Burlington, IN 46920 Frost Dates
When can you plant in Burlington, IN?
The last spring frost here typically falls around 04/22, about 237 days from today. The first fall frost typically arrives around 10/17, about 179 frost-free days later.
Burlington sits in USDA Zone 6a (-10 to -5°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
About 7 weeks of growing season left in Burlington before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Burlington's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Burlington compares
About 179 days separate Burlington's last and first frost, putting it 25,444 of 40,283 ZIP codes nationally. Within IN, it ranks 538 of 927.
Learn more
local microclimates covers what one yard in Burlington can differ from the 46920 normal. zone vs. frost date covers why Zone 6a and Burlington's frost date answer different questions.