Checking current alerts… View NWS forecast and alerts.
Will it freeze in La Junta in the next 7 nights?
No overnight lows at or below 32°F are forecast in La Junta during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 35°F. Frost possible.
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 35°F Frost possible · Partly Cloudy
- Fri, Nov 6 36°F Frost possible · Mostly Cloudy
- Sat, Nov 7 35°F Frost possible · Mostly Clear
- Sun, Nov 8 36°F Frost possible · Clear
- Mon, Nov 9 37°F Above 36°F · Mostly Clear
- Tue, Nov 10 39°F Above 36°F · Partly Cloudy
- 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 La Junta
The median first fall hard-freeze date (28°F) is October 24, from NOAA’s 1991–2020 Climate Normals at La Junta. 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 23 · May 6 · May 19 | Sep 26 · Oct 7 · Oct 18 | 153 days |
| 32°F freeze | Apr 10 · Apr 26 · May 9 | Oct 3 · Oct 15 · Oct 26 | 171 days |
| 28°F hard freeze | Mar 31 · Apr 15 · Apr 29 | Oct 11 · Oct 24 · Nov 5 | 191 days |
Average high temperature by month
1991–2020 normals at La Junta
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 La Junta, CO come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: La Junta (station USC00054724, elevation 4,089 ft), 0.2 mi from La Junta. 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 La Junta
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Lamar, CO | 51 mi | Apr 30 | Oct 10 |
| Pueblo, CO | 61 mi | Apr 30 | Oct 9 |
| Trinidad, CO | 76 mi | Apr 30 | Oct 15 |
| Fountain, CO | 78 mi | May 3 | Oct 8 |
| Colorado Springs, CO | 90 mi | May 3 | Oct 8 |
| Raton, NM | 90 mi | May 19 | Sep 29 |
| Cañon City, CO | 96 mi | May 4 | Oct 7 |
| Monument, CO | 103 mi | May 17 | Oct 1 |
| Woodland Park, CO | 108 mi | Jun 1 | Sep 21 |
| Castle Rock, CO | 119 mi | May 9 | Oct 2 |
Frequently asked questions
When is the last frost in La Junta?
On average, the last spring frost (32°F) in La Junta is around April 26. In about 1 year in 10 it comes after May 9, and in 9 years in 10 it comes after April 10.
When is the first frost in La Junta?
The first fall frost (32°F) usually arrives around October 15. There’s a 10% chance of a freeze by October 3 and a 90% chance by October 26.
Can it frost in La Junta 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 6.
What growing zone is La Junta?
La Junta 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 81077. See growing zones in Colorado.
More: all Colorado frost dates · Colorado growing zones · frost vs. freeze