Jackson averages 80.4 days a year above 90°F, with April the wettest month at 5.28 in of normal rain. The hottest day on record was 107°F on Aug 30, 2000; the coldest, 10°F on Jan 17, 2024. The single biggest 24-hour rain event recorded was 6.91 in on Apr 6, 2003.
Climate and Average Weather Year Round in Jackson
Year-round temperature
In Jackson, 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 57°F and 62°F and overnight lows reaching 38°F.
Rainfall through the year
Rainfall in Jackson averages 4.3 in per month over the long run. April is the wettest at 5.3 in, while September is the driest at 3.3 in.
Days at 90 °F or hotter
Jackson averages 80.4 days per year at 90 °F or hotter. The hottest year on record saw 118 such days (2010); the coolest just 1 (2026).
Precipitation this year
As of May 28, Jackson has received 7.2 in of precipitation this year — 69% below the long-term normal for this point in the year (23.1 in).