National Weather Service United States Department of Commerce

Hazardous Heat in the Western U.S.; Heavy Rain and Flooding Potential in the Southern Rockies

Widespread high temperatures in the 90s with heat indices exceeding 100 degrees will persist across the western U.S. this weekend into next week. Some daily high temperature records are forecast to be tied or broken. Monsoon conditions continue to linger across the Southern Rockies posing a heavy rainfall threat which may lead to additional flash flooding concerns. Read More >



Here is a look at some climatological information for the latest snowfalls on record at Cincinnati, Columbus, and Dayton. Records of snowfall data go back to 1893 for Cincinnati, 1885 for Columbus, and 1894 for Dayton. Note that the term "measurable" denotes snowfall that is equal to or greater than a tenth of an inch.

 
Cincinnati (data back to 1893)
Latest date of measurable snowfall May 6, 1989
(0.2 inches)
Earliest seasonal last measurable snowfall February 11, 1919
(0.4 inches)
Latest date of 1 inch or more of snowfall May 2, 1897
(1.5 inches)
Most snowfall on any day in May 1.5 inches
(May 2, 1897)
Average date of last measurable snowfall (1981-2010) March 25
Average date of last 1 inch or more of snowfall (1981-2010) March 11


 
Columbus (data back to 1885)
Latest date of measurable snowfall May 9, 1923
(0.3 inches)
Earlest seasonal last measurable snowfall February 16, 1997
(0.4 inches)
Latest date of 1 inch or more of snowfall April 30, 1908
(2.4 inches)
Most snowfall on any day in May 0.8 inches
(May 7, 1989)
Average date of last measurable snowfall (1981-2010) March 31
Average date of last 1 inch or more of snowfall (1981-2010) March 9


 
Dayton (data back to 1894)
Latest date of measurable snowfall May 9, 1923
(0.5 inches)
Earliest seasonal last measurable snowfall February 7, 1945
(0.5 inches)
Latest date of 1 inch or more of snowfall April 21, 1901
(3.5 inches)
Most snowfall on any day in May 0.5 inches
(May 9, 1923)
Average date of last measurable snowfall (1981-2010) March 29
Average date of last 1 inch or more of snowfall (1981-2010) March 9