Historical weather data, all-time temperature records, and monthly climate averages for Los Alamitos, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Los Alamitos is a mild, mostly dry day by the numbers — expect an average high of 71° and just a 13% chance of rain. The date has seen some drama, though: temps spiked to 101° back in 1989, a full 30 degrees above the norm.
Los Alamitos has seen it all, from a sweltering 111° in September 2010 to a bone-chilling 25° in January 1963 — a 86-degree spread that tells you this place isn't quite as placid as its Southern California reputation suggests. The wettest single day on record dumped 5.02 inches in January 1956, nearly unimaginable for a region that averages well under an inch in its rainiest weeks.
Los Alamitos is a year-round mild destination, with monthly average highs ranging from a cool 66° in January to a warm 83° in August — never brutal, never frigid. Peak warmth arrives in late summer around early September, while winter stays gentle enough that even the coldest week averages a 66° high. If you're trying to avoid rain, summer through fall is your safest bet; February is the wettest stretch of the year.