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Will it freeze in Grand Junction in the next 7 nights?
No overnight lows at or below 32°F are forecast in Grand Junction during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 40°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 40°F Above 36°F · Areas Of Fog
- Fri, Nov 6 38°F Above 36°F · Mostly Clear
- Sat, Nov 7 39°F Above 36°F · Mostly Clear
- Sun, Nov 8 40°F Above 36°F · Mostly Clear
- Mon, Nov 9 41°F Above 36°F · Partly Cloudy
- Tue, Nov 10 40°F Above 36°F · Partly Cloudy
- Wed, Nov 11 40°F Above 36°F · Mostly Clear
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 Grand Junction
The median first fall hard-freeze date (28°F) is November 2, from NOAA’s 1991–2020 Climate Normals at Grand Junction WFO. 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 12 · Apr 25 · May 9 | Oct 3 · Oct 14 · Oct 26 | 171 days |
| 32°F freeze | Apr 1 · Apr 14 · Apr 28 | Oct 11 · Oct 23 · Nov 6 | 190 days |
| 28°F hard freeze | Mar 12 · Apr 2 · Apr 18 | Oct 19 · Nov 2 · Nov 15 | 212 days |
Average high temperature by month
1991–2020 normals at Grand Junction WFO
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 Grand Junction, CO come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Grand Junction WFO (station USC00053486, elevation 4,826 ft), 3.1 mi from Grand Junction. 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 Grand Junction
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Fruita, CO | 9.9 mi | Apr 27 | Oct 11 |
| Delta, CO | 35 mi | May 1 | Oct 7 |
| Rifle, CO | 53 mi | May 11 | Oct 4 |
| Montrose, CO | 57 mi | Apr 28 | Oct 14 |
| Moab, UT | 64 mi | Apr 11 | Oct 23 |
| Glenwood Springs, CO | 73 mi | May 13 | Oct 3 |
| Carbondale, CO | 75 mi | May 13 | Oct 3 |
| Aspen, CO | 93 mi | Jun 2 | Sep 23 |
| Gypsum, CO | 94 mi | May 1 | Oct 14 |
| Gunnison, CO | 96 mi | Jun 21 | Sep 5 |
Frequently asked questions
When is the last frost in Grand Junction?
On average, the last spring frost (32°F) in Grand Junction is around April 14. In about 1 year in 10 it comes after April 28, and in 9 years in 10 it comes after April 1.
When is the first frost in Grand Junction?
The first fall frost (32°F) usually arrives around October 23. There’s a 10% chance of a freeze by October 11 and a 90% chance by November 6.
Can it frost in Grand Junction 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 25.
What growing zone is Grand Junction?
Grand Junction 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 81501. See growing zones in Colorado.
More: all Colorado frost dates · Colorado growing zones · UV index today in Grand Junction · frost vs. freeze