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Will it freeze in Livermore in the next 7 nights?
No overnight lows at or below 32°F are forecast in Livermore during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 48°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 48°F Above 36°F · Mostly Clear
- Fri, Nov 6 47°F Above 36°F · Mostly Clear
- Sat, Nov 7 48°F Above 36°F · Mostly Clear
- Sun, Nov 8 49°F Above 36°F · Partly Cloudy
- Mon, Nov 9 48°F Above 36°F · Mostly Clear
- Tue, Nov 10 50°F Above 36°F · Partly Cloudy then Slight Chance Light Rain
- Wed, Nov 11 49°F Above 36°F · Slight 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 Livermore
The median first fall hard-freeze date (28°F) is December 18, from NOAA’s 1991–2020 Climate Normals at Livermore. 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 | Feb 26 · Mar 25 · Apr 13 | Nov 4 · Nov 18 · Dec 2 | 238 days |
| 32°F freeze | Jan 12 · Feb 15 · Mar 13 | Nov 16 · Dec 2 · Dec 28 | 292 days |
| 28°F hard freeze | Dec 19 · Jan 10 · Feb 10 | Nov 29 · Dec 18 · Jan 17 | 343 days |
Average high temperature by month
1991–2020 normals at Livermore
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 Livermore, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Livermore (station USC00044997, elevation 393 ft), 3.0 mi from Livermore. 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 Livermore
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Pleasanton, CA | 6.8 mi | Feb 15 | Dec 2 |
| Dublin, CA | 7.5 mi | Feb 15 | Dec 2 |
| San Ramon, CA | 11 mi | Mar 8 | Dec 22 |
| Mountain House, CA | 14 mi | Jan 19 | Dec 10 |
| Danville, CA | 14 mi | Mar 8 | Dec 22 |
| Union City, CA | 16 mi | Jan 7 | Dec 22 |
| Fremont, CA | 17 mi | rare | rare |
| Tracy, CA | 17 mi | Feb 25 | Nov 26 |
| Brentwood, CA | 17 mi | Jan 12 | Dec 19 |
| Milpitas, CA | 19 mi | Jan 12 | Dec 22 |
Frequently asked questions
When is the last frost in Livermore?
On average, the last spring frost (32°F) in Livermore is around February 15. In about 1 year in 10 it comes after March 13, and in 9 years in 10 it comes after January 12.
When is the first frost in Livermore?
The first fall frost (32°F) usually arrives around December 2. There’s a 10% chance of a freeze by November 16 and a 90% chance by December 28.
Can it frost in Livermore 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 25.
What growing zone is Livermore?
Livermore 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 94551. See growing zones in California.
More: all California frost dates · California growing zones · UV index today in Livermore · frost vs. freeze