Port Saint Lucie weather by month
Measured at Ft Pierce/Treasure Coast Intl
Averages and records for each calendar month at Ft Pierce/Treasure Coast Intl, United States, from 1999 to 2026. The warmest month is August, averaging 32.5°C; the coolest is January at 22.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 22.9°C | 10.6°C | 30.6°C22 January 2017 | −3.2°C7 January 2010 | 27 / 27 |
| February | 24.6°C | 12.4°C | 32.2°C27 February 2007 | −5.0°C2 February 2026 | 27 / 27 |
| March | 26.2°C | 14.3°C | 33.9°C31 March 2020 | 0.6°C3 March 2009 | 27 / 27 |
| April | 27.9°C | 16.8°C | 35.6°C26 April 2015 | 5.0°C8 April 2009 | 27 / 27 |
| May | 30.0°C | 19.9°C | 36.7°C29 May 2000 | 9.4°C8 May 2016 | 27 / 27 |
| June | 31.6°C | 22.3°C | 37.2°C22 June 2009 | 17.2°C6 June 2011 | 27 / 27 |
| July | 32.4°C | 23.0°C | 36.7°C30 July 2010 | 20.0°C11 July 2002 | 27 / 28 |
| August | 32.5°C | 23.3°C | 37.2°C2 August 1999 | 18.9°C17 August 2000 | 28 / 28 |
| September | 31.2°C | 22.8°C | 35.0°C1 September 2007 | 17.2°C29 September 2006 | 26 / 28 |
| October | 29.1°C | 20.4°C | 34.4°C7 October 2009 | 7.2°C30 October 2012 | 27 / 27 |
| November | 26.3°C | 16.2°C | 32.8°C2 November 2018 | 1.1°C22 November 2006 | 27 / 27 |
| December | 24.3°C | 13.6°C | 31.1°C2 December 2018 | −4.3°C14 December 2010 | 27 / 27 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 26 to 28 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.