Historical weather data, all-time temperature records, and monthly climate averages for Calexico, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Calexico is essentially a guaranteed dry day — across 92 years of records, precipitation has never once fallen on this date. Expect a typical spring afternoon around 84°, though history shows the thermometer can swing wildly: from a scorching 100° in 1989 down to a bitter 39° overnight back in 1945.
Calexico plays in an extreme league of its own, with an all-time high of 122° set in July 1934 — one of the most punishing temperatures ever recorded in the American Southwest. On the other end, a 16° reading in January 1937 proves even this desert can bite back in winter.
Summer here is serious business: highs average 109° in mid-July and don't drop below triple digits from June through September. If you're looking for the most comfortable window, aim for late fall or winter, when January and December highs hover around 70° — and rain, while rare, is slightly more likely in early December.