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Will it freeze in Port Townsend in the next 7 nights?
No overnight lows at or below 32°F are forecast in Port Townsend during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 45°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 45°F Above 36°F · Light Rain
- Fri, Nov 6 47°F Above 36°F · Chance Light Rain
- Sat, Nov 7 46°F Above 36°F · Light Rain
- Sun, Nov 8 42°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 47°F Above 36°F · Light Rain
- Tue, Nov 10 50°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 Port Townsend
The median first fall hard-freeze date (28°F) is December 19, from NOAA’s 1991–2020 Climate Normals at Port Townsend. 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 10 · Mar 31 · Apr 26 | Oct 19 · Nov 9 · Nov 26 | 221 days |
| 32°F freeze | Feb 3 · Mar 1 · Mar 23 | Nov 9 · Nov 28 · Dec 26 | 274 days |
| 28°F hard freeze | Dec 14 · Feb 1 · Mar 3 | Nov 20 · Dec 19 · Feb 6 | 324 days |
Average high temperature by month
1991–2020 normals at Port Townsend
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 Port Townsend, WA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Port Townsend (station USC00456678, elevation 100 ft), 1.4 mi from Port Townsend. 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 Port Townsend
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Oak Harbor, WA | 14 mi | Mar 13 | Nov 14 |
| Sequim, WA | 14 mi | Apr 21 | Oct 20 |
| Stanwood, WA | 22 mi | Apr 22 | Oct 19 |
| Anacortes, WA | 27 mi | Mar 8 | Nov 20 |
| Mukilteo, WA | 27 mi | Mar 9 | Nov 17 |
| Poulsbo, WA | 27 mi | Mar 29 | Nov 14 |
| Edmonds, WA | 29 mi | Mar 9 | Nov 17 |
| Marysville, WA | 29 mi | Mar 24 | Nov 2 |
| Everett, WA | 30 mi | Mar 24 | Nov 2 |
| Arlington, WA | 30 mi | Apr 22 | Oct 19 |
Frequently asked questions
When is the last frost in Port Townsend?
On average, the last spring frost (32°F) in Port Townsend is around March 1. In about 1 year in 10 it comes after March 23, and in 9 years in 10 it comes after February 3.
When is the first frost in Port Townsend?
The first fall frost (32°F) usually arrives around November 28. There’s a 10% chance of a freeze by November 9 and a 90% chance by December 26.
Can it frost in Port Townsend 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 March 31.
What growing zone is Port Townsend?
Port Townsend 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 98368. See growing zones in Washington.
More: all Washington frost dates · Washington growing zones · frost vs. freeze