Folklore has it that if it rains today, it will rain for forty days. Of course, it’s not true. But where does it come from? Googling comes up with a lot of interesting stuff. Wikipedia reckons that the legend was adapted from some kind of previous pagan augury, becuase there are a lot of similar traditions for days in June. might know. He is well-clued up on these things.
It appears that what often happens is that we get weather in ‘batches’, and because the Atlantic jet-stream settles down somewhere around now, it sets the weather pattern for the next six weeks or so. Which is when the schools break up, and we get the summer we remember.
Try: any song or poem, music, nursery rhyme, art about weather (any kind).
Check out: wellies, umbrellas, cagoules.