 The low pressure measured from an extratropical cyclone was 28 @.@ 84 inches / 976 @.@ 7 hPa during the Storm of the Century ( 1993 ) . From a tropical cyclone , the lowest pressure measured was 26 @.@ 35 inches / 892 hPa in the Florida Keys during the Labor Day Hurricane of 1935 . The highest known pressure measured statewide was 30 @.@ 74 inches / 1041 @.@ 1 hPa in Tallahassee on February 5 , 1996 and January 4 , 1979 . 
