Hanover, IN 47138 Frost Dates
Hanover, IN: when does the frost end?
Typically, the last spring freeze lands around 04/18, roughly 233 days out. Fall's first freeze usually shows up around 10/20, roughly 185 days after the last spring frost.
Zone 6b (-5 to 0°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 Hanover, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Hanover's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
Hanover against the rest of the dataset
Hanover's growing season runs about 185 days, ranking 23,149 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 376 of 927.
Learn more
Before leaning on 47138's figures: local microclimates explains what one yard in Hanover can differ from the 47138 normal, while zone vs. frost date explains why Zone 6b and Hanover's frost date answer different questions.