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Will it freeze in Garden City in the next 7 nights?
No overnight lows at or below 32°F are forecast in Garden City 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 MST to Fri, Nov 6, 6:00 AM MST.
1 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 36°F Frost possible · Mostly Clear
- Fri, Nov 6 37°F Above 36°F · Partly Cloudy
- Sat, Nov 7 43°F Above 36°F · Mostly Clear
- Sun, Nov 8 40°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 42°F Above 36°F · Partly Cloudy
- Tue, Nov 10 44°F Above 36°F · Partly Cloudy
- Wed, Nov 11 45°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 Garden City
The median first fall hard-freeze date (28°F) is October 24, from NOAA’s 1991–2020 Climate Normals at Boise 7 N. 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 18 · Jun 6 · Jun 23 | Sep 13 · Sep 29 · Oct 16 | 114 days |
| 32°F freeze | Apr 27 · May 17 · Jun 10 | Sep 27 · Oct 12 · Oct 30 | 147 days |
| 28°F hard freeze | Apr 7 · Apr 27 · May 19 | Oct 8 · Oct 24 · Nov 11 | 179 days |
Average high temperature by month
1991–2020 normals at Boise 7 N
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 Garden City, ID come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Boise 7 N (station USC00101017, elevation 3,885 ft), 6.6 mi from Garden City. 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 Garden City
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Boise, ID | 5.6 mi | Apr 24 | Oct 21 |
| Eagle, ID | 6.2 mi | Apr 29 | Oct 13 |
| Meridian, ID | 6.8 mi | Apr 24 | Oct 21 |
| Star, ID | 9.9 mi | Apr 29 | Oct 13 |
| Kuna, ID | 11 mi | Apr 24 | Oct 21 |
| Nampa, ID | 15 mi | Apr 29 | Oct 13 |
| Middleton, ID | 16 mi | Apr 29 | Oct 13 |
| Emmett, ID | 17 mi | Apr 30 | Oct 17 |
| Caldwell, ID | 18 mi | Apr 29 | Oct 13 |
| Fruitland, ID | 39 mi | Apr 22 | Oct 9 |
Frequently asked questions
When is the last frost in Garden City?
On average, the last spring frost (32°F) in Garden City is around May 17. In about 1 year in 10 it comes after June 10, and in 9 years in 10 it comes after April 27.
When is the first frost in Garden City?
The first fall frost (32°F) usually arrives around October 12. There’s a 10% chance of a freeze by September 27 and a 90% chance by October 30.
Can it frost in Garden City 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 June 6.
What growing zone is Garden City?
Garden City 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 83703. See growing zones in Idaho.
More: all Idaho frost dates · Idaho growing zones · frost vs. freeze