Kids or younger reader book. Fantasy genre.

In this book world weather can be controlled by sorcerers, and especially powerful sorcerers can summon dragons. When the sorcerers die the dragons vanish, except in the case of the most powerful sorcerers where their dragon is buried with them. The villain wanted the scales of the blue dragon that belonged to a sorcerer. There were also weather spells that were too destructive and were trapped, including the scarlet snow that made people fall asleep. The villain was holding the main character's parents hostage. The main character can summon a dragon. The main character is going to school to become a meteorologist

Other key words that may or may not be the same story -- Yeti, ball lightning, jar, lab, gardening supply shop

Stories involving dragons tend to be in medieval periods so maybe we can try to extrapolate forward in time a bit. Dragons could be from any mythologies or fictions of your fancy!

For my take, a dragon is a flying fire-breathing giant lizard with the size and toughness of a big building. I believe a critical factor is how tamable dragons are. If not at all, they'd go from something humans fear and run away from, then being hunted for glory and materials, then being protected in conservation areas to prevent going extinct. If they can be fully domesticated (like dogs), they could expedite for warfare, transportation and industrialized metalwork. The most interesting scenario imo is the in-between where they could only be partially trained. Maybe a skilled trainer can get them to behave 80% of the time but there's a low but significant chance that they get agitated and wreck havoc. How do we make use of them while ensuring safety and intervenability?

On the cultural side, we might not have as many myths and legends about dragons anymore. We might find the idea of giant flying fire creatures utterly mundane (phoenixes might be less interesting by relation even if they still don't exist in this universe). What would we mythologize about instead?