Mild in Summer and in Winter. Again, the altitude of the Grand Canyon rim--in places nearly a mile and a half above sea-level--makes the summers cooler than the latitude would indicate. It is ten degrees cooler, in July, at Flagstaff, Arizona, than at Salt Lake City, three hundred miles north in Utah. In turn, the southerly location of this titanic wonderland causes the winters to be milder than in Colorado, Utah and Montana.

Average Condition. Visitors should bear in mind that the Grand Canyon is an all-the-year-round resort. Unlike the Yellowstone and many other far west scenic playgrounds, one may visit there with comfort any time of the year. While certain periods are more favorable than others for outdoor life, each season has its distinctive joys.

As a rule, this part of Arizona is a true land of sunshine. Sunny days are largely in evidence.

As a rule, the air is dry. Even the rains don't soak it through.

As a rule, except on the edge of the rim, the wind velocity is under the average.