Data from Oklahoma Mesonet.
April's heat in Oklahoma helped propel the January-April period to the warmest on record at 52.3 degres, 5.5 degrees above normal according to the Oklahoma Mesonet. The statewide average temperature during April alone was 63.9 degrees, 4.8 degrees above normal. The National Weather Service says more than 25 tornadoes touched down during April, doubling the average number of 11 for the month. Parts of the state received record rainfall last month as well. The Mesonet site at Blackwell received 12.6 inches of rainfall during April, shattering the old record of 8.59 inches set back in 1991. Rain gauges in Ponca City recorded as much as 12 inches of rain. The average is 3.5 inches.