Walkerville, MI 49459 Frost Dates
Walkerville, MI: when does the frost end?
The last spring frost here typically falls around 05/17, about 262 days from today. Fall's first freeze usually shows up around 10/01, roughly 137 days after the last spring frost.
Walkerville 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 Walkerville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Walkerville's last frost
05/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/01 and only about 1 year in 10 sees frost after that.
Walkerville against the rest of the dataset
At roughly 137 frost-free days, Walkerville places 37,586 of 40,283 ZIP codes in this dataset. Within MI, it ranks 944 of 1,153.
Learn more
Before leaning on 49459's figures: local microclimates explains what one yard in Walkerville can differ from the 49459 normal, while zone vs. frost date explains why Zone 5b and Walkerville's frost date answer different questions.