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Will it freeze in Stillwater in the next 7 nights?
No overnight lows at or below 32°F are forecast in Stillwater during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 41°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 41°F Above 36°F · Chance Rain Showers then Partly Cloudy
- Fri, Nov 6 38°F Above 36°F · Mostly Cloudy
- Sat, Nov 7 38°F Above 36°F · Mostly Clear
- Sun, Nov 8 40°F Above 36°F · Clear
- Mon, Nov 9 45°F Above 36°F · Mostly 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 Stillwater
The median first fall hard-freeze date (28°F) is November 9, from NOAA’s 1991–2020 Climate Normals at Stillwater 2 W. 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 1 · Apr 17 · May 2 | Oct 6 · Oct 22 · Nov 3 | 185 days |
| 32°F freeze | Mar 21 · Apr 5 · Apr 21 | Oct 16 · Oct 30 · Nov 15 | 206 days |
| 28°F hard freeze | Mar 6 · Mar 27 · Apr 10 | Oct 24 · Nov 9 · Nov 25 | 227 days |
Average high temperature by month
1991–2020 normals at Stillwater 2 W
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 Stillwater, OK come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Stillwater 2 W (station USW00053926, elevation 890 ft), 1.3 mi from Stillwater. 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 Stillwater
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Cushing, OK | 21 mi | Apr 1 | Nov 5 |
| Guthrie, OK | 25 mi | Apr 3 | Nov 1 |
| Edmond, OK | 37 mi | Apr 10 | Oct 28 |
| Ponca City, OK | 40 mi | Apr 10 | Oct 27 |
| Harrah, OK | 46 mi | Apr 2 | Nov 5 |
| Choctaw, OK | 46 mi | Apr 2 | Nov 5 |
| The Village, OK | 47 mi | Apr 2 | Nov 4 |
| Blackwell, OK | 48 mi | Apr 12 | Oct 29 |
| Enid, OK | 48 mi | Apr 6 | Nov 1 |
| Piedmont, OK | 49 mi | Apr 2 | Nov 4 |
Frequently asked questions
When is the last frost in Stillwater?
On average, the last spring frost (32°F) in Stillwater 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 21.
When is the first frost in Stillwater?
The first fall frost (32°F) usually arrives around October 30. There’s a 10% chance of a freeze by October 16 and a 90% chance by November 15.
Can it frost in Stillwater 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 17.
What growing zone is Stillwater?
Stillwater is in USDA Plant Hardiness Zone 7a (average annual extreme minimum temperature 0 to 5°F), based on the 2023 USDA map for ZIP code 74078. See growing zones in Oklahoma.
More: all Oklahoma frost dates · Oklahoma growing zones · UV index today in Stillwater · frost vs. freeze