When is the last frost in Saint Petersburg, FL?

Frost occurs in about 23% of years at the nearest NOAA station (St Petersburg Intl Ap, FL), so there is no reliable average last frost date.

When is the first frost in Saint Petersburg, FL?

Frost occurs in about 23% of years at the nearest NOAA station.

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 33716Saint Petersburg, FL

Frost occurs in about 23% of years near Saint Petersburg, based on NOAA 1991-2020 records for the St Petersburg Intl Ap, FL station.

Frost occurs in about 23% of years. Frost-tender plants can usually grow year-round, but cover them if a rare cold snap is forecast.

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 1 · Jan 23 · Feb 17	Dec 22 · Jan 12 · Feb 6	353 days	63%
Frost / freeze (32°F)	Jan 1 · Jan 17 · Feb 6	Dec 27 · Jan 14 · Feb 4	365 days	23%
Hard freeze (28°F)	—	—	365 days	3%

Where these dates come from

ZIP code 33716 is matched to the NOAA station St Petersburg Intl Ap, FL, 6.2 km away, at 11 ft elevation (1 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
St Petersburg Intl Ap, FL (used)	11 ft	Jan 17	Jan 14
St Petersburg, FL	8 ft	Jan 17	Jan 15
St Petersburg Ap, FL	8 ft	—	—
Tampa Intl Ap, FL	19 ft	Jan 20	Jan 12

Frost dates near Saint Petersburg

Saint Petersburg, FL 33729 · last Jan 17, first Jan 14
Clearwater, FL 33762 · last Jan 17, first Jan 14
Pinellas Park, FL 33782 · last Jan 17, first Jan 14
Dunedin, FL 34697 · last Jan 17, first Jan 14
Seminole, FL 33777 · last Jan 17, first Jan 14
Largo, FL 33773 · last Jan 17, first Jan 14
Tampa, FL 33616 · last Jan 20, first Jan 12
Bay Pines, FL 33744 · last Jan 17, first Jan 14

Frequently asked questions

When is the last frost in Saint Petersburg, FL?: Frost occurs in about 23% of years at the nearest NOAA station (St Petersburg Intl Ap, FL), so there is no reliable average last frost date.
When is the first frost in Saint Petersburg, FL?: Frost occurs in about 23% of years at the nearest NOAA station.
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.