Island Park, ID 83429 Frost Dates
83429, near Island Park, ID: the frost window
The NOAA station nearest to 83429 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 4a (-30 to -25°F average annual minimum).
Island Park against the rest of the dataset
Island Park's growing season runs about 49 days, ranking 40,224 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 312 of 320.
Learn more
Two guides worth reading on 83429: local microclimates, on what one yard in Island Park can differ from the 83429 normal, and the methodology, on exactly which NOAA and USDA figures feed 83429's numbers.