Average daily temperature during the main season is between 50-70 degrees Fahrenheit during the day and between 30-59 degrees Fahrenheit at night. The park can experience snow as early as September and into late May. During late spring and early fall, temperatures well below freezing (i.e. between 15 to 25 degrees Fahrenheit) are not unusual. Also the wind chill is a major factor in the temperature difference from low-lying areas to the high country. Wind speeds at 4,000 feet can exceed 40 mph.

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