Every Seattle Mariners fan knows this fact: Typically, Julio Rodriguez is a slow starter every season. Once the spring chill turns to summer heat, so does his bat. For the first four seasons of his MLB career, his average OPS through the end of May each season has been .716. Far below his career mark, which is flirting with .800. This season, however, he seems to be bucking that trend, coinciding with Seattle starting to get hot right before the temperatures match.