Springfield, Oregon of Springfield that stated, in part "Yo to Springfield, Oregon – the real Springfield." In April 2012, Groening confirmed to "Smithsonian" magazine that he named the fictional Springfield after Springfield, Oregon. He also confirmed that he intentionally left it a secret to allow people the enjoyment of assuming it was based on their own Springfield. This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above . According to the Köppen Climate Classification system, Springfield has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps. Springfield, Oregon Springfield is a city in Lane County, Oregon,
Springfield (Universal Studios Hollywood) Springfield (Universal Studios Hollywood) Springfield is a themed area at the Universal Studios Hollywood theme park near Los Angeles, California. The area is themed around the fictional town of the same name American animated sitcom, "The Simpsons". It opened on May 13, 2015 adjacent to The Simpsons Ride. Springfield was dedicated on May 13, 2015 with a special "meltdown" at the Springfield Nuclear Power Plant signaling the grand opening, complete with fireworks. On hand for the event were the show's executive producer Al Jean and voice actors Nancy Cartwright (Bart Simpson), Yeardley Smith (Lisa Simpson) and Joe Mantegna (Fat Tony).