Exodus 9:18

Such as hath not been in Egypt since the foundation thereof. — Rain, and even hail, are not unknown at the present day in Lower Egypt, though they are, comparatively speaking, rare phenomena. Thunderstorms are especially uncommon, and when they occur are for the most part mild and harmless. A thunderstorm which killed a man in Thevenot’s time (Voyages, vol. i., p. 344) was regarded as most extraordinary, and “spread universal consternation.” There is hail from time to time between November and March; but it very seldom does any considerable damage.