What is the rainiest week in January?

Answer 1

That depends on where in the world you are. In some places there is no rain, like in most deserts. In other places there would be lots of rain. In different parts of the world where it does rain, a different week in January might be rainier than in another one. In another year in the same place, it could be a different week. So there is no answer to the question without a specific place and year.