Planting Date FinderZone, frost date, planting window

Planting calendar for Miami, FL

Direct answer. In Miami, FL, the median last 32°F date at PERRINE 4W, FL US (USC00087020) is January 18, and the median first 32°F date is January 13. The station is 19.5 miles from the city point. Crop windows come from UF/IFAS. Where that guide counts weeks from a frost date and does not name a 10%, 50%, or 90% level, those weeks are applied to these median dates.

Median last 32°F January 18. Median first 32°F January 13. Frost dates for Miami.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.
Median last 32°F is January 18. Median first 32°F is January 13. The 50% growing-season length is 365 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

ProbabilityDateHow to read it
90%December 31Earlier date. A last 32°F on or after this day is common.
50%January 18Median.
10%February 1Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

ProbabilityDateHow to read it
10%December 31Earlier date. A first 32°F on or before this day is uncommon.
50%January 13Median.
90%February 1Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this longDays
10%365
50%365
90%361

36°F threshold

10%50%90%
Last, on or afterFebruary 23January 25December 30
First, on or beforeDecember 20January 15February 13
Season at least365 days365 days318 days

Station PERRINE 4W, FL US (USC00087020). Completeness flag S, 29 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 11.4%. Freeze dates are conditional on that threshold occurring. Elevation 3 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Questions

Which frost date do the crop weeks use?
Weeks after the frost-free date use the median last 32°F date, January 18, when the guide does not name a probability. Weeks before the first freeze use the median first 32°F date, January 13. Both medians are 50% dates in the NOAA 1991–2020 normals for the station on this page. The page says when that anchor was used.
Where do the crop dates come from?
Crop dates come from the extension guide cited on this page, not from a second calendar invented here. The publisher and the title are printed with the source note. A month without a day is expanded to the first and last day of that month, and the page says so. A phrase without two dates stays a phrase.
Is this planting calendar a forecast?
No. The frost dates are 1991–2020 climate normals at the station 19.5 miles from the city point. The crop windows are the cited guide’s ranges, shifted only when that guide itself used weeks. A cold spring can still fall past the median. The National Weather Service forecast covers a particular night. This page does not.

Crops in the cited guide

SowBush beansNorthMar–Apr · Aug–SeptCentralFeb–Apr · Aug–SeptSouthSept–Apr45–60 days to harvestSowBeetsNorthSept–MarCentralSept–FebSouthOct–Jan50–70 days to harvestSowBroccoliNorthSep–FebCentralSept–FebSouthOct–Jan75–90 (50–70) days to harvestSowCabbageNorthSept–FebCentralSept–FebSouthSept–Jan85–110 (70–90) days to harvestSowCarrotsNorthSept–MarCentralAug–MarSouthSept–Mar70–120 days to harvestSowCollardsNorthFeb–April · Sept–NovCentralSept–FebSouthSept–Jan70–90 (50–70) days to harvestSowSweet cornNorthMar–Apr · AugCentralJan–AprSouthOct–Mar65–90 days to harvestSowEggplantNorthMid Mar–JulCentralJan–Feb · Aug–SeptSouthAug–Feb90–115 (70–90) days to harvestSowKaleNorthSept–FebCentralSept–FebSouthSept–Jan50–70 days to harvestSowLettuceNorthFeb–MarCentralSept–FebSouthSept–Feb60–80 days to harvestSowOkraNorthLate Mar–JulyCentralFeb–AugSouthJan–Mar · Aug–Oct60–70 days to harvestSowOnions, bulbingNorthSept–DecCentralOctSouthOct100–130 days to harvestSowOnions, bunching (green and shallots)NorthSep–MarCentralAug–MarSouthSept–Mar50–75 (green) 75–100 (shallots) days to harvestSowPeas, snow or EnglishNorthJan–MarCentralNov–FebSouthNov–Feb60–80 days to harvestSowPeas, southernNorthMid Mar– AugCentralFeb–AugSouthSept–Apr75–90 days to harvestSowPeppersNorthLate Mar–Apr · July– AugCentralJan–Mar · Aug–SeptSouthAug–Feb90–100 (65–75) days to harvestSowPotatoes, IrishNorthJan–MarCentralNov–FebSouthOct–Jan85–110 days to harvestSowPumpkinNorthEarly JulyCentralMid JulySouthEarly Aug80–100 (70–90) days to harvestSowRadishNorthSept–MarCentralSept–MarSouthOct–Mar20–30 days to harvestSowSpinachNorthOct–NovCentralSept–MarSouthOct–Feb45–60 days to harvestSowSummer squashNorthLate Mar–Apr · Aug–SeptCentralJan–Apr · Aug–SeptSouthAug–Mar40–50 days to harvestSowWinter squashNorthFeb–Apr · Aug–SeptCentralJan–Apr · Aug–SeptSouthAug–Mar85–120 days to harvestSowSwiss chardNorthSept–MarCentralSept–MaySouthSept–Mar45–60 days to harvestSowTomatoesNorthLate Mar–Apr · AugCentralJan–Feb · Aug–SeptSouthAug–Feb90–110 (70–90) days to harvestSowTurnipsNorthJan–Apr · Sept–OctCentralSept–FebSouthSept–Jan40–60 days to harvestSowWatermelonNorthLate Mar–Apr · July–AugCentralJan–MarSouthDec–Mar80–100 (60–90) days to harvest

Miami, FL

Zone 11aAverage annual extreme minimum 40°F to 45°F

Median last 32°F is January 18. Median first 32°F is January 13. The 50% growing-season length is 365 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Florida. Nearest qualified station: PERRINE 4W, FL US (USC00087020), 19.5 miles. Median last 32°F January 18. Median first 32°F January 13. The 50% growing-season length is 365 days.

Open the ZIP page · Crop guides for Florida

32°F probabilities at this station
10%50%90%
Last 32°F on or afterFebruary 1January 18December 31
First 32°F on or beforeDecember 31January 13February 1

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.

Planting calendar

Windows below are from UF/IFAS, Florida Vegetable Gardening Guide (SP 103/VH021), retrieved 2026-10-10. North = all of Florida north of State Road 40; central = the section of Florida between State Roads 40 and 70; south = all of Florida below State Road 70.

Date checks use your device’s calendar and appear after the page loads.

State crop pages: Bush beans · Beets · Broccoli · Cabbage · Carrots · Collards · Sweet corn · Eggplant