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Will it freeze in Altus in the next 7 nights?
No overnight lows at or below 32°F are forecast in Altus during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 42°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 42°F Above 36°F · Mostly Cloudy
- Fri, Nov 6 39°F Above 36°F · Mostly Cloudy
- Sat, Nov 7 41°F Above 36°F · Partly Cloudy
- Sun, Nov 8 42°F Above 36°F · Mostly Clear
- Mon, Nov 9 45°F Above 36°F · Clear
- Tue, Nov 10 48°F Above 36°F · Mostly Clear
- Wed, Nov 11 47°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 Altus
The median first fall hard-freeze date (28°F) is November 10, from NOAA’s 1991–2020 Climate Normals at Altus Irig Rsch Station. 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 2 · Apr 15 · Apr 29 | Oct 10 · Oct 24 · Nov 5 | 191 days |
| 32°F freeze | Mar 20 · Apr 5 · Apr 21 | Oct 19 · Nov 2 · Nov 16 | 210 days |
| 28°F hard freeze | Mar 4 · Mar 24 · Apr 8 | Oct 25 · Nov 10 · Nov 28 | 232 days |
Average high temperature by month
1991–2020 normals at Altus Irig Rsch Station
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 Altus, OK come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Altus Irig Rsch Station (station USC00340179, elevation 1,380 ft), 4.8 mi from Altus. 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 Altus
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Vernon, TX | 35 mi | Mar 27 | Nov 9 |
| Lawton, OK | 50 mi | Mar 26 | Nov 7 |
| Elk City, OK | 51 mi | Apr 5 | Nov 2 |
| Childress, TX | 57 mi | Mar 31 | Nov 7 |
| Burkburnett, TX | 58 mi | Mar 26 | Nov 9 |
| Iowa Park, TX | 60 mi | Mar 26 | Nov 9 |
| Clinton, OK | 62 mi | Apr 13 | Oct 28 |
| Anadarko, OK | 66 mi | Apr 8 | Oct 30 |
| Wichita Falls, TX | 68 mi | Mar 26 | Nov 9 |
| Weatherford, OK | 70 mi | Apr 3 | Nov 3 |
Frequently asked questions
When is the last frost in Altus?
On average, the last spring frost (32°F) in Altus is around April 5. In about 1 year in 10 it comes after April 21, and in 9 years in 10 it comes after March 20.
When is the first frost in Altus?
The first fall frost (32°F) usually arrives around November 2. There’s a 10% chance of a freeze by October 19 and a 90% chance by November 16.
Can it frost in Altus 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 15.
What growing zone is Altus?
Altus is in USDA Plant Hardiness Zone 7b (average annual extreme minimum temperature 5 to 10°F), based on the 2023 USDA map for ZIP code 73523. See growing zones in Oklahoma.
More: all Oklahoma frost dates · Oklahoma growing zones · frost vs. freeze