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Will it freeze in Wasco in the next 7 nights?
No overnight lows at or below 32°F are forecast in Wasco during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 45°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 45°F Above 36°F · Mostly Clear
- Fri, Nov 6 45°F Above 36°F · Mostly Clear
- Sat, Nov 7 46°F Above 36°F · Clear
- Sun, Nov 8 47°F Above 36°F · Mostly Clear
- Mon, Nov 9 47°F Above 36°F · Partly Cloudy
- Tue, Nov 10 48°F Above 36°F · Mostly Clear
- Wed, Nov 11 50°F Above 36°F · Mostly Clear then 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 Wasco
The median first fall hard-freeze date (28°F) is December 16, from NOAA’s 1991–2020 Climate Normals at Wasco. 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 | Jan 30 · Feb 26 · Mar 25 | Nov 9 · Nov 24 · Dec 10 | 271 days |
| 32°F freeze | Jan 2 · Jan 31 · Feb 27 | Nov 21 · Dec 5 · Jan 2 | 315 days |
| 28°F hard freeze | Dec 8 · Jan 4 · Feb 4 | Nov 29 · Dec 16 · Jan 16 | 352 days |
Average high temperature by month
1991–2020 normals at Wasco
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 Wasco, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Wasco (station USC00049452, elevation 291 ft), 0.9 mi from Wasco. 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 Wasco
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| McFarland, CA | 9.3 mi | Jan 31 | Dec 8 |
| Shafter, CA | 12 mi | Feb 20 | Nov 23 |
| Delano, CA | 13 mi | Jan 31 | Dec 8 |
| Bakersfield, CA | 25 mi | Jan 31 | Dec 8 |
| Taft, CA | 32 mi | Jan 24 | Dec 17 |
| Corcoran, CA | 35 mi | Feb 15 | Nov 27 |
| Porterville, CA | 37 mi | Jan 20 | Dec 13 |
| Arvin, CA | 41 mi | Jan 31 | Dec 8 |
| Tulare, CA | 42 mi | Jan 23 | Dec 13 |
| Lindsay, CA | 45 mi | Feb 20 | Nov 30 |
Frequently asked questions
When is the last frost in Wasco?
On average, the last spring frost (32°F) in Wasco is around January 31. In about 1 year in 10 it comes after February 27, and in 9 years in 10 it comes after January 2.
When is the first frost in Wasco?
The first fall frost (32°F) usually arrives around December 5. There’s a 10% chance of a freeze by November 21 and a 90% chance by January 2.
Can it frost in Wasco 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 February 26.
What growing zone is Wasco?
Wasco 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 93280. See growing zones in California.
More: all California frost dates · California growing zones · UV index today in Wasco · frost vs. freeze