NPS Photo Petrified Forest National Park
Tonight at Petrified Forest National Park
Park Hours: 8am to 5pm, MST. Don't forget that Arizona does not observe Daylight Savings. Petrified Forest is best known for its Triassic fossils. It's like having two parks in one, an ecosystem over 200 million years old with plants and animals now represented in the surreal landscape of the Painted Desert. There is also a living park with its own denizens adapted to a demanding environment.
Weather & conditions
Petrified Forest National Park is a semi-arid grassland. Temperatures range from above 100° F (38° C) to well below freezing. About 10 inches (25.4 cm) of moisture comes during infrequent snow in the winter and often dramatic summer thunder-storms. Animals and plants are adapted to extremes in temperature and moisture. You should be ready too. Check out the forecast before you arrive and plan accordingly.