Checking current alerts… View NWS forecast and alerts.
Will it freeze in Fort Bragg in the next 6 nights?
No overnight lows at or below 32°F are forecast in Fort Bragg during the next 6 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 6 nights.
- Tonight 47°F Above 36°F · Partly Cloudy
- Fri, Nov 6 48°F Above 36°F · Mostly Clear
- Sat, Nov 7 49°F Above 36°F · Patchy Fog
- Sun, Nov 8 49°F Above 36°F · Areas Of Fog
- Mon, Nov 9 49°F Above 36°F · Patchy Fog
- Tue, Nov 10 51°F Above 36°F · Slight Chance Light Rain then Patchy Fog
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 Fort Bragg
The median first fall hard-freeze date (28°F) is December 21, from NOAA’s 1991–2020 Climate Normals at Ft Bragg 5 N. 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 26 · Apr 16 · May 11 | Oct 13 · Nov 6 · Nov 30 | 201 days |
| 32°F freeze | Jan 8 · Mar 2 · Apr 6 | Nov 9 · Dec 1 · Jan 11 | 272 days |
| 28°F hard freeze | Dec 5 · Jan 7 · Feb 21 | Nov 22 · Dec 21 · Feb 4 | 360 days |
Average high temperature by month
1991–2020 normals at Ft Bragg 5 N
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 Fort Bragg, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Ft Bragg 5 N (station USC00043161, elevation 123 ft), 5.3 mi from Fort Bragg. 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 Fort Bragg
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Ukiah, CA | 38 mi | Mar 19 | Nov 20 |
| Lakeport, CA | 55 mi | Mar 5 | Nov 21 |
| Cloverdale, CA | 62 mi | Feb 25 | Dec 3 |
| Clearlake, CA | 71 mi | Apr 10 | Nov 6 |
| Healdsburg, CA | 76 mi | Feb 15 | Dec 2 |
| Fortuna, CA | 81 mi | Feb 1 | Dec 19 |
| Windsor, CA | 82 mi | Mar 2 | Nov 20 |
| Willows, CA | 86 mi | Feb 21 | Dec 6 |
| Orland, CA | 89 mi | Feb 25 | Dec 2 |
| Sebastopol, CA | 89 mi | Mar 20 | Nov 13 |
Frequently asked questions
When is the last frost in Fort Bragg?
On average, the last spring frost (32°F) in Fort Bragg is around March 2. In about 1 year in 10 it comes after April 6, and in 9 years in 10 it comes after January 8.
When is the first frost in Fort Bragg?
The first fall frost (32°F) usually arrives around December 1. There’s a 10% chance of a freeze by November 9 and a 90% chance by January 11.
Can it frost in Fort Bragg 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 16.
What growing zone is Fort Bragg?
Fort Bragg is in USDA Plant Hardiness Zone 9b (average annual extreme minimum temperature 25 to 30°F), based on the 2023 USDA map for ZIP code 95420. See growing zones in California.
More: all California frost dates · California growing zones · frost vs. freeze