Chignik, AK 99548 Frost Dates
When can you plant in Chignik, AK?
Around 05/11 is the usual last spring frost, about 256 days away. The first fall frost typically arrives around 10/18, about 160 frost-free days later.
Chignik 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
About 7 weeks of growing season left in Chignik 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
05/11 is the middle of 30 years of NOAA records, not a promise. Plant by 04/26 and you're betting against frost in roughly 9 years out of 10. 05/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Chignik compares
Chignik's growing season runs about 160 days, ranking 32,550 of 40,283 US ZIP codes measured here, longest to shortest. Within AK, it ranks 31 of 269.
Learn more
the frost range covers how to read the range around Chignik's dates instead of trusting one. local microclimates covers what one yard in Chignik can differ from the 99548 normal.