average weather scottsdale october
To find out how often it rises over 80, 90 or 100 Â°F each month in Scottsdale, scroll down farther. There are also monthly and yearly counts of days with cold weather. All the numbers are averages, based on climate data gathered from 1981 to 2010. Scottsdale has highs in the 100s Fahrenheit on most days during summer. The 100-degree weather usually begins in May and can persist until September. In some years, even a day in October reaches 100 degrees.