Burlington, IN 46998 Frost Dates
Burlington, IN: when does the frost end?
The last spring frost here typically falls around 04/27, about 242 days from today. Fall's first freeze usually shows up around 10/18, roughly 174 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Burlington, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Burlington's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Burlington's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Burlington against the rest of the dataset
About 174 days separate Burlington's last and first frost, putting it 27,591 of 40,283 ZIP codes nationally. Within IN, it ranks 684 of 927.
Learn more
Before leaning on 46998's figures: local microclimates explains what one yard in Burlington can differ from the 46998 normal, while zone vs. frost date explains why Zone 6a and Burlington's frost date answer different questions.