Tulsa, OK Frost Dates
The last spring frost in Tulsa usually comes around March 31 and the first fall frost around November 4.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | March 31 | November 4 |
| Hard freeze, 28°F | March 17 | November 13 |
Growing season: about 220 days.
Frequently asked questions
When is the last frost in Tulsa, OK?
The median date of the last spring frost (32°F) is March 31. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past March 31 lowers the risk for tender plants.
When is the first frost in Tulsa?
The median date of the first fall frost (32°F) is November 4, and a hard freeze (28°F) usually follows around November 13.
How long is the growing season in Tulsa?
About 220 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USW00013968. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.