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,
Matt Groening Argentine artist Agustina Picasso after a four-year relationship, and became stepfather to her daughter Camila Costantini. In May 2013, Picasso gave birth to Nathaniel Philip Picasso Groening, named after writer Nathanael West. She joked that "his godfather is SpongeBob's creator Stephen Hillenburg". In 2015 Groening's daughters Luna Margaret and India Mia were born. Matt is the brother-in-law of "Hey Arnold!" and "Dinosaur Train" creator, Craig Bartlett, who is married to Groening's sister, Lisa. Arnold used to appear in "Simpsons Illustrated". Groening identifies himself as agnostic and a liberal and has often made campaign contributions to Democratic Party candidates. His first