FrostDateByZip

Frost dates for 32225Jacksonville, 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

Safer after Mar 7 (1-in-10 risk)

Average first fall frost
Dec 31

Possible by Nov 30 (1-in-10 risk)

Growing season
314 days

First frost typically in 58 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.
TemperatureLast spring: 90% / 50% / 10% chanceFirst fall: 10% / 50% / 90% chanceGrowing season (50%)Years with at least one
Light frost (36°F)Feb 1 · Mar 1 · Mar 22Nov 17 · Dec 6 · Jan 5283 days100%
Frost / freeze (32°F)Jan 12 · Feb 9 · Mar 7Nov 30 · Dec 31 · Jan 31314 days96%
Hard freeze (28°F)Dec 29 · Jan 26 · Feb 24Dec 9 · Jan 8 · Feb 5348 days67%

Where these dates come from

ZIP code 32225 is matched to the NOAA station Jacksonville Craig Muni Ap, FL, 1.9 km away, at 41 ft elevation (5 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Jacksonville Craig Muni Ap, FL (used)41 ftFeb 9Dec 31
Mayport Pilot Stn, FL16 ftFeb 1Jan 5
Jacksonville Beach, FL10 ftJan 31Jan 10
Jacksonville Nas, FL20 ftFeb 1Jan 5

Frost dates near Jacksonville

Frequently asked questions

When is the last frost in Jacksonville, FL?
For ZIP code 32225, 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 32225?
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.