what time zone is oklahoma state?
Central Time Zone UTC−06:00
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 Oklahoma is one of 32 states with capital punishment as a legal sentence , and the state has had ( between 1976 through mid @-@ 2011 ) the highest per capita execution rate in the US . 

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 Oklahoma has four primary mountain ranges : the Ouachita Mountains , the Arbuckle Mountains , the Wichita Mountains , and the Ozark Mountains . Contained within the U.S. Interior Highlands region , the Ozark and Ouachita Mountains mark the only major mountainous region between the Rocky Mountains and the Appalachians . A portion of the Flint Hills stretches into north @-@ central Oklahoma , and near the state 's eastern border , Cavanal Hill is regarded by the Oklahoma Tourism & Recreation Department as the world 's tallest hill ; at 1 @,@ 999 feet ( 609 m ) , it fails their definition of a mountain by one foot . 

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 The state 's first radio station , WKY in Oklahoma City , signed on in 1920 , followed by KRFU in Bristow , which later on moved to Tulsa and became KVOO in 1927 . In 2006 , there were more than 500 radio stations in Oklahoma broadcasting with various local or nationally owned networks . Five universities in Oklahoma operate non @-@ commercial , public radio stations / networks . 

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 Oklahoma is located in a humid subtropical region . Oklahoma lies in a transition zone between humid continental climate to the north , semi @-@ arid climate to the west , and humid subtropical climate in the central , south and eastern portions of the state . Most of the state lies in an area known as Tornado Alley characterized by frequent interaction between cold , dry air from Canada , warm to hot , dry air from Mexico and the Southwestern U.S. , and warm , moist air from the Gulf of Mexico . The interactions between these three contrasting air currents produces severe weather ( severe thunderstorms , damaging thunderstorm winds , large hail and tornadoes ) with a frequency virtually unseen anywhere else on planet Earth . An average 62 tornadoes strike the state per year — one of the highest rates in the world . 

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 State song : " Oklahoma ! " 
