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Will it freeze in Sandy in the next 7 nights?
No overnight lows at or below 32°F are forecast in Sandy during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 42°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 42°F Above 36°F · Partly Cloudy
- Fri, Nov 6 47°F Above 36°F · Chance Light Rain
- Sat, Nov 7 48°F Above 36°F · Light Rain
- Sun, Nov 8 42°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 47°F Above 36°F · Light Rain Likely
- Tue, Nov 10 49°F Above 36°F · Chance Light Rain
- Wed, Nov 11 45°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 Sandy
The median first fall hard-freeze date (28°F) is December 9, from NOAA’s 1991–2020 Climate Normals at Headworks Portland Wtr B. 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 7 · Apr 26 · May 12 | Oct 12 · Oct 29 · Nov 18 | 186 days |
| 32°F freeze | Feb 26 · Mar 27 · Apr 20 | Oct 26 · Nov 18 · Dec 10 | 239 days |
| 28°F hard freeze | Jan 2 · Feb 14 · Mar 12 | Nov 12 · Dec 9 · Jan 19 | 303 days |
Average high temperature by month
1991–2020 normals at Headworks Portland Wtr B
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 Sandy, OR come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Headworks Portland Wtr B (station USC00353770, elevation 748 ft), 6.5 mi from Sandy. 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 Sandy
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Estacada, OR | 7.5 mi | Mar 27 | Nov 14 |
| Gresham, OR | 11 mi | Mar 16 | Nov 20 |
| Troutdale, OR | 11 mi | Mar 26 | Nov 17 |
| Happy Valley, OR | 12 mi | Mar 18 | Nov 18 |
| Fairview, OR | 13 mi | Mar 16 | Nov 20 |
| Washougal, WA | 13 mi | Mar 26 | Nov 17 |
| Gladstone, OR | 16 mi | Mar 18 | Nov 18 |
| Camas, WA | 16 mi | Mar 16 | Nov 20 |
| Oregon City, OR | 16 mi | Mar 18 | Nov 18 |
| Milwaukie, OR | 17 mi | Feb 25 | Dec 1 |
Frequently asked questions
When is the last frost in Sandy?
On average, the last spring frost (32°F) in Sandy is around March 27. In about 1 year in 10 it comes after April 20, and in 9 years in 10 it comes after February 26.
When is the first frost in Sandy?
The first fall frost (32°F) usually arrives around November 18. There’s a 10% chance of a freeze by October 26 and a 90% chance by December 10.
Can it frost in Sandy 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 26.
What growing zone is Sandy?
Sandy 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 97009. See growing zones in Oregon.
More: all Oregon frost dates · Oregon growing zones · frost vs. freeze