Jacksonville averages 88 days a year above 90°F, with June the wettest month at 7.32 in of normal rain. The hottest day on record was 104°F on Jun 19, 1998; the coldest, 9°F on Jan 21, 1985. The single biggest 24-hour rain event recorded was 5.64 in on Aug 24, 1995.
Climate and Average Weather Year Round in Jacksonville
Year-round temperature
In Jacksonville, the warmest months are June through September, with average daily highs between 88°F and 92°F. The coldest stretch runs December through February, with highs between 66°F and 69°F and overnight lows reaching 47°F.
Rainfall through the year
Rainfall in Jacksonville averages 4.0 in per month over the long run. June is the wettest at 7.3 in, while November is the driest at 2.0 in.
Days at 90 °F or hotter
Jacksonville averages 88.0 days per year at 90 °F or hotter. The hottest year on record saw 129 such days (2015); the coolest just 5 (2026).
Precipitation this year
As of May 28, Jacksonville has received 8.1 in of precipitation this year — 40% below the long-term normal for this point in the year (13.6 in).