Ferdinand, ID 83526 Frost Dates
When can you plant in Ferdinand, ID?
Around 05/06 is the usual last spring frost, about 251 days away. The first fall frost typically arrives around 10/13, about 156 frost-free days later.
The USDA Plant Hardiness Zone Map puts Ferdinand in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 7 weeks of growing season left in Ferdinand before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/06 isn't a guarantee
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/22 and you're betting against frost in roughly 9 years out of 10. 05/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ferdinand compares
Ferdinand's growing season runs about 156 days, ranking 33,869 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 92 of 320.
Learn more
local microclimates covers what one yard in Ferdinand can differ from the 83526 normal. zone vs. frost date covers why Zone 6a and Ferdinand's frost date answer different questions.