Dewey

Record Report

Statement as of 8:33 PM CDT on May 20, 2013

... Record daily maximum rainfall broken at Oklahoma City...

The record precipitation at Oklahoma City for may 20 was 2.74
inches... which was set back in 1979. So far today at Will Rogers
World Airport... 2.82 inches of rainfall has fallen... which has
broken the record for this date.

Weather records for Oklahoma City date back to November of 1890.