Palmdale averages 109.1 days a year above 90°F, with February the wettest month at 1.84 in of normal rain. Across decades of records, Mondays are 18% rainier than the weekly average. The hottest day on record was 118°F on Aug 5, 1990; the coldest, 9°F on Dec 15, 1971. The single biggest 24-hour rain event recorded was 3.51 in on Aug 20, 2023.
Climate and Average Weather Year Round in Palmdale
Year-round temperature
In Palmdale, the warmest months are June through September, with average daily highs between 92°F and 98°F. The coldest stretch runs December through February, with highs between 58°F and 63°F and overnight lows reaching 34°F.
Rainfall through the year
Rainfall in Palmdale averages 0.6 in per month over the long run. February is the wettest at 1.8 in, while June is the driest at 0.0 in.
Days at 90 °F or hotter
Palmdale averages 109.1 days per year at 90 °F or hotter. The hottest year on record saw 137 such days (2003); the coolest just 7 (2026).
Precipitation this year
As of May 29, Palmdale has received 3.1 in of precipitation this year — 36% below the long-term normal for this point in the year (4.8 in).