Checking current alerts… View NWS forecast and alerts.
Will it freeze in Milton-Freewater in the next 7 nights?
No overnight lows at or below 32°F are forecast in Milton-Freewater during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 37°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 37°F Above 36°F · Mostly Clear
- Fri, Nov 6 43°F Above 36°F · Partly Cloudy
- Sat, Nov 7 46°F Above 36°F · Mostly Cloudy then Chance Rain Showers
- Sun, Nov 8 38°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 42°F Above 36°F · Slight Chance Rain Showers
- Tue, Nov 10 46°F Above 36°F · Chance Rain Showers
- Wed, Nov 11 46°F Above 36°F · Slight Chance Rain Showers
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 Milton-Freewater
The median first fall hard-freeze date (28°F) is November 11, from NOAA’s 1991–2020 Climate Normals at Milton Freewater. 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 | Mar 29 · Apr 19 · May 8 | Oct 2 · Oct 17 · Nov 2 | 182 days |
| 32°F freeze | Mar 6 · Mar 25 · Apr 16 | Oct 12 · Oct 29 · Nov 16 | 218 days |
| 28°F hard freeze | Feb 17 · Mar 5 · Mar 28 | Oct 24 · Nov 11 · Dec 1 | 247 days |
Average high temperature by month
1991–2020 normals at Milton Freewater
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 Milton-Freewater, OR come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Milton Freewater (station USC00355593, elevation 970 ft), 1.1 mi from Milton-Freewater. 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 Milton-Freewater
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| College Place, WA | 7.5 mi | May 2 | Oct 1 |
| Walla Walla, WA | 9.3 mi | Mar 27 | Oct 31 |
| Pendleton, OR | 27 mi | Apr 22 | Oct 9 |
| Kennewick, WA | 42 mi | Mar 28 | Oct 30 |
| Pasco, WA | 42 mi | Apr 27 | Oct 11 |
| Hermiston, OR | 43 mi | Apr 26 | Oct 10 |
| La Grande, OR | 45 mi | May 6 | Oct 1 |
| Umatilla, OR | 45 mi | Mar 30 | Nov 4 |
| Richland, WA | 50 mi | Apr 6 | Oct 24 |
| West Richland, WA | 55 mi | Apr 6 | Oct 24 |
Frequently asked questions
When is the last frost in Milton-Freewater?
On average, the last spring frost (32°F) in Milton-Freewater is around March 25. In about 1 year in 10 it comes after April 16, and in 9 years in 10 it comes after March 6.
When is the first frost in Milton-Freewater?
The first fall frost (32°F) usually arrives around October 29. There’s a 10% chance of a freeze by October 12 and a 90% chance by November 16.
Can it frost in Milton-Freewater 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 19.
What growing zone is Milton-Freewater?
Milton-Freewater is in USDA Plant Hardiness Zone 7a (average annual extreme minimum temperature 0 to 5°F), based on the 2023 USDA map for ZIP code 97862. See growing zones in Oregon.
More: all Oregon frost dates · Oregon growing zones · frost vs. freeze