Historical weather data, all-time temperature records, and monthly climate averages for Thousand Oaks, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Thousand Oaks is a mild, dry affair — historically speaking. Across 43 years of data, today averages a high of 67° and a low of 47°, with only a 14% chance of rain. The date has swung from a toasty 83° in 1960 down to a chilly 39° overnight in 1964.
Thousand Oaks earns its Southern California reputation, but the extremes tell a more dramatic story. The mercury has hit 108° — in October, not July — and bottomed out at 25° back in January 1963. A single March storm in 2011 dumped nearly 5 inches of rain in one day, the wettest on record.
Thousand Oaks is remarkably consistent year-round, with monthly averages swinging just 13 degrees from the coolest weeks in late December (65° highs) to the warmest in early September (79° highs). If you're chasing sun and warmth, late summer through early fall is peak season. Winter brings the best shot at rain, with late January averaging the most precipitation at 0.81 inches per week.