Saginaw, MI 48607 Frost Dates
Saginaw, MI: when does the frost end?
Around 04/29 is the usual last spring frost, about 244 days away. Fall's first freeze usually shows up around 10/21, roughly 175 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Saginaw in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until Saginaw'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
04/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Saginaw against the rest of the dataset
About 175 days separate Saginaw's last and first frost, putting it 26,748 of 40,283 ZIP codes nationally. Within MI, it ranks 131 of 1,153.
Learn more
Before leaning on 48607's figures: the frost range explains how to read the range around Saginaw's dates instead of trusting one, while local microclimates explains what one yard in Saginaw can differ from the 48607 normal.