FrostDateByZip

Frost dates for 32457Port Saint Joe, FL

The average last spring frost in Port Saint Joe is February 15 and the average first fall frost is December 18, giving a typical growing season of about 307 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Feb 15

Safer after Mar 11 (1-in-10 risk)

Average first fall frost
Dec 18

Possible by Nov 21 (1-in-10 risk)

Growing season
307 days

First frost typically in 45 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 7 · Mar 3 · Mar 23Nov 7 · Nov 27 · Dec 28272 days100%
Frost / freeze (32°F)Jan 17 · Feb 15 · Mar 11Nov 21 · Dec 18 · Jan 17307 days97%
Hard freeze (28°F)Jan 1 · Jan 31 · Mar 1Dec 8 · Jan 5 · Feb 4339 days79%

Where these dates come from

ZIP code 32457 is matched to the NOAA station Apalachicola Ap, FL, 27.5 km away, at 19 ft elevation (12 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Apalachicola Ap, FL (used)19 ftFeb 15Dec 18
Apalachicola Airport, FL20 ftFeb 20Dec 13
Wewahitchka, FL42 ftMar 1Nov 29
Panama City Bay Co Ap, FL21 ftFeb 7Dec 24

Frost dates near Port Saint Joe

Frequently asked questions

When is the last frost in Port Saint Joe, FL?
For ZIP code 32457, the average last spring frost (32°F) is February 15, based on NOAA 1991-2020 climate normals for the Apalachicola Ap, FL weather station. There is a 1-in-10 chance of a frost after March 11.
When is the first frost in Port Saint Joe, FL?
The average first fall frost (32°F) is December 18. There is a 1-in-10 chance of frost by November 21, so tender plants are at risk from that point on.
How long is the growing season in 32457?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 307 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.