• Sunset Crater Volcano National Monument

    Sunset Crater Volcano

    National Monument Arizona

Weather

Hikers in snow-covered lava landscape

Lava Flow Trail in winter

NPS photo by Dallas Larsen

Not all of Arizona is warm dry desert. Weather can vary widely, especially with elevation. At Sunset Crater Volcano (6960'/2121m above sea level), you can expect cool/cold nights year round. Expect windy conditions most of the year.

Spring is usually mild, but heavy snowfall can occur. Summer days are warm with temperatures in the 80s; afternoon thunderstorms are likely July to September. In winter, snow and freezing temperatures alternate with mild weather.

Be prepared for abrupt weather changes in any season. Best advice - dress in layers.

Click here for the current Flagstaff weather forecast.

Did You Know?

"Entering Flagstaff" road sign

Flagstaff, Arizona is the world's first  designated International Dark Sky City. This helps to ensure dark night skies at 3 national monuments located nearby - Sunset Crater Volcano, Wupatki, and Walnut Canyon.