When we display the “average” or “normal” daytime high and low, it is determined over a 30-year period. On Tuesday, a new 30-year-climate-normal period began, replacing the period from 1981 to 2010. The National Weather Service in New Orleans announced the most notable change is a 2-degree increase in the normal high to 93 and the normal low advancing 1 degree to 74. Climatologists determined these adjustments are a result of a cooler decade during the 1970s, replaced by a warmer decade in the 2000s. Staying in the climate arena, our precipitation totals since Jan. 1 total 28.25 inches, with normal values at 36.26 and a deficit to date at 8.01 inches. Cane farmers have requested a no-rain forecast for the next few weeks.

Fastcast: Hot.

Mostly sunny and hot. High near 96. Heat index values as high as 111. Calm winds becoming westerly at 5 mph. Tonight: Partly cloudy, low about 78. Southerly winds 5 mph, becoming calm.