Daily Archives: April 1, 2024

Most of us understand the meaning of a high and low temperature forecast. More confusing is the meaning of a “chance of rain” expressed as a percentage in a weather forecast.

The National Weather Service calculates a probability of precipitation, or PoP. The PoP describes how likely it is for a measurable amount of rain (at least 0.01 inches) to occur in a given time in the forecast area. Continue reading →