Toksook Bay, AK 99681 Frost Dates
Frost dates for Toksook Bay, AK, ZIP 99681
Typically, the last spring freeze lands around 05/21, roughly 266 days out. The first fall frost typically arrives around 09/22, about 122 frost-free days later.
The USDA Plant Hardiness Zone Map puts Toksook Bay in Zone 4a (-30 to -25°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
Zone 4a around Toksook Bay has about 4 weeks 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 Toksook Bay's last frost
05/21 is the middle of 30 years of NOAA records, not a promise. Plant by 05/08 and you're betting against frost in roughly 9 years out of 10. 06/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Toksook Bay compares
Toksook Bay's growing season runs about 122 days, ranking 38,960 of 40,283 US ZIP codes measured here, longest to shortest. Within AK, it ranks 109 of 269.
Learn more
zone vs. frost date explains why Zone 4a and Toksook Bay's frost date answer different questions, and the frost range explains how to read the range around Toksook Bay's dates instead of trusting one.