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Will it freeze in Emmett in the next 7 nights?
No overnight lows at or below 32°F are forecast in Emmett during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 34°F. Frost possible.
NWS forecast period: Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST.
2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 34°F Frost possible · Mostly Clear
- Fri, Nov 6 36°F Frost possible · Partly Cloudy
- Sat, Nov 7 41°F Above 36°F · Partly Cloudy
- Sun, Nov 8 39°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 40°F Above 36°F · Partly Cloudy
- Tue, Nov 10 42°F Above 36°F · Partly Cloudy
- Wed, Nov 11 42°F Above 36°F · Partly Cloudy
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 Emmett
The median first fall hard-freeze date (28°F) is October 28, from NOAA’s 1991–2020 Climate Normals at Emmett 2 E. 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 | May 1 · May 16 · Jun 5 | Sep 20 · Oct 4 · Oct 18 | 140 days |
| 32°F freeze | Apr 17 · Apr 30 · May 17 | Oct 2 · Oct 17 · Nov 1 | 168 days |
| 28°F hard freeze | Mar 26 · Apr 14 · May 3 | Oct 15 · Oct 28 · Nov 13 | 197 days |
Average high temperature by month
1991–2020 normals at Emmett 2 E
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 Emmett, ID come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Emmett 2 E (station USC00102942, elevation 2,390 ft), 1.6 mi from Emmett. 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 Emmett
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Star, ID | 11 mi | Apr 29 | Oct 13 |
| Eagle, ID | 12 mi | Apr 29 | Oct 13 |
| Middleton, ID | 12 mi | Apr 29 | Oct 13 |
| Garden City, ID | 17 mi | May 17 | Oct 12 |
| Caldwell, ID | 17 mi | Apr 29 | Oct 13 |
| Meridian, ID | 19 mi | Apr 24 | Oct 21 |
| Nampa, ID | 20 mi | Apr 29 | Oct 13 |
| Boise, ID | 23 mi | Apr 24 | Oct 21 |
| Fruitland, ID | 24 mi | Apr 22 | Oct 9 |
| Kuna, ID | 24 mi | Apr 24 | Oct 21 |
Frequently asked questions
When is the last frost in Emmett?
On average, the last spring frost (32°F) in Emmett is around April 30. In about 1 year in 10 it comes after May 17, and in 9 years in 10 it comes after April 17.
When is the first frost in Emmett?
The first fall frost (32°F) usually arrives around October 17. There’s a 10% chance of a freeze by October 2 and a 90% chance by November 1.
Can it frost in Emmett 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 16.
What growing zone is Emmett?
Emmett 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 83617. See growing zones in Idaho.
More: all Idaho frost dates · Idaho growing zones · frost vs. freeze