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Will it freeze in Scotts Valley in the next 7 nights?
No overnight lows at or below 32°F are forecast in Scotts Valley 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 Clear
- Fri, Nov 6 48°F Above 36°F · Mostly Clear
- Sat, Nov 7 46°F Above 36°F · Mostly Clear
- Sun, Nov 8 48°F Above 36°F · Partly Cloudy
- Mon, Nov 9 48°F Above 36°F · Mostly Clear then Patchy Fog
- Tue, Nov 10 49°F Above 36°F · Mostly Clear then Slight Chance Light Rain
- Wed, Nov 11 48°F Above 36°F · Chance Light Rain
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 Scotts Valley
The median first fall hard-freeze date (28°F) is December 4, from NOAA’s 1991–2020 Climate Normals at Ben Lomond #4. 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 6 · Apr 28 · May 19 | Oct 1 · Oct 21 · Nov 11 | 179 days |
| 32°F freeze | Feb 17 · Mar 25 · Apr 21 | Oct 18 · Nov 11 · Dec 4 | 231 days |
| 28°F hard freeze | Dec 26 · Feb 6 · Mar 9 | Nov 11 · Dec 4 · Jan 7 | 302 days |
Average high temperature by month
1991–2020 normals at Ben Lomond #4
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 Scotts Valley, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Ben Lomond #4 (station USC00040673, elevation 420 ft), 4.3 mi from Scotts Valley. 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 Scotts Valley
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Santa Cruz, CA | 5.6 mi | Jan 29 | Dec 13 |
| Capitola, CA | 6.2 mi | Jan 29 | Dec 13 |
| Los Gatos, CA | 12 mi | Feb 2 | Dec 6 |
| Saratoga, CA | 15 mi | Feb 2 | Dec 6 |
| Campbell, CA | 16 mi | Feb 2 | Dec 6 |
| Watsonville, CA | 16 mi | Jan 28 | Dec 13 |
| Cupertino, CA | 18 mi | Jan 6 | Dec 23 |
| San Jose, CA | 20 mi | Jan 2 | Dec 25 |
| Morgan Hill, CA | 21 mi | Feb 24 | Nov 27 |
| Santa Clara, CA | 22 mi | Jan 12 | Dec 22 |
Frequently asked questions
When is the last frost in Scotts Valley?
On average, the last spring frost (32°F) in Scotts Valley is around March 25. In about 1 year in 10 it comes after April 21, and in 9 years in 10 it comes after February 17.
When is the first frost in Scotts Valley?
The first fall frost (32°F) usually arrives around November 11. There’s a 10% chance of a freeze by October 18 and a 90% chance by December 4.
Can it frost in Scotts Valley 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 28.
What growing zone is Scotts Valley?
Scotts Valley 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 95066. See growing zones in California.
More: all California frost dates · California growing zones · frost vs. freeze