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Will it freeze in Tillamook in the next 7 nights?
No overnight lows at or below 32°F are forecast in Tillamook during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 43°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 43°F Above 36°F · Patchy Fog then Slight Chance Light Rain
- Fri, Nov 6 52°F Above 36°F · Light Rain
- Sat, Nov 7 48°F Above 36°F · Light Rain
- Sun, Nov 8 39°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 48°F Above 36°F · Light Rain Likely
- Tue, Nov 10 50°F Above 36°F · Light Rain Likely
- Wed, Nov 11 46°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 Tillamook
The median first fall hard-freeze date (28°F) is November 15, from NOAA’s 1991–2020 Climate Normals at Tillamook. 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 26 · May 15 · Jun 5 | Sep 7 · Sep 30 · Oct 19 | 135 days |
| 32°F freeze | Mar 28 · Apr 22 · May 13 | Sep 27 · Oct 21 · Nov 15 | 183 days |
| 28°F hard freeze | Feb 22 · Mar 22 · Apr 20 | Oct 21 · Nov 15 · Dec 18 | 236 days |
Average high temperature by month
1991–2020 normals at Tillamook
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 Tillamook, OR come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Tillamook (station USC00358494, elevation 12 ft), 0.9 mi from Tillamook. 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 Tillamook
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Sheridan, OR | 33 mi | Apr 16 | Nov 1 |
| Lincoln City, OR | 34 mi | Apr 4 | Nov 16 |
| Forest Grove, OR | 35 mi | Apr 16 | Oct 26 |
| McMinnville, OR | 35 mi | Apr 5 | Nov 7 |
| Seaside, OR | 37 mi | Apr 2 | Nov 12 |
| Cornelius, OR | 38 mi | Apr 16 | Oct 26 |
| Newberg, OR | 43 mi | Mar 21 | Nov 22 |
| Hillsboro, OR | 43 mi | Apr 16 | Oct 23 |
| Dallas, OR | 45 mi | Apr 16 | Nov 1 |
| Sherwood, OR | 48 mi | Mar 21 | Nov 22 |
Frequently asked questions
When is the last frost in Tillamook?
On average, the last spring frost (32°F) in Tillamook is around April 22. In about 1 year in 10 it comes after May 13, and in 9 years in 10 it comes after March 28.
When is the first frost in Tillamook?
The first fall frost (32°F) usually arrives around October 21. There’s a 10% chance of a freeze by September 27 and a 90% chance by November 15.
Can it frost in Tillamook 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 15.
What growing zone is Tillamook?
Tillamook 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 97141. See growing zones in Oregon.
More: all Oregon frost dates · Oregon growing zones · frost vs. freeze