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Will it freeze in Grants in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 32°F (Sat, Nov 7, 6:00 PM MST to Sun, Nov 8, 6:00 AM MST).
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.
7 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 Cloudy
- Fri, Nov 6 34°F Frost possible · Chance Rain Showers then Slight Chance Rain And Snow Showers
- Sat, Nov 7 32°F Freeze · Mostly Clear
- Sun, Nov 8 33°F Frost possible · Mostly Clear
- Mon, Nov 9 35°F Frost possible · Mostly Clear
- Tue, Nov 10 36°F Frost possible · Mostly Clear
- Wed, Nov 11 35°F Frost possible · 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 Grants
The median first fall hard-freeze date (28°F) is October 11, from NOAA’s 1991–2020 Climate Normals at Grants Airport. 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 15 · May 31 · Jun 10 | Sep 13 · Sep 25 · Oct 5 | 118 days |
| 32°F freeze | Apr 30 · May 17 · Jun 1 | Sep 21 · Oct 3 · Oct 14 | 137 days |
| 28°F hard freeze | Apr 21 · May 4 · May 21 | Sep 30 · Oct 11 · Oct 23 | 158 days |
Average high temperature by month
1991–2020 normals at Grants Airport
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 Grants, NM come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Grants Airport (station USC00293682, elevation 6,520 ft), 3.9 mi from Grants. 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 Grants
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Gallup, NM | 57 mi | May 11 | Oct 7 |
| Belen, NM | 64 mi | Apr 23 | Oct 21 |
| Los Lunas, NM | 64 mi | Apr 23 | Oct 21 |
| Rio Rancho, NM | 65 mi | Apr 8 | Nov 1 |
| Los Ranchos de Albuquerque, NM | 67 mi | Apr 23 | Oct 20 |
| Albuquerque, NM | 67 mi | Apr 23 | Oct 20 |
| Corrales, NM | 68 mi | Apr 8 | Nov 1 |
| Bernalillo, NM | 73 mi | Apr 16 | Oct 23 |
| Edgewood, NM | 91 mi | May 9 | Oct 9 |
| Socorro, NM | 93 mi | Apr 16 | Oct 25 |
Frequently asked questions
When is the last frost in Grants?
On average, the last spring frost (32°F) in Grants is around May 17. In about 1 year in 10 it comes after June 1, and in 9 years in 10 it comes after April 30.
When is the first frost in Grants?
The first fall frost (32°F) usually arrives around October 3. There’s a 10% chance of a freeze by September 21 and a 90% chance by October 14.
Can it frost in Grants 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 31.
What growing zone is Grants?
Grants is in USDA Plant Hardiness Zone 6a (average annual extreme minimum temperature −10 to −5°F), based on the 2023 USDA map for ZIP code 87021. See growing zones in New Mexico.
More: all New Mexico frost dates · New Mexico growing zones · frost vs. freeze