Fernan Lake Village, ID 83814 Frost Dates
When can you plant in Fernan Lake Village, ID?
Typically, the last spring freeze lands around 04/22, roughly 237 days out. The first fall frost typically arrives around 10/18, about 179 frost-free days later.
The USDA Plant Hardiness Zone Map puts Fernan Lake Village in Zone 6b (-5 to 0°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 Fernan Lake Village before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/22 isn't a guarantee
04/22 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Fernan Lake Village compares
Fernan Lake Village's growing season runs about 179 days, ranking 25,509 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 45 of 320.
Learn more
zone vs. frost date covers why Zone 6b and Fernan Lake Village's frost date answer different questions. the frost range covers how to read the range around Fernan Lake Village's dates instead of trusting one.