.

Any chance of rain in phoenix today - congratulate, magnificent

Historically, the official rain gauge for the Phoenix Metropolitan Area PMA has been situated near the center of the city. This is especially true during the monsoon.

The FCD rain gages measure precipitation in millimeters increments of 0. Coupled with mathematical rounding, it is very likely there will be days when precipitation falls across the PMA yet the average rainfall is 0. When this happens it is reflective of either a very light or very isolated precipitation event.

Phoenix, AZ Forecast

Also, please be aware that the rainfall data are only passed through minimal quality control mechanisms. The most common error will be light precip amounts at individual gages when no rain actually occurred.

This is especially true during the monsoon. Coupled with mathematical rounding, it is very likely there will be days when precipitation falls across the PMA yet the average rainfall is 0. To generate the averages, a Monte Carlo simulation is used.

View this post on Instagram

Shared post on Time