Last Freeze Discussion: UPDATED March 14th


UPDATE: Mon 14 March 2011

A light freeze (or at least some frost) is possible for Tuesday morning. A milder pattern resumes beyond then into the weekend. Are we through with frost and freeze potential after Tuesday? I'm not ready to say that yet; especially while we're in a transitional pattern. One more frost or freeze is certainly possible later this month.

Remember that the average last freeze dates for Texoma are March 15-24 south of the Red and March 25-31 north.


UPDATE: Mon 7 March 2011 / 5:20p.m.

A freeze is looking rather likely for the morning of Thursday, March 10. There will be a dry rather chilly polar air mass in place with lows from the mid 20s to low 30s. A light freeze may take place over the eastern portions of Texoma on Friday, march 11th before warmer winds take hold into the weekend and beyond.
A fairly mild pattern with a very low freeze threat is anticipated March 12-20.


Well I’m starting to get the e-mails again with the question, “when is the last freeze expected?”

A look at the long-term data gives us March 15-April 1 as the date range during which half of the years have had their last spring freeze and half of the years have not (the definition of average applied to this case). Most of southern Oklahoma has its last spring freeze from March 25-31 while in north Texas the freeze threat ends within the period March 15-24 (discussion continues below map):

Records for late freezes extend well into April, and in fact several of the records seen below are for freezes into early May.

Record late freezes at selected cities (records not available for all locations):

  • Ada…May 5, 1911    (32 degrees)
  • Ardmore…May 1, 1903   (32 degrees)
  • Antlers…May 1, 1960   (32 degrees)
  • Durant…April 22, 1931   (31 degrees)
  • Healdton…May 12, 1979   (32 degrees)
  • Madill…April 19, 1953   (32 degrees)
  • Marietta…April 29, 2008   (32 degrees)
  • Sherman-Denison…April 15, 1928   (29 degrees)
  • Tishomingo…May 7, 1907   (32 degrees)

A light freeze event is possible Sunday (March 6th) behind the next frontal system. Then, the models are all depicting a somewhat colder air mass moving southward from northern Canada and into Texoma March 9th.

This event presents threat of a hard freeze behind the front, with lows in the 20s area wide March 10-11. This is still a way off, but it looks probable based on model continuity and agreement with each other.

So, what about the last spring freeze? La Nina springs tend to have later freezes than average due to drier air masses in place. Given this, a freeze threat into early April is expected for the spring of 2011.

If you just want to go with the averages and forget about La Nina, odds are you’ll see a few more freezes through late March.

Take Care,

Steve LaNore

Chief Meteorologist






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  • by Nancy Location: Denison on Mar 10, 2011 at 11:33 PM
    So, (now that it's the 11th) tonight looks like the last freeze for a while, are you still expecting freezes into early april? Just wondered if the new forecast changes the outlook. Also, what are your predictions for rainfall and heat this spring and summer, or is it too soon to tell?
  • by Steve LaNore Location: KXII-TV on Mar 2, 2011 at 03:45 PM
    Dear Anonymous, Well, there you have it! Why did I make it so complicated?...LOL back to you -:) Steve
  • by Anonymous on Mar 2, 2011 at 05:57 AM
    if i dont plant my garden it will not freeze, lol
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