Pilot Rock, OR 97868 Frost Dates
97868, near Pilot Rock, OR: the frost window
The NOAA station nearest to 97868 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).
Pilot Rock against the rest of the dataset
Pilot Rock's growing season runs about 48 days, ranking 40,226 of 40,283 US ZIP codes measured here, longest to shortest. Within OR, it ranks 458 of 463.
Learn more
Two guides worth reading on 97868: the methodology, on exactly which NOAA and USDA figures feed 97868's numbers, and zone vs. frost date, on why Zone 6b and Pilot Rock's frost date answer different questions.