Cumberland, IN 46229 Frost Dates
Cumberland, 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 10/26, roughly 190 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 Cumberland, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Cumberland's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Cumberland against the rest of the dataset
At roughly 190 frost-free days, Cumberland places 21,119 of 40,283 ZIP codes in this dataset. Within IN, it ranks 263 of 927.
Learn more
Before leaning on 46229's figures: zone vs. frost date explains why Zone 6a and Cumberland's frost date answer different questions, while the frost range explains how to read the range around Cumberland's dates instead of trusting one.