Garden Grove's weather is characterized by mild winters with average temperatures ranging from 5-28°C, with no extreme cold snaps. As spring approaches, temperatures gradually warm up, reaching averages of 17-22°C in April and May. Summer months are warm to hot, with July and August averaging around 25°C, but rarely exceeding 35-37°C. Autumn brings a slight cooling trend, with average temperatures ranging from 12-19°C in September and October. Winters bring cooler temperatures again, with averages dipping back down to around 5-14°C by December.