Average Date of Last Spring Freeze in OK
With the recent temperatures being much warmer than usual, it would be easy to get spring fever and plant too early.
Remember that our average spring freeze dates have not passed yet. Also, remember that approximately half the time, the last freeze of spring will occur later than the date shown on the map. Plan your plantings accordingly and don't plant anything that is only marginally cold-hardy
unless you're prepared to cover it up at night and uncover it in the morning (and that doesn't guarantee plant damage will not occur, either).
The OCS map of median last spring freeze dates is linked below.
If you want to see more detailed data on your specific county, you can visit the website of the Oklahoma Climatological Society and go to the pages for your specific county.
I know everyone's getting eager to plant, but we'll see more normal temperatures, including sub-freezing nights in some locations, in the next 7-10 days.
Here is a link that might be useful: Map of Median Dates of Last Spring Freeze