Egegik, AK 99670 Frost Dates
99670, near Egegik, AK: the frost window
The last spring frost here typically falls around 05/26, about 271 days from today. Fall's first freeze usually shows up around 09/15, roughly 111 days after the last spring frost.
Zone 4b (-25 to -20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Egegik, not a forecast for this year.
Stretching the season past the first frost
Egegik's growing season runs out in roughly 3 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/26 isn't a guarantee
05/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/11 and only about 1 year in 10 sees frost after that.
Egegik against the rest of the dataset
At roughly 111 frost-free days, Egegik places 39,495 of 40,283 ZIP codes in this dataset. Within AK, it ranks 169 of 269.
Learn more
Two guides worth reading on 99670: zone vs. frost date, on why Zone 4b and Egegik's frost date answer different questions, and the frost range, on how to read the range around Egegik's dates instead of trusting one.