Lomira, WI 53048 Frost Dates
When can you plant in Lomira, WI?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/19, about 174 frost-free days later.
Lomira sits in USDA Zone 5a (-20 to -15°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.
What to do before the first frost
About 7 weeks of growing season left in Lomira before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Lomira's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/13 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lomira compares
At roughly 174 frost-free days, Lomira places 27,489 of 40,283 ZIP codes in this dataset. Within WI, it ranks 96 of 860.
Learn more
local microclimates covers what one yard in Lomira can differ from the 53048 normal. zone vs. frost date covers why Zone 5a and Lomira's frost date answer different questions.