First and last freeze dates in Ketchikan, AK
The first freeze of fall (a low of 32°F or colder) typically comes around Oct 19, and the last freeze of spring around Apr 27.
This fall so far (data through Oct 16, 2026): no 32°F freeze recorded yet at this station. Observed data, can lag a day or two.
Oct 19Median first fall freeze (≤32°F)
Apr 27Median last spring freeze (≤32°F)
181Median freeze-free days between
First and last freeze dates in Ketchikan
| Threshold | Event | Median date | Typical range (10th–90th pct) | Earliest / latest | Years with one |
|---|---|---|---|---|---|
| 32°F or colder (freeze) | First in fall | Oct 19 | Oct 2 – Nov 4 | Sep 23 (2003) / Nov 17 (2015) | 100% |
| 32°F or colder (freeze) | Last in spring | Apr 27 | Apr 13 – May 14 | – | 100% |
| 28°F or colder (hard freeze) | First in fall | Nov 11 | Oct 17 – Nov 29 | Oct 10 (1997) / Dec 13 (2008) | 97% |
| 28°F or colder (hard freeze) | Last in spring | Mar 27 | Mar 8 – Apr 27 | – | 100% |
Based on the station’s daily minimum temperature, 1995–2024. “Freeze” here means a daily low at or below the threshold, which is not the same as visible frost. Your yard can differ by several degrees and days from an airport weather station, so use these as planning odds, not guarantees.
The median stretch between the last spring freeze and the first fall freeze (the freeze-free season) was about 181 days.
Nearby weather stations
Source station: Ketchikan Ap (USW00025325), elevation 84 ft. Data: NOAA NCEI GHCN-Daily. Computed by First Snow Dates; how we calculate this. Historical averages only; for a forecast see weather.gov.
Planning for winter? Heat pump vs gas furnace, propane and oil: heating cost in Alaska (on our sister site PlugVsPump, from EIA prices).