Historical weather data, all-time temperature records, and monthly climate averages for Scottsdale, AZ. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Scottsdale is a genuinely pleasant shoulder-season moment — historically averaging a high of 83° with almost no chance of rain. The date has swung dramatically in the past, from a 99° scorcher in 1961 down to a 34° freeze in 1958, but most years land somewhere comfortably in between.
Scottsdale plays for keeps on the extremes: the all-time high of 119° in June 1970 is a genuine endurance test, while January 2013 brought a shocking 18° low that still stands as the coldest on record. Nearly 4 inches of rain fell in a single September day in 1969 — a reminder that the desert monsoon is no joke.
Scottsdale is warmest from late June through September, with average highs pushing 104–107° at peak — serious heat that demands planning around. The coolest stretch is the holiday week between Christmas and New Year's, where highs ease to a mild 66°. If you're watching for rain, late July into early August is the wet season, driven by monsoon moisture.