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Will it freeze in Harrah in the next 7 nights?
No overnight lows at or below 32°F are forecast in Harrah during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 44°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 44°F Above 36°F · Chance Rain Showers then Mostly Cloudy
- Fri, Nov 6 40°F Above 36°F · Mostly Cloudy
- Sat, Nov 7 40°F Above 36°F · Partly Cloudy
- Sun, Nov 8 43°F Above 36°F · Mostly Clear
- Mon, Nov 9 47°F Above 36°F · Mostly Clear
- Tue, Nov 10 51°F Above 36°F · Mostly Clear
- Wed, Nov 11 49°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 Harrah
The median first fall hard-freeze date (28°F) is November 13, from NOAA’s 1991–2020 Climate Normals at Spencer 2ENE Mesonet. 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 | Mar 26 · Apr 12 · Apr 28 | Oct 14 · Oct 28 · Nov 10 | 197 days |
| 32°F freeze | Mar 12 · Apr 2 · Apr 18 | Oct 20 · Nov 5 · Nov 20 | 217 days |
| 28°F hard freeze | Feb 28 · Mar 17 · Apr 6 | Oct 30 · Nov 13 · Dec 1 | 239 days |
Average high temperature by month
1991–2020 normals at Spencer 2ENE Mesonet
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 Harrah, OK come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Spencer 2ENE Mesonet (station USC00348390, elevation 1,223 ft), 10 mi from Harrah. 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 Harrah
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Choctaw, OK | 5.0 mi | Apr 2 | Nov 5 |
| Midwest City, OK | 11 mi | Apr 2 | Nov 5 |
| Shawnee, OK | 14 mi | Mar 30 | Nov 5 |
| Del City, OK | 15 mi | Apr 2 | Nov 5 |
| Norman, OK | 19 mi | Apr 3 | Nov 3 |
| Oklahoma City, OK | 19 mi | Apr 4 | Nov 2 |
| Edmond, OK | 19 mi | Apr 10 | Oct 28 |
| Moore, OK | 19 mi | Mar 31 | Nov 5 |
| Tecumseh, OK | 20 mi | Mar 30 | Nov 5 |
| The Village, OK | 22 mi | Apr 2 | Nov 4 |
Frequently asked questions
When is the last frost in Harrah?
On average, the last spring frost (32°F) in Harrah is around April 2. In about 1 year in 10 it comes after April 18, and in 9 years in 10 it comes after March 12.
When is the first frost in Harrah?
The first fall frost (32°F) usually arrives around November 5. There’s a 10% chance of a freeze by October 20 and a 90% chance by November 20.
Can it frost in Harrah 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 12.
What growing zone is Harrah?
Harrah 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 73045. See growing zones in Oklahoma.
More: all Oklahoma frost dates · Oklahoma growing zones · frost vs. freeze