FrostDateCheck

East Jordan, MI 49727 Frost Dates

East Jordan, MI: when does the frost end?

Zone 5b

Typically, the last spring freeze lands around 05/23, roughly 268 days out. Fall's first freeze usually shows up around 10/02, roughly 131 days after the last spring frost.

East Jordan sits in USDA Zone 5b (-15 to -10°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 5 weeks until East Jordan's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

The actual range around East Jordan's last frost

05/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/06 and only about 1 year in 10 sees frost after that.

East Jordan against the rest of the dataset

East Jordan's growing season runs about 131 days, ranking 38,276 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 1,019 of 1,153.

Learn more

Before leaning on 49727's figures: zone vs. frost date explains why Zone 5b and East Jordan's frost date answer different questions, while the frost range explains how to read the range around East Jordan's dates instead of trusting one.