Historical weather data, all-time temperature records, and monthly climate averages for Patterson, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Patterson runs mild, with 107 years of history pointing to an average high of 71° and a low of 46°. There's a 23% chance of rain today — not unlikely, but not a sure thing either. The date's extremes tell the full story: a toasty 90° back in 1960 and a sharp 34° in 1945.
Patterson can get serious when it wants to. The all-time high hit 113° on July 23, 2006, while the coldest on record was a frigid 18° on January 11, 1949 — a 95-degree spread that speaks to this Central Valley town's range. Even snow has shown up, with 1.5 inches falling on January 21, 1962.
Patterson follows a classic Central Valley rhythm: cool and occasionally wet in winter, then a long, hot summer that peaks in the mid-90s from July through August. If you're avoiding heat, come between November and March, when highs stay in the 50s and 60s. Rain is concentrated in the winter months, with late December being the wettest stretch of the year.