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Will it freeze in Newark in the next 7 nights?
No overnight lows at or below 32°F are forecast in Newark during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 49°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 49°F Above 36°F · Mostly Clear
- Fri, Nov 6 49°F Above 36°F · Mostly Clear
- Sat, Nov 7 50°F Above 36°F · Mostly Clear then Patchy Fog
- Sun, Nov 8 52°F Above 36°F · Partly Cloudy
- Mon, Nov 9 51°F Above 36°F · Partly Cloudy then Patchy Fog
- Tue, Nov 10 52°F Above 36°F · Partly Cloudy then Slight Chance Light Rain
- Wed, Nov 11 52°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 Newark
Most years have no 28°F hard freeze at Newark, according to NOAA’s 1991–2020 Climate Normals. Check the short-term forecast above during cold snaps.
| 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 | Dec 24 · Jan 19 · Feb 28 | Nov 27 · Dec 15 · Jan 9 | 329 days |
| 32°F freeze | Dec 16 · Jan 1 · Jan 22 | Dec 9 · Dec 27 · Jan 14 | 365 days |
| 28°F hard freeze | rare in most years | rare in most years | 365 days |
Average high temperature by month
1991–2020 normals at Newark
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 Newark, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Newark (station USC00046144, elevation 10 ft), 0.7 mi from Newark. 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 Newark
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Fremont, CA | 5.0 mi | rare | rare |
| East Palo Alto, CA | 6.2 mi | Feb 1 | Dec 7 |
| Menlo Park, CA | 6.8 mi | Feb 1 | Dec 7 |
| Union City, CA | 6.8 mi | Jan 7 | Dec 22 |
| Mountain View, CA | 7.5 mi | Jan 6 | Dec 23 |
| Sunnyvale, CA | 8.1 mi | Jan 6 | Dec 23 |
| Milpitas, CA | 9.3 mi | Jan 12 | Dec 22 |
| Hayward, CA | 9.3 mi | rare | rare |
| Palo Alto, CA | 9.3 mi | Feb 1 | Dec 7 |
| Atherton, CA | 9.9 mi | Jan 17 | Dec 12 |
Frequently asked questions
When is the last frost in Newark?
Newark doesn’t reach 32°F in a typical year, according to NOAA’s 1991–2020 normals for the nearest station.
When is the first frost in Newark?
Freezes are uncommon here; check the 7-night forecast above during cold snaps.
Can it frost in Newark 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 January 19.
What growing zone is Newark?
Newark is in USDA Plant Hardiness Zone 10a (average annual extreme minimum temperature 30 to 35°F), based on the 2023 USDA map for ZIP code 94560. See growing zones in California.
More: all California frost dates · California growing zones · UV index today in Newark · frost vs. freeze