Notus, ID 83607 Frost Dates
When can you plant in Notus, ID?
The last spring frost here typically falls around 04/29, about 244 days from today. The first fall frost typically arrives around 10/13, about 164 frost-free days later.
Zone 7a (0 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 Notus, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Notus before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/29 isn't a guarantee
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Notus compares
Notus's growing season runs about 164 days, ranking 31,111 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 78 of 320.
Learn more
local microclimates covers what one yard in Notus can differ from the 83607 normal. zone vs. frost date covers why Zone 7a and Notus's frost date answer different questions.