Today's story comes from a long-time viewer. He set up two rain gauges side-by-side but measured a different amount of rain in each. He wanted to know which one is accurate and how to choose a good ...

The rain gauge is one of the oldest weather instruments in history. Discover how its design and uses have transformed over the years.

A standard rain gauge collects liquid in a tube. Meteorologists can easily see how many inches fell. Once temperatures hover ...