Get ready for some heat.
After a summer of slightly lower temperatures, much of south Louisiana is about to get a blast of real heat starting Thursday.
Due to a high pressure system leading to fewer storms and less cloud cover, the National Weather Service is predicting temperatures in the 90s, which combined with dewpoints in the mid-70s will make it feel like 108 to 110 degrees Fahreinheit in much of southeast Louisiana.
A heat advisory is in effect from 9 a.m. to 7 p.m. Thursday for southeast Louisiana, includi…
That's a big difference from the past few weeks, when summer temperatures across south Louisiana this year came in a bit lower than those last summer, said Alek Krautmann, a meteorologist with the National Weather Service's New Orleans/Baton Rouge office.
Last year, Baton Rouge's average temperature for July was 84.4 degrees Fahrenheit — the fifth-hottest on record, which for the Capital City means since 1894, Krautmann said.
This year, the average temperature for July in Baton Rouge was 83 degrees. It's not a big dip from last year, but as anyone with a struggling air-conditioner knows, a degree or two can make a difference.
Monthly averages are the average of the daily highs and lows across a particular month, Krautmann said.
There have been less completely scorching days this summer, as well, he said.
From June 1 to Aug. 15, Baton Rouge has had only four days of temperatures 95 degrees or higher. In that same period last summer, residents suffered through 26 such days.
So far this summer, New Orleans has had five of those 95-degrees-or-higher days. Last year, the city endured 27 of those.
"We always have our humidity, so it (still) feels like a typical southern summer," Krautman added.
Heavy rainfall this summer may be key to the slightly cooler temperatures.
Krautman said June in New Orleans was its third-wettest June since 1947, with 15.48 inches of rain.
Baton Rouge in June was its 10th wettest June since 1894, with 9.56 inches of rain.
State climatologist Barry Keim, who's also a professor and graduate director with LSU's Department of Geography and Anthropology, gives a rundown for the average temperatures from June 1 through Aug. 15 for this summer, compared to last summer, in the region:
- Baton Rouge: 81 degrees in 2017; 83.2 degrees in 2016.
- New Orleans: 82 degrees in 2017; 85.6 degrees in 2016.
- Lafayette: 82 degrees in 2017; 84 degrees in 2016.
Keim said the public can follow information on rainfall and temperatures at the website of the Southern Climate Impacts Planning Program, a collaborative effort of a number of research centers, including LSU at southernclimate.org. Click on "data tools," then "climograph tool" to search by city or weather station, by name, to pull up user-friendly graphics.