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Will it freeze in Arlington in the next 7 nights?
No overnight lows at or below 32°F are forecast in Arlington during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 44°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 44°F Above 36°F · Mostly Cloudy then Light Rain Likely
- Fri, Nov 6 48°F Above 36°F · Light Rain
- Sat, Nov 7 46°F Above 36°F · Light Rain
- Sun, Nov 8 37°F Above 36°F · Slight Chance Light Rain then Mostly Cloudy
- Mon, Nov 9 46°F Above 36°F · Light Rain
- Tue, Nov 10 48°F Above 36°F · Light Rain
- Wed, Nov 11 45°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 Arlington
The median first fall hard-freeze date (28°F) is November 3, from NOAA’s 1991–2020 Climate Normals at Arlington. 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 | Apr 28 · May 10 · May 24 | Sep 17 · Oct 2 · Oct 17 | 145 days |
| 32°F freeze | Apr 4 · Apr 22 · May 6 | Oct 3 · Oct 19 · Nov 4 | 181 days |
| 28°F hard freeze | Mar 3 · Mar 25 · Apr 15 | Oct 19 · Nov 3 · Nov 23 | 224 days |
Average high temperature by month
1991–2020 normals at Arlington
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 Arlington, WA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Arlington (station USC00450257, elevation 100 ft), 2.2 mi from Arlington. 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 Arlington
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Marysville, WA | 6.2 mi | Mar 24 | Nov 2 |
| Stanwood, WA | 11 mi | Apr 22 | Oct 19 |
| Lake Stevens, WA | 12 mi | Mar 24 | Nov 2 |
| Everett, WA | 14 mi | Mar 24 | Nov 2 |
| Snohomish, WA | 17 mi | Mar 24 | Nov 2 |
| Mount Vernon, WA | 19 mi | Mar 24 | Nov 3 |
| Mukilteo, WA | 19 mi | Mar 9 | Nov 17 |
| Mill Creek, WA | 21 mi | Mar 9 | Nov 17 |
| Burlington, WA | 22 mi | Mar 24 | Nov 3 |
| Monroe, WA | 23 mi | Apr 17 | Oct 23 |
Frequently asked questions
When is the last frost in Arlington?
On average, the last spring frost (32°F) in Arlington is around April 22. In about 1 year in 10 it comes after May 6, and in 9 years in 10 it comes after April 4.
When is the first frost in Arlington?
The first fall frost (32°F) usually arrives around October 19. There’s a 10% chance of a freeze by October 3 and a 90% chance by November 4.
Can it frost in Arlington 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 May 10.
What growing zone is Arlington?
Arlington 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 98271. See growing zones in Washington.
More: all Washington frost dates · Washington growing zones · frost vs. freeze