Lilburn, GA 30042 Frost Dates
Lilburn, GA: when does the frost end?
Around 03/25 is the usual last spring frost, about 209 days away. Fall's first freeze usually shows up around 11/09, roughly 228 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Lilburn in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 10 weeks until Lilburn's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/25 isn't a guarantee
03/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/12 and only about 1 year in 10 sees frost after that.
Lilburn against the rest of the dataset
Lilburn's growing season runs about 228 days, ranking 10,752 of 40,283 US ZIP codes measured here, longest to shortest. Within GA, it ranks 608 of 921.
Learn more
Before leaning on 30042's figures: zone vs. frost date explains why Zone 8a and Lilburn's frost date answer different questions, while the frost range explains how to read the range around Lilburn's dates instead of trusting one.