Historical weather data, all-time temperature records, and monthly climate averages for Palmdale, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Palmdale is a mild shoulder-season day, historically averaging a high of 72° and a low of 43°. But the range has been wild — 96° back in 1961 and a freezing 29° in 1945 show just how unpredictable the Antelope Valley can be in early spring. Rain is nearly a non-event, with only an 8% historical chance of any precipitation.
Palmdale plays in extremes. The thermometer has hit 118° (August 1990) and plunged to 6° (January 1963) — a 112-degree swing between all-time records. A single August storm in 2023 dropped 3.51 inches in one day, and a January 1974 snowstorm buried the valley under 16 inches.
Summer dominates the calendar here — the last week of July averages a scorching 99° high, and triple digits are routine from June through September. If you're heat-averse, aim for January through March, when highs hover in the upper 50s to upper 60s. The wettest stretch is late February into early March, though even then you're only averaging 0.44 inches per week.