Klawock, AK 99925 Frost Dates
When can you plant in Klawock, AK?
Around 04/29 is the usual last spring frost, about 244 days away. The first fall frost typically arrives around 10/16, about 169 frost-free days later.
The USDA Plant Hardiness Zone Map puts Klawock in Zone 7b (5 to 10°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 7 weeks of growing season left in Klawock 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
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/13 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Klawock compares
About 169 days separate Klawock's last and first frost, putting it 29,537 of 40,283 ZIP codes nationally. Within AK, it ranks 17 of 269.
Learn more
the frost range covers how to read the range around Klawock's dates instead of trusting one. local microclimates covers what one yard in Klawock can differ from the 99925 normal.