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Will it freeze in Chubbuck in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 31°F (Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST).
Tonight: forecast low 31°F. Freeze.
NWS forecast period: Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST.
4 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 31°F Freeze · Areas Of Fog
- Fri, Nov 6 30°F Freeze · Partly Cloudy
- Sat, Nov 7 33°F Frost possible · Mostly Clear
- Sun, Nov 8 36°F Frost possible · Partly Cloudy
- Mon, Nov 9 38°F Above 36°F · Partly Cloudy
- Tue, Nov 10 37°F Above 36°F · Mostly Clear
- Wed, Nov 11 38°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 Chubbuck
The median first fall hard-freeze date (28°F) is October 13, from NOAA’s 1991–2020 Climate Normals at Pocatello 2 NE. 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 17 · Jun 5 · Jun 18 | Sep 5 · Sep 21 · Oct 4 | 108 days |
| 32°F freeze | Apr 30 · May 16 · Jun 6 | Sep 14 · Oct 2 · Oct 18 | 137 days |
| 28°F hard freeze | Apr 16 · May 1 · May 18 | Sep 26 · Oct 13 · Oct 29 | 165 days |
Average high temperature by month
1991–2020 normals at Pocatello 2 NE
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 Chubbuck, ID come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Pocatello 2 NE (station USC00107208, elevation 4,832 ft), 3.5 mi from Chubbuck. 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 Chubbuck
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Pocatello, ID | 3.7 mi | May 2 | Oct 11 |
| Blackfoot, ID | 19 mi | May 5 | Oct 3 |
| Shelley, ID | 35 mi | May 23 | Sep 20 |
| Idaho Falls, ID | 44 mi | May 9 | Oct 1 |
| Ammon, ID | 45 mi | May 9 | Oct 1 |
| Rigby, ID | 58 mi | May 9 | Oct 5 |
| Preston, ID | 65 mi | May 16 | Sep 28 |
| Rupert, ID | 65 mi | May 6 | Oct 6 |
| Rexburg, ID | 70 mi | May 12 | Sep 24 |
| Burley, ID | 73 mi | May 7 | Oct 4 |
Frequently asked questions
When is the last frost in Chubbuck?
On average, the last spring frost (32°F) in Chubbuck is around May 16. In about 1 year in 10 it comes after June 6, and in 9 years in 10 it comes after April 30.
When is the first frost in Chubbuck?
The first fall frost (32°F) usually arrives around October 2. There’s a 10% chance of a freeze by September 14 and a 90% chance by October 18.
Can it frost in Chubbuck 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 5.
What growing zone is Chubbuck?
Chubbuck is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 83201. See growing zones in Idaho.
More: all Idaho frost dates · Idaho growing zones · frost vs. freeze