Port St. Lucie is located in the broad transition zone between a humid subtropical climate , which dominates Central Florida, and within the northern extent of the tropical climate typical of South Florida. Summers are usually hot, with high temperatures averaging in the low 90s. Winters are usually mild to warm, with average high temperatures in the 70s. The average yearly precipitation is around 53.5 in.
Port St. Lucie was hit directly by Hurricane Frances (as a Category 2 hurricane) on September 4, 2004, and by Hurricane Jeanne (as a Category 3 hurricane) on September 26, 2004.
On October 24, 2005 Port St. Lucie was hit directly by Hurricane Wilma (as a Category 3 hurricane).
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