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Will it freeze in Ulysses in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 31°F (Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST).
Tonight: forecast low 31°F. Freeze.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
3 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 31°F Freeze · Mostly Clear
- Fri, Nov 6 34°F Frost possible · Mostly Cloudy
- Sat, Nov 7 36°F Frost possible · Clear
- Sun, Nov 8 38°F Above 36°F · Clear
- Mon, Nov 9 40°F Above 36°F · Mostly Clear
- Tue, Nov 10 42°F Above 36°F · Mostly Clear
- Wed, Nov 11 41°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 Ulysses
The median first fall hard-freeze date (28°F) is October 24, from NOAA’s 1991–2020 Climate Normals at Ulysses 3NE. 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 24 · May 6 · May 19 | Sep 24 · Oct 6 · Oct 19 | 152 days |
| 32°F freeze | Apr 12 · Apr 28 · May 10 | Oct 2 · Oct 16 · Oct 27 | 171 days |
| 28°F hard freeze | Apr 2 · Apr 16 · May 1 | Oct 11 · Oct 24 · Nov 5 | 189 days |
Average high temperature by month
1991–2020 normals at Ulysses 3NE
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 Ulysses, KS come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Ulysses 3NE (station USC00148287, elevation 3,094 ft), 3.8 mi from Ulysses. 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 Ulysses
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Garden City, KS | 39 mi | Apr 28 | Oct 17 |
| Liberal, KS | 43 mi | Apr 20 | Oct 24 |
| Guymon, OK | 62 mi | Apr 18 | Oct 23 |
| Dodge City, KS | 74 mi | Apr 21 | Oct 20 |
| Lamar, CO | 77 mi | Apr 30 | Oct 10 |
| Perryton, TX | 88 mi | Apr 14 | Oct 30 |
| La Junta, CO | 123 mi | Apr 26 | Oct 15 |
| Dalhart, TX | 123 mi | Apr 28 | Oct 20 |
| Dumas, TX | 123 mi | Apr 21 | Oct 24 |
| Colby, KS | 126 mi | May 2 | Oct 9 |
Frequently asked questions
When is the last frost in Ulysses?
On average, the last spring frost (32°F) in Ulysses is around April 28. In about 1 year in 10 it comes after May 10, and in 9 years in 10 it comes after April 12.
When is the first frost in Ulysses?
The first fall frost (32°F) usually arrives around October 16. There’s a 10% chance of a freeze by October 2 and a 90% chance by October 27.
Can it frost in Ulysses 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 Ulysses?
Ulysses is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 67880. See growing zones in Kansas.
More: all Kansas frost dates · Kansas growing zones · frost vs. freeze