The WeatherSTEM Unit measures both rainfall and rain rate. Rainfall is the total amount of precipitation for a whole day (24 hours). Rain rate measures how many inches of rain fell each hour. Rain rate gives us a better idea of the type of rain (drizzle, hard rain, etc.). Below is a graph of rainfall and rain rate over a 24-hr period at . Find a partner and discuss what happened. Discuss the differentce between rainfall and rain rate. The rain rate is currently .