Huntsville averages 54.8 days a year above 90°F, with December the wettest month at 5.87 in of normal rain. The hottest day on record was 106°F on Jun 29, 2012; the coldest, −11°F on Jan 21, 1985. The single biggest 24-hour rain event recorded was 9.07 in on Dec 22, 1990.
Climate and Average Weather Year Round in Huntsville
Year-round temperature
In Huntsville, the warmest months are June through September, with average daily highs between 87°F and 92°F. The coldest stretch runs December through February, with highs between 52°F and 57°F and overnight lows reaching 33°F.
Rainfall through the year
Rainfall in Huntsville averages 4.5 in per month over the long run. December is the wettest at 5.9 in, while September is the driest at 3.5 in.
Days at 90 °F or hotter
Huntsville averages 54.8 days per year at 90 °F or hotter. The hottest year on record saw 111 such days (2016); the coolest just 4 (2026).
Precipitation this year
As of May 29, Huntsville has received 19.7 in of precipitation this year — 20% below the long-term normal for this point in the year (24.7 in).