December weather forecast
Big Bend National Park, TX

December anchors the closing chapter of weather in Big Bend National Park, with the chilling aura taking full effect. The lower end of mercury stature is prominent with temperatures dipping down to 35.4°F (1.9°C), signifying the park’s hibernation phase. Despite the lower temperatures, the months surprisingly contain lesser rain, resulting in mostly clear, albeit colder, days. As one year ends, Big Bend National Park prepares itself to begin a new cycle in the relentless rhythm of seasons in January.

Temperature

A subtle decrease in the average high-temperature marks December in Big Bend National Park, falling from November's moderately hot 77.7°F (25.4°C) to an agreeable 68.4°F (20.2°C). Big Bend National Park witnesses a consistent, sharp contrast from the daytime highs, with an average low-temperature of 35.4°F (1.9°C) throughout December.

Rainfall

Throughout December, in Big Bend National Park, 0.31" (8mm) of precipitation is accumulated. Throughout the year, 10.24" (260mm) of rain is accumulated.

Daylight

The month with the shortest days is December, with an average of 10h and 18min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 5:54 pm. On the last day of December, in Big Bend National Park, sunrise is at 7:47 am and sunset at 6:05 pm CST.