Troy, ID 83871 Frost Dates
Frost dates for Troy, ID, ZIP 83871
The NOAA station nearest to 83871 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 6b (-5 to 0°F average annual minimum).
How Troy compares
Troy's growing season runs about 85 days, ranking 39,988 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 276 of 320.
Learn more
local microclimates explains what one yard in Troy can differ from the 83871 normal, and the methodology explains exactly which NOAA and USDA figures feed 83871's numbers.