There is an old saying that the seeds of summer are planted in the late spring and early summer. Unlike winter where there are a lot of correlations to the world’s ocean temperatures and the upcoming winter patterns, the summer is not as predictable from the same things. However, there is a correlation to wet weather in the middle and latter part of spring helping feed back to a humid, but not as hot summer with more wet weather.
Therefore, if our pattern continues to shift back to a wet one over the next couple of weeks, we may be setting up for a wetter summer again, though not likely as wet as last summer. Also, warmer than average sea-surface temperatures off of the East Coast and in the Gulf of Mexico will also help to feed more moisture to the Eastern United States.