Salmon, ID 83229 Frost Dates
83229, near Salmon, ID: the frost window
The NOAA station nearest to 83229 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 5b (-15 to -10°F average annual minimum).
Salmon against the rest of the dataset
Salmon's growing season runs about 50 days, ranking 40,217 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 307 of 320.
Learn more
Two guides worth reading on 83229: the methodology, on exactly which NOAA and USDA figures feed 83229's numbers, and zone vs. frost date, on why Zone 5b and Salmon's frost date answer different questions.