According to data from the National Weather Service, the month of August finished with an extraordinary average temperature of 91.0 degrees. This is nearly 6 degrees higher than the “normal” average temperature for the month of August in Houston, 85.2 degrees.
Moreover, it exceeded the city’s warmest month on record—any month in the last 150 years, mind you. This previous record temperature. 90.4 degrees, was set during the absolutely torrid month of August 2011. Temperatures this August were, by any measure, extreme and not-normal. The brown area in the graphic below shows the normal range of temperatures.
Along with this extreme heat, we recorded just 0.01 inch of rain during the month of August at the city’s official station, at Bush Intercontinental Airport. That’s one-hundredth of an inch. This was less rain than even the 0.09 inches recorded in August 2011, but second driest on record to a “trace” of rainfall recorded in 1927. The good news is that while our heat will continue, albeit at not as crazy levels, we do have some improving rain chances in the days ahead.
It’s not going to rain today, as we’re still under the influence of a weak front. This means we’re going to see sunny skies, with highs of around 100 degrees for much of the area. But we’re still enjoying some lower humidity this morning, and that should carry into the afternoon hours. However as light northeasterly winds turn easterly, humidity levels will rise. Lows tonight should drop into the upper 70s.
This will be a sunny, hot, and somewhat humid day with highs near 100 degrees for the area. As moisture levels rise we’ll see an increasing chance of showers and thunderstorms near the coast. I’d say areas along and south of Interstate 10 have about a one-in-three chance of seeing a passing shower on Saturday. Skies will be mostly sunny, otherwise. Lows on Saturday night may briefly drop below 80 degrees.
Sunday and Labor Day
Here’s where the rain chances peak. Rainfall odds for much of the area are probably about 50 percent on Sunday, and 70 percent on Labor Day. Again, when it’s not raining (which should be most of the time), skies are going to be mostly sunny. So these will be passing showers as an upper-level low pressure system over Louisiana perturbs our atmosphere. The further one lives away from the coast, and the further west, the lower the rain chances and accumulations. So while I think coastal areas may end up with accumulations of about 0.5 inch, most areas further inland probably will receive less. Temperatures both days should be in the mid- to upper-90s, and moderated of course by passing showers.
Tuesday and Wednesday will both have a decent chance of rain showers, perhaps 40 percent each day, but then we’re probably going back to the upper 90s for the second half of next week with a hot and mostly rain-free pattern. We’ll probably remain mostly that way through the middle of September.
We’ll have an update for you on Labor Day morning about the area’s rain chances. Have a wonderful holiday weekend.