:. Phoenix Temperature Trends .:

As the graph shows, the Phoenix Weather isn't always warm, although it's rarely very cold. And typically the low temperature in Phoenix on any given day will be around 15 degrees cooler than the daily high. It's not unusual for the temperature in Phoenix to be cold when you wake up, and two hours later to be quite warm.

Highs are regularly more than 10°C higher than the lows, and the difference can feel like even more because of the intense dessert sun.