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April 2009

  • Both Tulsa and Fort Smith were slightly cooler and slightly wetter than normal this April.
  • McAlester recorded an all-time record daily low for April: 24 deg F on April 7, 2009. The previous coldest low temperature for any day in April was 25 deg F, which had occurred on 4/2/1962, 4/3/1975, and 4/13/1957.
  • The beginning of April was dry, then conditions became very wet by the end of April.
  • The Neosho River near Commerce went above flood stage 3 times this April. There was also flooding along the Verdigris River near Lenapah, the Caney River near Collinsville and the Poteau River near Panama.
  • La Nina came to an end in April. The Climate Prediction Center issued the Final La Nina Advisory and ENSO neutral conditions are expected through the summer. is the U.S. government's official web portal to all federal, state and local government web resources and services.