Ashton, ID 83438 Frost Dates
When can you plant in Ashton, ID?
The NOAA station nearest to 83438 does not report a usable frost-date normal for either event, so no last-frost or first-frost figure is shown here. The USDA hardiness zone below is still real: Zone 5a (-20 to -15°F average annual minimum).
How Ashton compares
At roughly 49 frost-free days, Ashton places 40,223 of 40,283 ZIP codes in this dataset. Within ID, it ranks 311 of 320.
Learn more
the methodology covers exactly which NOAA and USDA figures feed 83438's numbers. zone vs. frost date covers why Zone 5a and Ashton's frost date answer different questions.