Pleasant October Weather headed for the Rio Grande Valley and Deep South Texas, October 17-21 2009 (click to enlarge)
100 Degree Days May Be History in 2009
Advancing Westerlies, Shortening Days Making Presence Felt

October 1-15: Still Smokin’
While longer nights and remnant soil moisture laid down in September brought healthy doses of morning dew, the moisture was not enough to stop the "heat train" of surface southerly flow underneath a stubborn ridge of high pressure deep into the atmosphere through the first half of October. A shallow cool front dropped temperatures into the 70s to lower 80s during the weekend of October 10th and 11th, preceded by locally heavy rainfall from Brownsville to the coast on the 9th. Outside of that, the heat beat went on. Daytime temperatures between October 1st and 9th ranged through the 90s, and nights held in the sweltering upper 70s to lower 80s. The shallow front that broke the heat on the 10th was a memory by the 13th, as readings soared once again, this time breaking 100°F at McAllen/Miller Airport on the 14th and 15th, setting more daily records in a year full of them. In 2009 thus far, the century mark has been reached or exceeded 78 times; more than 25 per cent of all days through October 16th! For continuous updates of climate data, click here.

October 16th and Beyond: A Real Change?
Though few expect truly chilly weather to come crashing in and taking up residence in October, the period from October 16th through 19th will feature pleasant days with plenty of sunshine for most, and comfortable evenings with a little nip in the air each morning as temperatures fall into the 50s and 60s for all. A brief warm up through the 22nd may drop down again by Friday, October 24th and continue into the first half of the following weekend. One thing’s for sure: The upcoming week will be a nice spell of weather to get outside and enjoy!

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