Signs direct travelers to the park via Pueblo Pintado. Sections of these roads can become extremely rough or impassable during inclement weather. There is no public transportation to the park. The weather in Chaco Canyon is unpredictable and can be extreme. Summer highs are typically in the 80's to mid-90's.
Thunderstorms can produce heavy localized downpours and sudden dramatic drops in temperatures.
Hypothermia, lightning, and flash floods are real concerns. Winter temperatures will drop to well below freezing most nights. If you plan to camp in the winter, prepare for nighttime temperatures in the teens or lower. Spring and Fall are great times to visit with more moderate temperatures, but unexpected storms can change things dramatically. Monitor local weather forecasts.