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Will it freeze in Anacortes in the next 7 nights?
No overnight lows at or below 32°F are forecast in Anacortes during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 46°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM PST to Fri, Nov 6, 6:00 AM PST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 46°F Above 36°F · Light Rain
- Fri, Nov 6 49°F Above 36°F · Chance Light Rain
- Sat, Nov 7 47°F Above 36°F · Light Rain
- Sun, Nov 8 39°F Above 36°F · Partly Cloudy
- Mon, Nov 9 47°F Above 36°F · Light Rain
- Tue, Nov 10 49°F Above 36°F · Light Rain Likely
- Wed, Nov 11 48°F Above 36°F · Light Rain Likely
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Anacortes
The median first fall hard-freeze date (28°F) is December 5, from NOAA’s 1991–2020 Climate Normals at Anacortes. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | Mar 15 · Apr 1 · Apr 21 | Oct 17 · Nov 2 · Nov 22 | 214 days |
| 32°F freeze | Feb 17 · Mar 8 · Mar 28 | Nov 1 · Nov 20 · Dec 11 | 255 days |
| 28°F hard freeze | Jan 5 · Feb 15 · Mar 5 | Nov 13 · Dec 5 · Jan 9 | 304 days |
Average high temperature by month
1991–2020 normals at Anacortes
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Anacortes, WA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Anacortes (station USC00450176, elevation 20 ft), 1.7 mi from Anacortes. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Anacortes
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Oak Harbor, WA | 14 mi | Mar 13 | Nov 14 |
| Burlington, WA | 14 mi | Mar 24 | Nov 3 |
| Mount Vernon, WA | 15 mi | Mar 24 | Nov 3 |
| Sedro-Woolley, WA | 18 mi | Mar 27 | Nov 6 |
| Bellingham, WA | 20 mi | Apr 1 | Nov 2 |
| Stanwood, WA | 21 mi | Apr 22 | Oct 19 |
| Ferndale, WA | 25 mi | Mar 31 | Oct 30 |
| Port Townsend, WA | 27 mi | Mar 1 | Nov 28 |
| Arlington, WA | 31 mi | Apr 22 | Oct 19 |
| Lynden, WA | 33 mi | Apr 18 | Oct 18 |
Frequently asked questions
When is the last frost in Anacortes?
On average, the last spring frost (32°F) in Anacortes is around March 8. In about 1 year in 10 it comes after March 28, and in 9 years in 10 it comes after February 17.
When is the first frost in Anacortes?
The first fall frost (32°F) usually arrives around November 20. There’s a 10% chance of a freeze by November 1 and a 90% chance by December 11.
Can it frost in Anacortes after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after April 1.
What growing zone is Anacortes?
Anacortes is in USDA Plant Hardiness Zone 8b (average annual extreme minimum temperature 15 to 20°F), based on the 2023 USDA map for ZIP code 98221. See growing zones in Washington.
More: all Washington frost dates · Washington growing zones · frost vs. freeze