Anderson, AK 99744 Frost Dates
Anderson, AK: when does the frost end?
Typically, the last spring freeze lands around 05/24, roughly 269 days out. Fall's first freeze usually shows up around 09/04, roughly 100 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Anderson in Zone 2a (-50 to -45°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 1 week until Anderson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/24 isn't a guarantee
05/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/12 and only about 1 year in 10 sees frost after that.
Anderson against the rest of the dataset
Anderson's growing season runs about 100 days, ranking 39,725 of 40,283 US ZIP codes measured here, longest to shortest. Within AK, it ranks 199 of 269.
Learn more
Before leaning on 99744's figures: the frost range explains how to read the range around Anderson's dates instead of trusting one, while local microclimates explains what one yard in Anderson can differ from the 99744 normal.