I got a note last week from a California resident thinking about moving to New Mexico. She had a lot of great questions, including wanting to know more about this “monsoon” thing. I tried to explain that it’s not a big massive raining all the time in all the places sort of thing. Here’s the data:
In Bernalillo County, where I live, we’ve got 16 volunteer weather stations that have reported in to the COCORAHS network every day this month. The mean/median (essentially the same) is 1.1 inch (28 mm). Half the reports fall between 0.7 and 1.4 inch (18 and 36 mm). Max: 2.1 inch (53 mm). Min: 0.4 inch (10 mm).
That’s the spatial variability that happens when one small storm cell after another rakes across town. Some hit the rain gauge. Some don’t.