A strong cold front moved southeast through the Florida Peninsula on the 17th, with strong cold air advection causing a hard freeze over large portions of the Nature Coast and west central Florida during the morning of the 18th. Another hard freeze occurred on the morning of the 19th as light winds and clear skies allowed for strong radiational cooling.
The freeze caused unknown amounts of damage to citrus crops in Hernando, Pasco, Hillsborough, Polk, Manatee, Sarasota, Hardee, DeSoto, and Highlands Counties. There was also an unknown amount of damage to strawberry and crops in Hillsborough, Polk, Manatee, Sarasota, and Hardee County. In addition, the freeze also damaged landscaping across west central and southwest Florida.

Frost/Freeze in POLK, FLORIDA
From 18-JAN-18 00:00:00 to 18-JAN-18 08:00:00 (EST-5)
Reported by: COOP Observer

Temperatures dropped into the mid to upper 20s across Polk County for several hours on the morning of the 18th, causing damage to citrus groves, strawberry crops, and landscaping. The coldest temperature reported was 25 degrees at the COOP sites in Lakeland and Lake Wales.

Frost/Freeze in HARDEE, FLORIDA
From 18-JAN-18 00:00:00 to 18-JAN-18 08:00:00 (EST-5)
Reported by: Mesonet

Temperatures dropped into the mid to upper 20s across Hardee County for several hours on the morning of the 18th, causing damage to citrus groves, strawberry crops, and landscaping. The coldest temperature reported was 26 degrees at the FAWN site in Ona.

Frost/Freeze in DE SOTO, FLORIDA
From 18-JAN-18 00:00:00 to 18-JAN-18 08:00:00 (EST-5)
Reported by: Mesonet

Temperatures dropped into the mid to upper 20s across DeSoto County for several hours on the morning of the 18th, causing damage to citrus groves and landscaping. The coldest temperature reported was 27 degrees at the FAWN site in Arcadia.

Frost/Freeze in INLAND PASCO, FLORIDA
From 18-JAN-18 00:00:00 to 18-JAN-18 08:00:00 (EST-5)
Reported by: Mesonet

Temperatures dropped into the mid 20s across inland portions of Pasco County for several hours on the morning of the 18th, causing damage to citrus crops and landscaping. The coldest temperature reported was 24 degrees at the FAWN site in Dade City.

Frost/Freeze in INLAND HERNANDO, FLORIDA
From 18-JAN-18 00:00:00 to 18-JAN-18 08:00:00 (EST-5)
Reported by: ASOS

Temperatures dropped into the low to mid 20s across inland portions of Hernando County for several hours on the morning of the 18th, causing damage to citrus crops and landscaping. The coldest temperature reported was 24 degrees at the ASOS site in Brooksville (KBKV).

Frost/Freeze in INLAND HILLSBOROUGH, FLORIDA
From 18-JAN-18 00:00:00 to 18-JAN-18 08:00:00 (EST-5)
Reported by: COOP Observer

Temperatures dropped into the low to mid 20s across inland portions of Hillsborough County for several hours on the morning of the 18th, causing damage to citrus groves, strawberry crops, and landscaping. The coldest temperature reported was 22 degrees at the COOP site in Plant City.

Frost/Freeze in INLAND MANATEE, FLORIDA
From 18-JAN-18 00:00:00 to 18-JAN-18 08:00:00 (EST-5)
Reported by: COOP Observer

Temperatures dropped into the mid to upper 20s across inland portions of Manatee County for several hours on the morning of the 18th, causing damage to citrus groves, strawberry crops, and landscaping. The coldest temperature reported in Manatee county was 29 degrees at the COOP site in Bradenton, although interior portions were likely colder based off of surrounding observations.

Frost/Freeze in INLAND SARASOTA, FLORIDA
From 18-JAN-18 00:00:00 to 18-JAN-18 08:00:00 (EST-5)
Reported by: Mesonet

Temperatures dropped into the mid to upper 20s across inland portions of Sarasota County for several hours on the morning of the 18th, causing damage to citrus groves, strawberry crops, and landscaping. The coldest temperature reported was 28 degrees at the FAWN site in North Port.

Frost/Freeze in HIGHLANDS, FLORIDA
From 18-JAN-18 00:00:00 to 18-JAN-18 08:00:00 (EST-5)
Reported by: COOP Observer

Temperatures dropped into the mid to upper 20s across Highlands County for several hours on the morning of the 18th, causing damage to citrus groves and landscaping. The coldest temperature reported was 25 degrees at the COOP site near Avon Park.