US Grow Zones

Melbourne, Florida: planting zone & frost dates

Last updated · Sources: PRISM/OSU 2023 ZIP zone listings; NOAA NCEI 1991–2020 Climate Normals (station USC00085612); U.S. Census Bureau — see methodology

Melbourne is in USDA plant hardiness zone 10a, where the average coldest winter night reaches 30 to 35°F (-1.1 to 1.7°C). The typical last spring frost is around Feb 5 and the first fall frost around Jan 1.

Hardiness zone10A30 to 35°F
Last spring frostFeb 530% chance of frost after
First fall frostJan 130% chance of frost before
Growing season359 daysmedian frost-free days

Frost dates

ProbabilityLast spring frost (32°F)First fall frost (32°F)
Safer (10% risk)Feb 24Dec 20
Typical planning date (30% risk)Feb 5Jan 1
Median (50%)Jan 24Jan 9

How to read this: after the spring "10% risk" date, a 32°F frost happens in only about 1 year in 10. In fall, the "10% risk" date is the early end — a frost before it happens about 1 year in 10.

Frost data comes from NOAA station MELBOURNE WFO, FL (USC00085612), 0.6 mi (0.9 km) from the city center and 7 ft higher than the city center (+2 m). Record used for the 1991–2020 normals: 29 years.

Frost probability in spring and fall, Melbourne, FLChance of a 32°F frost in Melbourne, FL, NOAA 1991–2020. Spring: the chance of another frost falls from 90% on Dec 29 to 10% on Feb 24. Fall: the chance that the first frost has arrived rises from 10% on Dec 20 to 90% on Feb 13.0%50%100%Spring: later frostJan 1Feb 1Mar 130%: Feb 5Fall: frost arrivedDec 15Jan 15Feb 1530%: Jan 132°F frost28°F hard freezeplanning date
Shaded areas show the chance of a 32°F frost: falling through spring, rising through fall. The dashed line is the 28°F hard-freeze curve. Data: NOAA 1991–2020 Normals, station USC00085612.
Frost-free growing season in Melbourne, FL1 in 10 risk: Feb 24 to Dec 20 (299 days); 3 in 10 risk: Feb 5 to Jan 1 (330 days); Median (50%): Jan 24 to Jan 9 (350 days); No 28°F freeze: Jan 15 to Jan 10 (360 days). In 9 of 10 years the 32°F-free season is at least 316 days.Frost-free days, spring to fallJFMAMJJASOND1 in 10 risk299 days3 in 10 risk330 daysMedian (50%)350 daysNo 28°F freeze360 days
Frost-free window at three risk levels, plus the window between 28°F hard freezes. Read about what the probabilities mean.

Why your yard may differ from the station: microclimates.

Hardiness zone across Melbourne

All 6 ZIP codes covering Melbourne are in zone 10a.

ZIP codes in Melbourne and their zones
ZIPZoneShare of city land
3293510a27.5%
3290110a27.2%
3293410a23.2%
3290410a17.6%
3290310a2.1%
3294010a1.6%

Vegetable planting calendar for Melbourne

Dates are counted from the 30%-risk frost dates above (last frost Feb 5, first frost Jan 1). Shift a week later in cold spots or low-lying ground.

CropStart indoorsTransplant / plant outDirect sowFall crop sow/plant
TomatoDec 11 – Dec 25Feb 12 – Feb 26——
PepperNov 27 – Dec 11Feb 19 – Mar 5——
Lettuce
Mild winters: fall and winter plantings are usually more reliable than spring.
Dec 25 – Jan 8Jan 22 – Feb 12Jan 8 – Feb 19Oct 23 – Nov 20
Green Beans——Feb 12 – Mar 19Oct 9 – Oct 23
Sweet Corn——Feb 12 – Mar 12—
Zucchini & Summer SquashJan 8 – Jan 15Feb 12 – Feb 26Feb 12 – Mar 5Oct 9 – Oct 23
CucumberJan 8 – Jan 15Feb 19 – Feb 26Feb 12 – Mar 5Oct 9 – Oct 23
Carrot
Mild winters: fall and winter plantings are usually more reliable than spring.
——Jan 15 – Feb 19Oct 9 – Oct 23
Onion
Mild winters: fall and winter plantings are usually more reliable than spring.
Nov 13 – Nov 27Jan 8 – Jan 22——
Potato
Mild winters: fall and winter plantings are usually more reliable than spring.
—Jan 8 – Jan 29——
BasilDec 25 – Jan 8Feb 19 – Mar 5Feb 19 – Mar 12—
Spinach
Mild winters: fall and winter plantings are usually more reliable than spring.
——Dec 25 – Jan 22Nov 6 – Dec 4
Kale
Mild winters: fall and winter plantings are usually more reliable than spring.
Dec 11 – Dec 25Jan 8 – Jan 29Jan 8 – Jan 29Oct 23 – Nov 20
Broccoli
Mild winters: fall and winter plantings are usually more reliable than spring.
Dec 11 – Dec 25Jan 22 – Feb 12—Oct 9 – Oct 23
Peas
Mild winters: fall and winter plantings are usually more reliable than spring.
——Dec 25 – Jan 15Oct 23 – Nov 6
EggplantNov 27 – Dec 11Feb 19 – Mar 5——
Cabbage
Mild winters: fall and winter plantings are usually more reliable than spring.
Dec 11 – Dec 25Jan 8 – Jan 22—Oct 9 – Oct 23
Radish
Mild winters: fall and winter plantings are usually more reliable than spring.
——Jan 1 – Feb 19Nov 20 – Dec 18
Strawberry—Jan 8 – Jan 29——
Beets
Mild winters: fall and winter plantings are usually more reliable than spring.
——Jan 15 – Feb 26Oct 23 – Nov 6

Nearby cities in Florida

More: all Florida cities · other zone 10a cities: Los Angeles, CA, Oakland, CA, Tampa, FL, Orlando, FL, Riverside, CA, Corpus Christi, TX, Port St. Lucie, FL, Scottsdale, AZ

Melbourne gardening questions

When is the last frost in Melbourne, FL?

Plan around Feb 5. At NOAA's Melbourne Wfo, FL station, 0.6 mi from the city center, there is a 30% chance of a 32°F frost after that date. Half of springs have their last frost by Jan 24, and after Feb 24 the risk drops to about 1 in 10. A hard freeze (28°F) usually ends earlier, around Jan 15. Springs here are erratic: 57 days separate the 90% and 10% dates, versus a median of 36 days for cities on this site, so watch the forecast rather than the calendar.

When should I plant tomatoes in Melbourne, FL?

Start seeds indoors Dec 11 – Dec 25 and set transplants outside Feb 12 – Feb 26, once nights stay above 50°F and the soil is near 60°F. With about 330 frost-free days, frost is not the main limit — fruit set drops when nights stay above about 75°F, so early plantings tend to do best. More: tomato planting dates by zone.

How long is the growing season in Melbourne?

About 359 days without a 32°F frost in a typical (median) year. In 9 years out of 10 the season lasts at least 316 days, and in 1 year in 10 it runs 365 days or more. In fall there is a 10% chance of frost by Dec 20 and a 30% chance by Jan 1. That ranks 11th longest of 20 Florida cities on this site.

When should I plant a fall garden in Melbourne?

Count back from the first fall frost (Jan 1): transplant broccoli Oct 9 – Oct 23; sow kale Oct 23 – Nov 20; sow lettuce Oct 23 – Nov 20; sow radishes Nov 20 – Dec 18. Hardy crops keep growing through light frosts; the median 28°F hard freeze here is Jan 10. How the math works: succession and fall planting.

Did Melbourne's hardiness zone change on the 2023 map?

Yes. Most of Melbourne was zone 9b on the 2012 map and is zone 10a on the 2023 map — half a zone warmer, like about 56% of U.S. ZIP codes. The shift comes from a newer 1991–2020 averaging period plus more weather stations and better mapping; it does not mean last frost comes earlier. Why the 2023 map is warmer.

How does Melbourne compare with Palm Bay, FL?

Both are in zone 10a. The typical last spring frost in Melbourne (Feb 5) comes about 6 days later than in Palm Bay, FL (Jan 30), 11 miles away, and the first fall frost is Jan 1 versus Jan 6. The two cities use different NOAA stations.