Historical weather data, all-time temperature records, and monthly climate averages for Sun City, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Sun City sits comfortably in the shoulder season, with 125 years of data pointing to a mild 74° high and a cool 43° low. That said, this date has a wild range — it's swung from a freezing 30° in 1928 to a scorching 97° in 1961. Rain is unlikely at just a 14% chance, and snow is essentially off the table.
Sun City plays for keeps: the all-time high of 118° in August 1933 puts it firmly in Southern California desert territory, while the record low of 15° in January 1963 proves it can bite back in winter. A single February day in 1927 dropped 5.28 inches of rain, and December 1915 brought a remarkable 12 inches of snow — extremes that feel almost impossible given the typical sunny forecast.
Sun City runs warm and dry for most of the year, with late July the undisputed peak at a 99° average high and early January the coolest stretch at a still-mild 65°. If you're rain-averse, stick to May through October — the wettest stretch clusters around late February into early March, averaging 0.72 inches per week. Spring and fall offer the sweet spot: warm days, cool nights, and very little precipitation.