OOP weather

[Dysis]

No: HPFGUIDX 90013

I have been re-reading OOP, and have noticed something that annoys 
me very much. In the beginning of the book, we learn that there is a 
severe drought. It is so hot that the people in Little Whinging 
cannot turn on their sprinklers or waste any water. This "no 
sprinkler" rule is emphasized in the news report that Harry 
overhears. Okay, so we learn that there has been no water for a 
while and that the heat is unbearable.

When Harry is on the Hogwart's Express, he notices some rain clouds 
gathering in the distance. Later, when he gets off the train, Harry 
notices the Thestrals. Their breath forms mist in the chilly night 
air. In the first week of the school year, it rains profusely. Every 
time Harry looks outside, it's drizzling. Even Ron notices this. So 
what's the deal? How come there is such a drastic change in weather? 
True, the months are different (the drought takes place in June/July 
while the rain is in September). But September isn't all that cold. 
Something is not clicking here. JKR mentions the weather a lot in 
this book. I became annoyed with the constant reference to the rainy 
weather. She obviously wants to draw our attention to it. I don't 
have any solid theories about this yet, but could it be LV? Maybe 
he's demonstrating his new powers. Or maybe it could be some wizards 
who were tired of the constant heat. They're not very good theories, 
I know, but I still have to work on them. Any ideas about this?

~Dysis