When is the last frost in Jacksonville, FL?

For ZIP code 32246, the average last spring frost (32°F) is February 9, based on NOAA 1991-2020 climate normals for the Jacksonville Craig Muni Ap, FL weather station. There is a 1-in-10 chance of a frost after March 7.

When is the first frost in Jacksonville, FL?

The average first fall frost (32°F) is December 31. There is a 1-in-10 chance of frost by November 30, so tender plants are at risk from that point on.

How long is the growing season in 32246?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 314 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 32246Jacksonville, FL

The average last spring frost in Jacksonville is February 9 and the average first fall frost is December 31, giving a typical growing season of about 314 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Feb 9
Average first fall frost: Dec 31
Growing season: 314 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)	Feb 1 · Mar 1 · Mar 22	Nov 17 · Dec 6 · Jan 5	283 days	100%
Frost / freeze (32°F)	Jan 12 · Feb 9 · Mar 7	Nov 30 · Dec 31 · Jan 31	314 days	96%
Hard freeze (28°F)	Dec 29 · Jan 26 · Feb 24	Dec 9 · Jan 8 · Feb 5	348 days	67%

Where these dates come from

ZIP code 32246 is matched to the NOAA station Jacksonville Craig Muni Ap, FL, 4.8 km away, at 41 ft elevation (5 ft higher than the ZIP code's center). Nearby stations for comparison:

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

Frost dates near Jacksonville

Jacksonville, FL 32203 · last Feb 9, first Dec 31
Jacksonville Beach, FL 32250 · last Jan 31, first Jan 10
Neptune Beach, FL 32266 · last Jan 31, first Jan 10
Atlantic Beach, FL 32233 · last Feb 1, first Jan 5
Ponte Vedra Beach, FL 32004 · last Jan 31, first Jan 10
Ponte Vedra, FL 32081 · last Jan 31, first Jan 10
Orange Park, FL 32067 · last Feb 1, first Jan 5
Saint Johns, FL 32259 · last Feb 1, first Jan 5

Frequently asked questions

When is the last frost in Jacksonville, FL?: For ZIP code 32246, the average last spring frost (32°F) is February 9, based on NOAA 1991-2020 climate normals for the Jacksonville Craig Muni Ap, FL weather station. There is a 1-in-10 chance of a frost after March 7.
When is the first frost in Jacksonville, FL?: The average first fall frost (32°F) is December 31. There is a 1-in-10 chance of frost by November 30, so tender plants are at risk from that point on.
How long is the growing season in 32246?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 314 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.