Historical weather data, all-time temperature records, and monthly climate averages for Livermore, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Livermore typically delivers a pleasant spring day, with average highs of 69° and lows around 44°. The date has seen its share of extremes though — from a sizzling 84° back in 1916 to a hard freeze at 32° in 1945. There's a 1-in-4 chance of rain today, so keep an eye on the sky.
Livermore plays in the big leagues when it comes to heat — a scorching 116° on September 5, 2022 stands as the all-time high, a reminder of just how punishing the valley can get in early fall. On the other end, a 1961 January brought a brutal 18°, and the valley has even seen 3 inches of snow in a single day. This is a place of real weather extremes.
Summer is the main event in Livermore, with mid-July highs averaging 90° and a long warm stretch that runs from June through September. If you're looking to avoid the heat, January through March keeps things mild in the 57–66° range. Rain is mostly a winter affair — the last week of December is the wettest of the year, averaging nearly 0.8 inches.