It is common for a weathercast to include the high and low temperature for the day. Terms that are not heard as much are the record low maximum and the record high minimum. These are cases where the high temperature is unusually cold or when the low temperature is unusually warm. A record low maximum is set when the high temperature is the lowest high temperature recorded for that date. A record high minimum is set when the low temperature is the highest low temperature recorded for that date. Suppose a location typically has a high temperature of 95 degrees for July 15th. There is a recording of all the high temperatures for July 15th going back 100 years for example for that location. Suppose next year that the high temperature is only 68 degrees on July 15th and a high temperature has never been this low for this date. This temperature represents a record low maximum. Suppose a location typically has a low temperature of 45 degrees for March 15th. There is a recording of all the low temperatures for March 15th going back 100 years for example for that location. Suppose next year that the low temperature is 62 degrees on July 15th and a low temperature has never been this high for this date. This temperature represents a record high minimum. |