93 billion gallons of fresh water falls on Los Angeles every year. (12 inches / y over the whole surface area[1])

They have ~2 million households[2], and a household uses an average of 3,000 g/m or 36,000 g/y/h or about 80 billion gallons / y for all households.

Huge coincidence, that's pretty close to balanced out.

And yet, we shuffle the rainfall to the ocean and pray for snowpack in the mountains and protest Nestle and Almond farmers.

1. https://www.wolframalpha.com/input?i=%28%2812+inches+*+los+a...

2. https://www.wolframalpha.com/input?i=households+in+los+angel...