Last frost dates in Alaska

Typical last frost
May 16

That is the date for the typical Alaska resident, weighted by city population. Across the state the average last frost runs from May 3 to May 16, so look up your own town below.

Earliest city
May 3
Latest city
May 16
Typical first frost
Sep 20
Cities
3
This week in Alaska

Frost in the forecast for 3 of 3 cities

National Weather Service forecast, updated Oct 22, 11:10 UTC

May 1May 15NSAnchorage: May 16AnchorageJuneau: May 3JuneauFairbanks: May 16Fairbanks
Each dot is a city: further right means a later last frost, higher up means further north. Bigger dots are bigger cities.

Frost dates by city

CityLast frostSafe afterFirst frostSeason
AnchorageMay 16Jun 9Sep 20125 days
JuneauMay 3May 18Oct 14164 days
FairbanksMay 16May 29Sep 6112 days

When to plant in Alaska

Questions

When is the last frost in Alaska?

It depends on where you are. Across the 3 cities we track, the average last frost runs from May 3 to May 16. In Anchorage, the largest, it is May 16.

When is the first frost in Alaska?

For a typical resident, around September 20. Higher and more northern towns get it earlier.