However, we ended the month with high afternoon temperatures that remained below normal, reaching the lower 60s, while nighttime temperatures dipped into the upper 40s in the city and the upper 30s in areas further north.

On Saturday our weather will be dominated by high pressure, bringing clear skies and light winds for most of the weekend. We’ll wake up to another morning of cool temperatures across the city. Areas along and south of Interstate 10 will see low temperatures in the low to mid 40s, while regions north of I-10 will dip into the mid and upper 30s. Afternoon temperatures will remain cool, with highs in the upper 50s and lower 60s – which is significantly colder than our usual late November high of 68 degrees.

Later this evening, a weak atmospheric disturbance will pass overhead, bringing with it an increase in mid- to upper-level clouds. This will result in slightly warmer temperatures with lows around 50 degrees in the city and along the coast. However, a cooler 40°C is expected elsewhere, and the Piney Woods could see temperatures around 30°C.

On Sunday, light southeasterly winds will bring a warming trend and more cloudiness to start the week. Afternoon highs will rise to the mid and upper 60s. A low-pressure system will form along the coast on Tuesday, bringing scattered showers and thunderstorms for the rest of the week, and could bring rainfall totals of possibly more than 2.5 centimeters in some areas.

This is characteristic of a La Niña season, in which unusually cooler ocean temperatures in the eastern tropics of the Pacific Ocean can lead to significant changes in global weather patterns. Changes in the jet stream due to La Niña often result in drier and warmer conditions in certain regions, such as Texas. The current La Niña forecast places a nearly 60% chance that La Niña will continue to influence the weather from January to March, impacting temperature and precipitation patterns.

As meteorological winter begins on December 1st, average temperatures will continue to fall. This marks the end of the growing season as nighttime temperatures drop to over 30°C. Weather service records show the average time of the first frost in Houston is December 9th.

However, the National Gardening Association expects this winter milestone could be reached later in the month. The group estimates there is a 50% chance of experiencing 32 degree frost from December 20th and an 80% chance of reaching that temperature by January 11th.