
💧 8.2"
Feb
76°/ 56°
💧 8.7"
Mar
78°/ 60°
💧 10.9"
❄️ 0.1"
Apr
82°/ 65°
💧 10.1"
May
85°/ 69°
💧 12.6"
Jun
89°/ 73°
💧 11.8"
Jul
90°/ 74°
💧 10.0"
Aug
90°/ 75°
💧 11.4"
Sep
89°/ 74°
💧 12.2"
Oct
85°/ 70°
💧 11.5"
Nov
80°/ 63°
💧 9.1"
Dec
76°/ 58°
💧 7.7"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Port St. Lucie, FL Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Avg high Avg low
Port St. Lucie, FL Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rain (in) Snow (in)
Port St. Lucie, 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.
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Best Time to Visit Port St. Lucie, FL
Port St. Lucie, FL has no months that meet our "pleasant" threshold — every season has tradeoffs.
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Feb
Mar
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Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal
Port St. Lucie Temperature Records
- Record High: The hottest temperature ever recorded in Port St. Lucie, FL is 102°F, set on September 6, 1992.
- Record Low: The coldest temperature ever recorded in Port St. Lucie, FL is 19°F, set on January 22, 1985.
- Data Coverage: Based on 16 years of data from NOAA weather station: NETTLES IS.
All-Time Record High
102°F
September 6, 1992
All-Time Record Low
19°F
January 22, 1985
Monthly Temperature Records in Port St. Lucie
| Month | Record High | Record Low |
|---|---|---|
| January | 89°F(1987) | 19°F(1985) |
| February | 91°F(2003) | 25°F(1989) |
| March | 93°F(1977) | 26°F(1980) |
| April | 99°F(2009) | 33°F(1987) |
| May | 98°F(1995) | 45°F(1992) |
| June | 100°F(1998) | 55°F(1980) |
| July | 101°F(1989) | 59°F(1971) |
| August | 100°F(2023) | 59°F(2008) |
| September | 102°F(1992) | 58°F(2008) |
| October | 98°F(1998) | 42°F(1989) |
| November | 100°F(1998) | 30°F(2008) |
| December | 99°F(2002) | 19°F(1989) |
Port St. Lucie Snow RecordsSee the top 10 snowiest days ever recorded
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Holiday Weather in Port St. Lucie
Weather Analysis & Trends
RecordsHottest Temperatures Ever Recorded in Every US StateAll 50 state record highs ranked, including Florida.Severe WeatherTornado Season 2026: Forecasts & What to ExpectAn EF5 already, and the peak still ahead.Climate ForecastEl Niño 2026: What Every US Region Should Expect85% likely by late 2026. Region-by-region impact analysis.