When is the last frost in Saint Augustine, FL?

For ZIP code 32084, the average last spring frost (32°F) is February 1, based on NOAA 1991-2020 climate normals for the St Augustine Lighthouse, FL weather station. There is a 1-in-10 chance of a frost after March 3.

When is the first frost in Saint Augustine, FL?

The average first fall frost (32°F) is January 5. There is a 1-in-10 chance of frost by December 7, so tender plants are at risk from that point on.

How long is the growing season in 32084?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 334 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 32084Saint Augustine, FL

The average last spring frost in Saint Augustine is February 1 and the average first fall frost is January 5, giving a typical growing season of about 334 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Feb 1
Average first fall frost: Jan 5
Growing season: 334 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 14 · Feb 17 · Mar 13	Nov 27 · Dec 20 · Jan 20	304 days	98%
Frost / freeze (32°F)	Dec 31 · Feb 1 · Mar 3	Dec 7 · Jan 5 · Feb 10	334 days	79%
Hard freeze (28°F)	Dec 26 · Jan 25 · Feb 22	Dec 16 · Jan 10 · Feb 13	365 days	41%

Where these dates come from

ZIP code 32084 is matched to the NOAA station St Augustine Lighthouse, FL, 8.3 km away, at 12 ft elevation (21 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
St Augustine Lighthouse, FL (used)	12 ft	Feb 1	Jan 5
Hastings 4Ne, FL	10 ft	Feb 14	Dec 30
Federal Pt, FL	5 ft	Jan 31	Jan 4
Palm Coast 6Ne, FL	5 ft	Jan 24	Jan 11

Frost dates near Saint Augustine

Saint Augustine, FL 32085 · last Feb 1, first Jan 5
Jacksonville, FL 32260 · last Feb 1, first Jan 5
Elkton, FL 32033 · last Feb 14, first Dec 30
Ponte Vedra Beach, FL 32082 · last Jan 31, first Jan 10
Ponte Vedra, FL 32081 · last Jan 31, first Jan 10
Saint Johns, FL 32259 · last Feb 1, first Jan 5
Hastings, FL 32145 · last Feb 14, first Dec 30
Bostwick, FL 32007 · last Jan 31, first Jan 4

Frequently asked questions

When is the last frost in Saint Augustine, FL?: For ZIP code 32084, the average last spring frost (32°F) is February 1, based on NOAA 1991-2020 climate normals for the St Augustine Lighthouse, FL weather station. There is a 1-in-10 chance of a frost after March 3.
When is the first frost in Saint Augustine, FL?: The average first fall frost (32°F) is January 5. There is a 1-in-10 chance of frost by December 7, so tender plants are at risk from that point on.
How long is the growing season in 32084?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 334 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.