FrostDateCheck

Lilburn, GA 30036 Frost Dates

Frost dates for Lilburn, GA, ZIP 30036

Zone 8a

Around 03/25 is the usual last spring frost, about 209 days away. The first fall frost typically arrives around 11/09, about 228 frost-free days later.

Lilburn sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.

What to do before the first frost

Zone 8a around Lilburn has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.

Why 03/25 isn't a guarantee

03/25 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 and you're betting against frost in roughly 9 years out of 10. 04/12 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Lilburn compares

Lilburn's growing season runs about 228 days, ranking 10,750 of 40,283 US ZIP codes measured here, longest to shortest. Within GA, it ranks 606 of 921.

Learn more

zone vs. frost date explains why Zone 8a and Lilburn's frost date answer different questions, and the frost range explains how to read the range around Lilburn's dates instead of trusting one.