Hines, OR 97721 Frost Dates
Frost dates for Hines, OR, ZIP 97721
Typically, the last spring freeze lands around 06/07, roughly 283 days out. The first fall frost typically arrives around 09/06, about 89 frost-free days later.
Hines sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 6b around Hines has about 1 week left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Hines's last frost
06/07 is the middle of 30 years of NOAA records, not a promise. Plant by 05/21 and you're betting against frost in roughly 9 years out of 10. 06/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hines compares
About 89 days separate Hines's last and first frost, putting it 39,920 of 40,283 ZIP codes nationally. Within OR, it ranks 438 of 463.
Learn more
zone vs. frost date explains why Zone 6b and Hines's frost date answer different questions, and the frost range explains how to read the range around Hines's dates instead of trusting one.