"Non..." Jacques said, brow furrowed in thought. "Pegasi bring clouds down all the time, usually to fix defective ones before they hurt somepony. Besides, they are made from water brought up from the ground and then return to the ground as rain." He waved a hoof around to indicate the downpour around them "Like this." Thorax looked a bit put off, probably embarrassed. As a creature who presumably only felt relaxed in some hidey hole in the middle of the Badlands where she was likely raised, that wouldn't have been common knowledge to her.