Last spring frost
Apr 19
Frost Dates for Kake, AK
First fall frost
Oct 25
Growing season
187 days
In an average year around Kake, AK, the last spring frost (32°F) is about Apr 19 and the first fall frost is about Oct 25, giving roughly a 187-day growing season. To be safe most years, wait until Apr 4 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | May 25 | May 9 | Apr 25 |
| Freeze (32°F) | May 5 | Apr 19 | Apr 4 |
| Hard (28°F) | Apr 22 | Apr 3 | Mar 14 |
| Severe (24°F) | Apr 12 | Mar 23 | Feb 21 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 25 | May 20 | May 16 | May 13 | May 9 | May 6 | May 3 | Apr 30 | Apr 25 |
| 32°F | May 5 | May 1 | Apr 27 | Apr 23 | Apr 19 | Apr 16 | Apr 13 | Apr 9 | Apr 4 |
| 28°F | Apr 22 | Apr 15 | Apr 10 | Apr 6 | Apr 3 | Mar 31 | Mar 27 | Mar 22 | Mar 14 |
| 24°F | Apr 12 | Apr 7 | Apr 3 | Mar 30 | Mar 23 | Mar 19 | Mar 12 | Mar 6 | Feb 21 |
| 20°F | Apr 3 | Mar 28 | Mar 22 | Mar 16 | Mar 9 | Mar 2 | Feb 21 | Feb 6 | Jan 24 |
| 16°F | Mar 23 | Mar 13 | Mar 4 | Feb 24 | Feb 12 | Feb 2 | Jan 24 | Jan 14 | Dec 31 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Sep 25 | Oct 10 | Oct 24 |
| Freeze (32°F) | Oct 5 | Oct 25 | Nov 11 |
| Hard (28°F) | Oct 19 | Nov 8 | Dec 2 |
| Severe (24°F) | Nov 2 | Nov 26 | Dec 30 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 25 | Oct 1 | Oct 3 | Oct 7 | Oct 10 | Oct 13 | Oct 16 | Oct 19 | Oct 24 |
| 32°F | Oct 5 | Oct 13 | Oct 18 | Oct 21 | Oct 25 | Oct 27 | Oct 31 | Nov 4 | Nov 11 |
| 28°F | Oct 19 | Oct 27 | Nov 1 | Nov 4 | Nov 8 | Nov 13 | Nov 18 | Nov 24 | Dec 2 |
| 24°F | Nov 2 | Nov 10 | Nov 16 | Nov 22 | Nov 26 | Dec 1 | Dec 7 | Dec 15 | Dec 30 |
| 20°F | Nov 18 | Nov 25 | Dec 1 | Dec 6 | Dec 13 | Dec 21 | Dec 30 | Jan 6 | Jan 20 |
| 16°F | Nov 29 | Dec 5 | Dec 16 | Dec 25 | Dec 31 | Jan 7 | Jan 16 | Jan 26 | Feb 17 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Pt Baker, Ak, about 34 miles away@if(!empty($station['elevation_ft'])), at 20 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Kake, AK?
On average, the last spring frost (32°F) around Kake, AK is about Apr 19. In cooler years it can run later, so for a safer bet many gardeners wait until Apr 4.
When is the first frost in the fall?
The first fall frost around Kake, AK typically arrives about Oct 25. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Apr 19 on average, or Apr 4 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 187 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 99830 Planting calendar → Alaska frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026