Cincinnati averages 26.7 days a year above 90°F, with May the wettest month at 4.7 in of normal rain. The hottest day on record was 105°F on Jul 30, 1999; the coldest, −22°F on Jan 19, 1994. The single biggest 24-hour rain event recorded was 4.53 in on Oct 20, 1985.
Climate and Average Weather Year Round in Cincinnati
Year-round temperature
In Cincinnati, the warmest months are June through September, with average daily highs between 80°F and 87°F. The coldest stretch runs December through February, with highs between 41°F and 45°F and overnight lows reaching 24°F.
Rainfall through the year
Rainfall in Cincinnati averages 3.6 in per month over the long run. May is the wettest at 4.7 in, while February is the driest at 2.8 in.
Days at 90 °F or hotter
Cincinnati averages 26.7 days per year at 90 °F or hotter. The hottest year on record saw 64 such days (2007); the coolest just 5 (2003).
Precipitation this year
As of May 28, Cincinnati has received 20.8 in of precipitation this year — 14% above the long-term normal for this point in the year (18.2 in).