North Texas finally surrendered to summer’s embrace on Tuesday, July 29, as Dallas Fort Worth International Airport recorded the region’s first 100-degree Fahrenheit reading of 2025. This milestone arrived later than usual, marking the latest occurrence of the season’s initial triple-digit day since 2019, when the thermometer hit the century mark on July 30.
A Delayed Summer Onslaught
The typical arrival of North Texas’ first 100-degree day is around July 1. This year’s delayed peak underscores a significant deviation from the norm, pushing the onset of extreme heat into the latter half of July. The National Weather Service Fort Worth has projected no immediate relief, forecasting continued oppressive temperatures. Highs of 103 degrees are anticipated for Wednesday, July 30, and Thursday, July 31, with heat index values potentially soaring to a sweltering 106 degrees. This phenomenon, often referred to as ‘heat index’ or ‘feels like’ temperature, combines air temperature with relative humidity to indicate how heat affects the human body.
Heat Advisories Issued
In response to the building heat, several counties across the region have been placed under a heat advisory. Tarrant County and Dallas County are among those included in the advisory, which remains in effect until Wednesday evening. Residents in these areas are urged to take precautions to avoid heat-related illnesses. This includes staying hydrated, seeking air-conditioned environments, and limiting outdoor activities during the hottest parts of the day.
Looking Ahead: A Slight Respite
While the immediate forecast paints a picture of relentless heat, a slight reprieve is expected as the weekend approaches. High temperatures are projected to dip into the mid to upper 90s, offering a minor cooling trend from the current extreme conditions. Additionally, there is a low potential for storm activity to develop over Saturday, August 2, and Sunday, August 3. While not a significant break from the heat, any moisture and cloud cover could provide marginal relief.
Historical Context of Summer Heat
The delay in reaching the 100-degree threshold this year is notable. Had North Texas failed to record a 100-degree day in July, it would have marked the first time since 2007. The average date for the first 100-degree day in the region is July 1. The current reading on July 29 is the latest since 2019, when the milestone was reached on July 30. This pattern highlights the variability of summer weather and the significant impact that even a few days’ difference can have on the perceived severity of a heatwave.
The original publication date for this report was July 29, 2025.
