FrostDateCheck

Teller, AK 99778 Frost Dates

Frost dates for Teller, AK, ZIP 99778

Zone 3a

Typically, the last spring freeze lands around 06/05, roughly 281 days out. The first fall frost typically arrives around 09/03, about 88 frost-free days later.

Zone 3a (-40 to -35°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 Teller, not a forecast for this year.

What to do before the first frost

Zone 3a around Teller has about 1 week 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 Teller's last frost

06/05 is the middle of 30 years of NOAA records, not a promise. Plant by 05/20 and you're betting against frost in roughly 9 years out of 10. 06/26 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Teller compares

Teller's growing season runs about 88 days, ranking 39,959 of 40,283 US ZIP codes measured here, longest to shortest. Within AK, it ranks 234 of 269.

Learn more

zone vs. frost date explains why Zone 3a and Teller's frost date answer different questions, and the frost range explains how to read the range around Teller's dates instead of trusting one.