Weather Forecast and Radar for Diamond Bar, California

Weather in Diamond Bar, CA

Diamond Bar, California has mild weather year-round with temperatures ranging from an average low of 44°F in January to an average high of 91°F in August. The winter months in Diamond Bar typically bring chilly nights with temperatures dipping into the 30s, while the summer months can be quite hot and dry. Spring and fall months bring mild temperatures with highs in the mid-70s and lows in the mid-50s. Rainfall is highest in the winter months with an average of 4.5 inches, while the summer months are the driest with an average of just 1.5 inches of rainfall. Snow rarely occurs in Diamond Bar, but when it does it is usually light and melts quickly. Overall, the weather in Diamond Bar is mild and pleasant throughout the year, making it a great place to live.

Fast Facts About Diamond Bar, CA

As of 2020, the city population is 55870.

Major Cities Nearby Diamond Bar, CA

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Diamond Bar, California.