Garden grove ca weather Garden Grove receives an average of 13.6 inches (345 mm) of precipitation per year, with most of the rainfall occurring between November and March. The city experiences an average of 35 days with measurable precipitation. The wettest month on record was January 1993, when 14.77 inches (375 mm) of rain fell. In terms of weather hazards, Garden Grove is at risk of experiencing heatwaves, wildfires, and droughts during the summer months. The city is also at risk of experiencing floods and mudslides during the winter months, particularly when El Niño events occur. The Santa Ana winds are another weather phenomenon that affects Garden Grove. These dry, hot winds originate in the Great Basin and blow through the mountain passes of Southern California, reaching speeds of up to 40 mph (64 km/h). The Santa Ana winds can contribute to the spread of wildfires and can cause damage to property and vegetation. Despite these weather hazards, Garden Grove is a vibrant and diverse city that offers a variety of activities and attractions. The city's Mediterranean climate provides a pleasant environment for outdoor activities, such as visiting the city's many parks and gardens, playing sports, and attending festivals and events. In conclusion, Garden Grove, CA, has a Mediterranean climate with mild, wet winters and hot, dry summers. The city experiences approximately 278 sunny days per year and receives an average of 13.6 inches (345 mm) of precipitation per year. Garden Grove is at risk of experiencing weather hazards, such as heatwaves, wildfires, droughts, floods, and mudslides, but the city's pleasant climate and variety of activities and attractions make it a desirable location to live and visit.