West Salem, WI 54669 Frost Dates
Frost dates for West Salem, WI, ZIP 54669
The last spring frost here typically falls around 04/27, about 242 days from today. The first fall frost typically arrives around 10/13, about 167 frost-free days later.
Zone 5a (-20 to -15°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 West Salem, not a forecast for this year.
What to do before the first frost
Zone 5a around West Salem has about 7 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around West Salem's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How West Salem compares
West Salem's growing season runs about 167 days, ranking 29,950 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 160 of 860.
Learn more
local microclimates explains what one yard in West Salem can differ from the 54669 normal, and zone vs. frost date explains why Zone 5a and West Salem's frost date answer different questions.