Baker City, OR 97819 Frost Dates
When can you plant in Baker City, OR?
Typically, the last spring freeze lands around 05/25, roughly 270 days out. The first fall frost typically arrives around 09/15, about 111 frost-free days later.
The USDA Plant Hardiness Zone Map puts Baker City in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 3 weeks of growing season left in Baker City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/25 is the middle of 30 years of NOAA records, not a promise. Plant by 05/09 and you're betting against frost in roughly 9 years out of 10. 06/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Baker City compares
About 111 days separate Baker City's last and first frost, putting it 39,453 of 40,283 ZIP codes nationally. Within OR, it ranks 401 of 463.
Learn more
zone vs. frost date covers why Zone 6b and Baker City's frost date answer different questions. the frost range covers how to read the range around Baker City's dates instead of trusting one.