Planting Date FinderZone, frost date, planting window

Planting calendar for Tallahassee, FL

Direct answer. In Tallahassee, FL, the median last 32°F date at TALLAHASSEE, FL US (USW00093805) is March 11, and the median first 32°F date is November 21. The station is 6 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 March 11. Median first 32°F November 21. Frost dates for Tallahassee.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.
Median last 32°F is March 11. Median first 32°F is November 21. The 50% growing-season length is 255 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%February 18Earlier date. A last 32°F on or after this day is common.
50%March 11Median.
10%March 30Later 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%November 3Earlier date. A first 32°F on or before this day is uncommon.
50%November 21Median.
90%December 14Later 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%286
50%255
90%226

28°F threshold

10%50%90%
Last, on or afterMarch 17February 25January 28
First, on or beforeNovember 15December 6January 9
Season at least325 days290 days256 days

36°F threshold

10%50%90%
Last, on or afterApril 15March 25March 5
First, on or beforeOctober 24November 9December 1
Season at least255 days228 days202 days

Station TALLAHASSEE, FL US (USW00093805). Completeness flag S, 30 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 19.2 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, March 11, when the guide does not name a probability. Weeks before the first freeze use the median first 32°F date, November 21. 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 6 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

Tallahassee, FL

Zone 9aAverage annual extreme minimum 20°F to 25°F

Median last 32°F is March 11. Median first 32°F is November 21. The 50% growing-season length is 255 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: TALLAHASSEE, FL US (USW00093805), 6 miles. Median last 32°F March 11. Median first 32°F November 21. The 50% growing-season length is 255 days.

Open the ZIP page · Crop guides for Florida

32°F probabilities at this station
10%50%90%
Last 32°F on or afterMarch 30March 11February 18
First 32°F on or beforeNovember 3November 21December 14

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