FrostDateCheck

Leonard, MI 48367 Frost Dates

Leonard, MI: when does the frost end?

Zone 6a

Typically, the last spring freeze lands around 05/04, roughly 249 days out. Fall's first freeze usually shows up around 10/14, roughly 160 days after the last spring frost.

Leonard 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.

Stretching the season past the first frost

With roughly 7 weeks until Leonard's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

The actual range around Leonard's last frost

05/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.

Leonard against the rest of the dataset

At roughly 160 frost-free days, Leonard places 32,505 of 40,283 ZIP codes in this dataset. Within MI, it ranks 647 of 1,153.

Learn more

Before leaning on 48367's figures: the frost range explains how to read the range around Leonard's dates instead of trusting one, while local microclimates explains what one yard in Leonard can differ from the 48367 normal.