Here’s an interesting view at the last month. Traditionally, Tucsonans know that Tucson weather changes quickly in the fall from summer to winter. This change is always welcomed, but it also means that Thanksgiving always sneaks up on us.
The plot below shows the drama of this changeover in the last month from higher temperatures to lower. Plus, you can see the timeperiod in the middle where the change seems to have been put into motion by a storm event (see the lightning spikes in blue). After those 6 days of cloudy and stormy weather, we have slipped into a pretty predictable pattern with no clouds and gradually decreasing temperatures. Looks like something must be happening today with the high pressure and lower temperatures, though.