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Will it freeze in Okmulgee in the next 7 nights?
No overnight lows at or below 32°F are forecast in Okmulgee 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.
1 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 44°F Above 36°F · Chance Rain Showers then Mostly Cloudy
- Fri, Nov 6 39°F Above 36°F · Mostly Cloudy
- Sat, Nov 7 36°F Frost possible · Partly Cloudy
- Sun, Nov 8 37°F Above 36°F · Mostly Clear
- Mon, Nov 9 42°F Above 36°F · Mostly Clear
- Tue, Nov 10 46°F Above 36°F · Mostly Clear
- Wed, Nov 11 46°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 Okmulgee
The median first fall hard-freeze date (28°F) is November 6, from NOAA’s 1991–2020 Climate Normals at Okmulgee Wtr Wks. 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 31 · Apr 19 · May 3 | Oct 5 · Oct 20 · Nov 2 | 184 days |
| 32°F freeze | Mar 23 · Apr 8 · Apr 25 | Oct 12 · Oct 28 · Nov 11 | 203 days |
| 28°F hard freeze | Mar 11 · Mar 29 · Apr 15 | Oct 22 · Nov 6 · Nov 23 | 224 days |
Average high temperature by month
1991–2020 normals at Okmulgee Wtr Wks
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 Okmulgee, OK come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Okmulgee Wtr Wks (station USC00346670, elevation 647 ft), 4.0 mi from Okmulgee. 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 Okmulgee
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Henryetta, OK | 13 mi | Apr 8 | Oct 28 |
| Bixby, OK | 22 mi | Apr 1 | Nov 1 |
| Glenpool, OK | 22 mi | Mar 30 | Nov 4 |
| Jenks, OK | 26 mi | Mar 30 | Nov 4 |
| Sapulpa, OK | 28 mi | Mar 30 | Nov 4 |
| Coweta, OK | 29 mi | Apr 1 | Nov 1 |
| Broken Arrow, OK | 30 mi | Apr 1 | Nov 1 |
| Muskogee, OK | 35 mi | Apr 7 | Oct 30 |
| Tulsa, OK | 35 mi | Mar 31 | Nov 4 |
| Sand Springs, OK | 37 mi | Mar 30 | Nov 4 |
Frequently asked questions
When is the last frost in Okmulgee?
On average, the last spring frost (32°F) in Okmulgee is around April 8. In about 1 year in 10 it comes after April 25, and in 9 years in 10 it comes after March 23.
When is the first frost in Okmulgee?
The first fall frost (32°F) usually arrives around October 28. There’s a 10% chance of a freeze by October 12 and a 90% chance by November 11.
Can it frost in Okmulgee 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 19.
What growing zone is Okmulgee?
Okmulgee 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 74447. See growing zones in Oklahoma.
More: all Oklahoma frost dates · Oklahoma growing zones · frost vs. freeze