Frost dates · Washington
When is the first frost in Seattle?
Seattle right now
49°FClear skies
- Today57°F / 50°FClouds
- Tomorrow58°F / 49°FRain
- Monday51°F / 44°FClouds
Cold enough to see your breath, for free.
Live from OpenWeatherMap. Alerts from the National Weather Service.
In a typical year, Seattle’s first frost comes around November 23 and its last around March 2.
One year in ten the first frost comes as early as November 6, and nine years in ten it has arrived by December 15. One year in ten the last frost is over as early as February 5, and nine years in ten it is over by March 23. Seattle averages about 25 nights a year at 32°F or colder, with about 266 frost-free days in between in a typical year. The first frost here usually comes in about 9 days. That makes it the 13th latest first frost of the 117 cities we track where it freezes most years.
Last updated
No freeze in the forecast for the next 48 hours.
Seattle only freezes on about 25 nights a year, which leaves plenty of time for its real hobby, being grey.
Live 48-hour check from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Frost dates, early, typical and late years
| Early year (1 in 10) | Typical | Late year (1 in 10) | |
|---|---|---|---|
| First frost | November 6 | November 23 | December 15 |
| Last frost | February 5 | March 2 | March 23 |
A frost date here is a night when the official thermometer reads 32°F or colder. Frost on the ground can show up on clear, calm nights a few degrees milder.
Cities with about the same first frost
- Norfolk, Virginia: first frost around November 23
- Dallas, Texas: first frost around November 24
- Mobile, Alabama: first frost around November 25
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00024233.