Swartz Creek, MI 48554 Frost Dates
When can you plant in Swartz Creek, MI?
Typically, the last spring freeze lands around 05/06, roughly 251 days out. The first fall frost typically arrives around 10/10, about 155 frost-free days later.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Swartz Creek, not a forecast for this year.
What to do before the first frost
About 6 weeks of growing season left in Swartz Creek before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Swartz Creek's last frost
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Swartz Creek compares
At roughly 155 frost-free days, Swartz Creek places 33,955 of 40,283 ZIP codes in this dataset. Within MI, it ranks 778 of 1,153.
Learn more
zone vs. frost date covers why Zone 6a and Swartz Creek's frost date answer different questions. the frost range covers how to read the range around Swartz Creek's dates instead of trusting one.