When is the last frost in Jacksonville, FL?

For ZIP code 32228, the average last spring frost (32°F) is February 1, based on NOAA 1991-2020 climate normals for the Mayport Pilot Stn, FL weather station. There is a 1-in-10 chance of a frost after March 1.

When is the first frost in Jacksonville, FL?

The average first fall frost (32°F) is January 5. There is a 1-in-10 chance of frost by December 10, so tender plants are at risk from that point on.

How long is the growing season in 32228?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 332 days long.

Are these frost dates a forecast?

No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.

Frost dates for 32228Jacksonville, FL

The average last spring frost in Jacksonville is February 1 and the average first fall frost is January 5, giving a typical growing season of about 332 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Feb 1
Average first fall frost: Jan 5
Growing season: 332 days

Frost risk by date

NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.

Spring dates: chance of a frost AFTER the date. Fall dates: chance of a frost BEFORE the date.
Temperature	Last spring: 90% / 50% / 10% chance	First fall: 10% / 50% / 90% chance	Growing season (50%)	Years with at least one
Light frost (36°F)	Jan 20 · Feb 18 · Mar 14	Nov 27 · Dec 20 · Jan 18	301 days	99%
Frost / freeze (32°F)	Jan 1 · Feb 1 · Mar 1	Dec 10 · Jan 5 · Feb 7	332 days	84%
Hard freeze (28°F)	Dec 28 · Jan 22 · Feb 20	Dec 22 · Jan 13 · Feb 10	365 days	43%

Where these dates come from

ZIP code 32228 is matched to the NOAA station Mayport Pilot Stn, FL, 2.8 km away, at 16 ft elevation (13 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Mayport Pilot Stn, FL (used)	16 ft	Feb 1	Jan 5
Jacksonville Craig Muni Ap, FL	41 ft	Feb 9	Dec 31
Jacksonville Beach, FL	10 ft	Jan 31	Jan 10
Jacksonville Nas, FL	20 ft	Feb 1	Jan 5

Frost dates near Jacksonville

Jacksonville, FL 32227 · last Feb 1, first Jan 5
Atlantic Beach, FL 32233 · last Feb 1, first Jan 5
Neptune Beach, FL 32266 · last Jan 31, first Jan 10
Jacksonville Beach, FL 32240 · last Jan 31, first Jan 10
Ponte Vedra Beach, FL 32004 · last Jan 31, first Jan 10
Ponte Vedra, FL 32081 · last Jan 31, first Jan 10
Yulee, FL 32097 · last Feb 25, first Dec 7
Fernandina Beach, FL 32034 · last Feb 19, first Dec 14

Frequently asked questions

When is the last frost in Jacksonville, FL?: For ZIP code 32228, the average last spring frost (32°F) is February 1, based on NOAA 1991-2020 climate normals for the Mayport Pilot Stn, FL weather station. There is a 1-in-10 chance of a frost after March 1.
When is the first frost in Jacksonville, FL?: The average first fall frost (32°F) is January 5. There is a 1-in-10 chance of frost by December 10, so tender plants are at risk from that point on.
How long is the growing season in 32228?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 332 days long.
Are these frost dates a forecast?: No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.