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Will it freeze in Gypsum in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 27°F (Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST).
Tonight: forecast low 27°F. Hard freeze.
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 27°F Hard freeze · Mostly Cloudy
- Fri, Nov 6 26°F Hard freeze · Mostly Clear
- Sat, Nov 7 27°F Hard freeze · Mostly Clear
- Sun, Nov 8 29°F Freeze · Clear
- Mon, Nov 9 31°F Freeze · Mostly Clear
- Tue, Nov 10 30°F Freeze · Partly Cloudy
- Wed, Nov 11 30°F Freeze · 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 Gypsum
The median first fall hard-freeze date (28°F) is October 23, from NOAA’s 1991–2020 Climate Normals at Shoshone. 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 1 · May 14 · Jun 1 | Sep 25 · Oct 6 · Oct 17 | 143 days |
| 32°F freeze | Apr 19 · May 1 · May 14 | Oct 1 · Oct 14 · Oct 27 | 164 days |
| 28°F hard freeze | Apr 6 · Apr 21 · May 4 | Oct 11 · Oct 23 · Nov 6 | 184 days |
Average high temperature by month
1991–2020 normals at Shoshone
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 Gypsum, CO come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Shoshone (station USC00057618, elevation 5,992 ft), 15 mi from Gypsum. 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 Gypsum
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Eagle, CO | 7.5 mi | May 1 | Oct 14 |
| Carbondale, CO | 21 mi | May 13 | Oct 3 |
| Glenwood Springs, CO | 21 mi | May 13 | Oct 3 |
| Avon, CO | 24 mi | Jun 21 | Sep 7 |
| Aspen, CO | 30 mi | Jun 2 | Sep 23 |
| Rifle, CO | 43 mi | May 11 | Oct 4 |
| Silverthorne, CO | 46 mi | Jun 21 | Sep 7 |
| Breckenridge, CO | 49 mi | Jun 21 | Sep 7 |
| Steamboat Springs, CO | 60 mi | Jun 9 | Sep 12 |
| Craig, CO | 70 mi | Jun 6 | Sep 12 |
Frequently asked questions
When is the last frost in Gypsum?
On average, the last spring frost (32°F) in Gypsum is around May 1. In about 1 year in 10 it comes after May 14, and in 9 years in 10 it comes after April 19.
When is the first frost in Gypsum?
The first fall frost (32°F) usually arrives around October 14. There’s a 10% chance of a freeze by October 1 and a 90% chance by October 27.
Can it frost in Gypsum 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 14.
What growing zone is Gypsum?
Gypsum is in USDA Plant Hardiness Zone 5b (average annual extreme minimum temperature −15 to −10°F), based on the 2023 USDA map for ZIP code 81631. See growing zones in Colorado.
More: all Colorado frost dates · Colorado growing zones · frost vs. freeze