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Will it freeze in Seaside in the next 7 nights?
No overnight lows at or below 32°F are forecast in Seaside during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 47°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 47°F Above 36°F · Mostly Cloudy then Chance Light Rain
- Fri, Nov 6 52°F Above 36°F · Light Rain
- Sat, Nov 7 50°F Above 36°F · Light Rain
- Sun, Nov 8 43°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 50°F Above 36°F · Light Rain Likely then Showers And Thunderstorms Likely
- Tue, Nov 10 52°F Above 36°F · Light Rain Likely
- Wed, Nov 11 49°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 Seaside
The median first fall hard-freeze date (28°F) is December 4, from NOAA’s 1991–2020 Climate Normals at Seaside. 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 5 · Apr 29 · May 16 | Sep 30 · Oct 20 · Nov 12 | 176 days |
| 32°F freeze | Mar 4 · Apr 2 · Apr 29 | Oct 18 · Nov 12 · Dec 6 | 223 days |
| 28°F hard freeze | Dec 31 · Feb 27 · Mar 31 | Nov 7 · Dec 4 · Feb 1 | 285 days |
Average high temperature by month
1991–2020 normals at Seaside
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 Seaside, OR come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Seaside (station USC00357641, elevation 10 ft), 0.2 mi from Seaside. 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 Seaside
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Warrenton, OR | 12 mi | Mar 26 | Nov 11 |
| Astoria, OR | 15 mi | Mar 26 | Nov 11 |
| Tillamook, OR | 37 mi | Apr 22 | Oct 21 |
| Longview, WA | 47 mi | Apr 8 | Nov 5 |
| Kelso, WA | 50 mi | Apr 8 | Nov 5 |
| Forest Grove, OR | 50 mi | Apr 16 | Oct 26 |
| Scappoose, OR | 53 mi | Apr 10 | Nov 2 |
| Cornelius, OR | 53 mi | Apr 16 | Oct 26 |
| St. Helens, OR | 54 mi | Apr 18 | Nov 7 |
| Woodland, WA | 57 mi | Apr 18 | Nov 7 |
Frequently asked questions
When is the last frost in Seaside?
On average, the last spring frost (32°F) in Seaside is around April 2. In about 1 year in 10 it comes after April 29, and in 9 years in 10 it comes after March 4.
When is the first frost in Seaside?
The first fall frost (32°F) usually arrives around November 12. There’s a 10% chance of a freeze by October 18 and a 90% chance by December 6.
Can it frost in Seaside 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 29.
What growing zone is Seaside?
Seaside is in USDA Plant Hardiness Zone 9a (average annual extreme minimum temperature 20 to 25°F), based on the 2023 USDA map for ZIP code 97110. See growing zones in Oregon.
More: all Oregon frost dates · Oregon growing zones · frost vs. freeze