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Will it freeze in Grants Pass in the next 7 nights?
No overnight lows at or below 32°F are forecast in Grants Pass during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 36°F. Frost possible.
NWS forecast period: Thu, Nov 5, 6:00 PM PST to Fri, Nov 6, 6:00 AM PST.
2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 36°F Frost possible · Partly Cloudy
- Fri, Nov 6 36°F Frost possible · Partly Cloudy
- Sat, Nov 7 43°F Above 36°F · Light Rain Likely
- Sun, Nov 8 40°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 40°F Above 36°F · Slight Chance Light Rain
- Tue, Nov 10 41°F Above 36°F · Slight Chance Light Rain
- Wed, Nov 11 41°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 Grants Pass
The median first fall hard-freeze date (28°F) is November 16, from NOAA’s 1991–2020 Climate Normals at Grants Pass. 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 14 · May 2 · May 30 | Sep 23 · Oct 11 · Oct 31 | 160 days |
| 32°F freeze | Mar 15 · Apr 8 · May 1 | Oct 8 · Oct 28 · Nov 24 | 201 days |
| 28°F hard freeze | Jan 19 · Mar 8 · Apr 5 | Oct 22 · Nov 16 · Dec 27 | 255 days |
Average high temperature by month
1991–2020 normals at Grants Pass
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 Grants Pass, OR come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Grants Pass (station USC00353445, elevation 932 ft), 0.7 mi from Grants Pass. 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 Grants Pass
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Central Point, OR | 22 mi | Apr 8 | Oct 29 |
| Medford, OR | 25 mi | Apr 8 | Oct 29 |
| Eagle Point, OR | 27 mi | Apr 8 | Oct 29 |
| Talent, OR | 31 mi | May 6 | Oct 8 |
| Ashland, OR | 37 mi | May 6 | Oct 8 |
| Winston, OR | 48 mi | Mar 23 | Nov 18 |
| Roseburg, OR | 55 mi | Mar 23 | Nov 18 |
| Brookings, OR | 56 mi | Jan 31 | Dec 27 |
| Yreka, CA | 61 mi | Apr 30 | Oct 18 |
| Crescent City, CA | 64 mi | Jan 30 | Dec 25 |
Frequently asked questions
When is the last frost in Grants Pass?
On average, the last spring frost (32°F) in Grants Pass is around April 8. In about 1 year in 10 it comes after May 1, and in 9 years in 10 it comes after March 15.
When is the first frost in Grants Pass?
The first fall frost (32°F) usually arrives around October 28. There’s a 10% chance of a freeze by October 8 and a 90% chance by November 24.
Can it frost in Grants Pass 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 May 2.
What growing zone is Grants Pass?
Grants Pass is in USDA Plant Hardiness Zone 8b (average annual extreme minimum temperature 15 to 20°F), based on the 2023 USDA map for ZIP code 97527. See growing zones in Oregon.
More: all Oregon frost dates · Oregon growing zones · UV index today in Grants Pass · frost vs. freeze