Houston is on track to set a heat-related record, with the city projected to record its highest average annual temperature at 73.2 degrees Fahrenheit, 2.4 degrees above the historical average. This continues the ongoing warming trend, according to the National Weather Service.
Delayed by weather conditions, Houston’s first 100-degree day occurred on July 22, with the year recording only eight days at or above that temperature. Despite the lower number of triple-digit days, the summer ranks among the hottest on record. Spring and fall also experienced temperatures well above average, contributing to one of the hottest years recorded in the city since 1889.
The heat continued beyond daytime highs, as nighttime temperatures remained elevated, making this year the second-warmest summer on record for overnight lows, just 0.4 degrees cooler than 2023. Additionally, the fall season ranked as the second-warmest on record, with only a minimal difference from the previous record.
Residents experienced fewer rainy days, contributing to a severe flash drought. Fall rainfall totaled just 8.25 inches, nearly 6 inches below the typical amount, and by mid-December, over 60% of Southeast Texas was classified as under moderate drought conditions. Although occasional wetter periods began in November, the precipitation deficit had a significant impact.
The city also recorded its highest number of 90-degree days, surpassing previous seasonal records. During the fall, 41 days reached or exceeded 90 degrees, tying the all-time high for the season. Looking ahead, the forecast indicates patchy fog and a slight chance of showers, which may temporarily lower the steadily rising temperatures. A potential freeze in the coming week could also reduce the yearly average slightly, providing a brief period of cooler weather as the year ends.
