Ravenna, MI 49451 Frost Dates
When can you plant in Ravenna, MI?
The last spring frost here typically falls around 05/14, about 259 days from today. The first fall frost typically arrives around 09/29, about 135 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 Ravenna, not a forecast for this year.
What to do before the first frost
About 5 weeks of growing season left in Ravenna before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Ravenna's last frost
05/14 is the middle of 30 years of NOAA records, not a promise. Plant by 04/29 and you're betting against frost in roughly 9 years out of 10. 05/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ravenna compares
About 135 days separate Ravenna's last and first frost, putting it 37,879 of 40,283 ZIP codes nationally. Within MI, it ranks 975 of 1,153.
Learn more
local microclimates covers what one yard in Ravenna can differ from the 49451 normal. zone vs. frost date covers why Zone 6a and Ravenna's frost date answer different questions.