West Palm Beach averages 74.2 days a year above 90°F, with August the wettest month at 8.68 in of normal rain. The hottest day on record was 99°F on Apr 30, 1971; the coldest, 27°F on Jan 20, 1977. The single biggest 24-hour rain event recorded was 8.79 in on Sep 25, 2004.
Climate and Average Weather Year Round in West Palm Beach
Year-round temperature
In West Palm Beach, the warmest months are June through September, with average daily highs between 88°F and 90°F. The coldest stretch runs December through February, with highs between 75°F and 77°F and overnight lows reaching 58°F.
Rainfall through the year
Rainfall in West Palm Beach averages 5.1 in per month over the long run. August is the wettest at 8.7 in, while February is the driest at 2.6 in.
Days at 90 °F or hotter
West Palm Beach averages 74.2 days per year at 90 °F or hotter. The hottest year on record saw 119 such days (2011); the coolest just 14 (2026).
Precipitation this year
As of May 27, West Palm Beach has received 18.0 in of precipitation this year — 3% above the long-term normal for this point in the year (17.4 in).