Tecumseh, MI 49286 Frost Dates
Tecumseh, MI: when does the frost end?
The last spring frost here typically falls around 05/03, about 248 days from today. Fall's first freeze usually shows up around 10/13, roughly 160 days after the last spring frost.
Tecumseh 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 Tecumseh's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Tecumseh's last frost
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/18 and only about 1 year in 10 sees frost after that.
Tecumseh against the rest of the dataset
At roughly 160 frost-free days, Tecumseh places 32,281 of 40,283 ZIP codes in this dataset. Within MI, it ranks 619 of 1,153.
Learn more
Before leaning on 49286's figures: local microclimates explains what one yard in Tecumseh can differ from the 49286 normal, while zone vs. frost date explains why Zone 6a and Tecumseh's frost date answer different questions.