When is the last frost in Moore Haven, FL?

For ZIP code 33471, the average last spring frost (32°F) is January 27, based on NOAA 1991-2020 climate normals for the Ortona Lock 2, FL weather station. There is a 1-in-10 chance of a frost after February 27.

When is the first frost in Moore Haven, FL?

The average first fall frost (32°F) is January 11. There is a 1-in-10 chance of frost by December 18, so tender plants are at risk from that point on.

How long is the growing season in 33471?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 348 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 33471Moore Haven, FL

The average last spring frost in Moore Haven is January 27 and the average first fall frost is January 11, giving a typical growing season of about 348 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 27
Average first fall frost: Jan 11
Growing season: 348 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 12 · Feb 10 · Mar 12	Dec 4 · Jan 1 · Jan 29	319 days	95%
Frost / freeze (32°F)	Jan 1 · Jan 27 · Feb 27	Dec 18 · Jan 11 · Feb 10	348 days	69%
Hard freeze (28°F)	Dec 30 · Jan 16 · Feb 10	Dec 26 · Jan 11 · Feb 9	365 days	26%

Where these dates come from

ZIP code 33471 is matched to the NOAA station Ortona Lock 2, FL, 9.8 km away, at 20 ft elevation (0 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Ortona Lock 2, FL (used)	20 ft	Jan 27	Jan 11
Moore Haven Lock 1, FL	35 ft	Jan 23	Jan 11
Clewiston #2, FL	18 ft	Jan 27	Jan 13
Devils Garden, FL	26 ft	Jan 25	Jan 13

Frost dates near Moore Haven

Palmdale, FL 33944 · last Jan 27, first Jan 11
Labelle, FL 33975 · last Feb 2, first Jan 8
Clewiston, FL 33440 · last Jan 23, first Jan 11
Venus, FL 33960 · last Feb 26, first Dec 22
Felda, FL 33930 · last Jan 23, first Jan 11
Lake Harbor, FL 33459 · last —, first —
Alva, FL 33920 · last Feb 2, first Jan 8
Lehigh Acres, FL 33972 · last Jan 17, first Jan 16

Frequently asked questions

When is the last frost in Moore Haven, FL?: For ZIP code 33471, the average last spring frost (32°F) is January 27, based on NOAA 1991-2020 climate normals for the Ortona Lock 2, FL weather station. There is a 1-in-10 chance of a frost after February 27.
When is the first frost in Moore Haven, FL?: The average first fall frost (32°F) is January 11. There is a 1-in-10 chance of frost by December 18, so tender plants are at risk from that point on.
How long is the growing season in 33471?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 348 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.