An urgent frost advisory was issued for parts of Miami-Dade, Broward and Monroe counties by the National Weather Service, alerting farmers and residents of cooler overnight temperatures than first forecast.
The advisory ended at 9 a.m. Thursday. Early temperatures dropped into mid-30s in parts of interior South Florida and other parts of the state.
Temperatures are running a little bit cooler than originally forecast this afternoon, the service announced in the advisory. Temperatures should fall into the mid-30s by sunrise Thursday over the interior areas.
Thursday's high is expected to be near 70.
Feeling the cold blast hardest overnight: the Redland in South Miami-Dade.
Areas of frost may cause damage to agricultural concerns. Precautionary preparedness should be taken, the advisory said.
Farmers in South Miami-Dade monitored the temperature, including preparing sprinkler systems to ward off any freeze.
"This time of the year is the time we've got to put in the work, and it's a lot sleepless nights and long days," South Miami-Dade farmer Sam Accursio told CBS4.
Most of South Florida awoke to temperatures in the mid-40s.