FrostDateCheck

Wrangell, AK 99929 Frost Dates

When can you plant in Wrangell, AK?

Zone 7b

Typically, the last spring freeze lands around 04/11, roughly 226 days out. The first fall frost typically arrives around 11/01, about 202 frost-free days later.

Wrangell sits in USDA Zone 7b (5 to 10°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 9 weeks of growing season left in Wrangell 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

04/11 is the middle of 30 years of NOAA records, not a promise. Plant by 03/26 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Wrangell compares

At roughly 202 frost-free days, Wrangell places 17,264 of 40,283 ZIP codes in this dataset. Within AK, it ranks 4 of 269.

Learn more

zone vs. frost date covers why Zone 7b and Wrangell's frost date answer different questions. the frost range covers how to read the range around Wrangell's dates instead of trusting one.