Definitions for "Peak day"
The last day your cervical mucus has the consistency of egg white; usually coincides with the beginning of a temperature spike.
The best time to conceive during the monthly cycle ( ovulation). The woman may look for her vaginal discharge ( cervical mucus) to have the consistency of egg white and for her basal body temperature to begin to spike.
When charting cervical mucus, the last day of fertile mucus is considered your "peak day of fertility."
Keywords:  ldc, gas, hour, maximum, greatest
The maximum daily quantity of gas distributed through the Company's system.
Highest 24-hour usage of gas during a year; for an LDC this usually occurs in the winter heating season
The date an end user's gas requirements reach a maximum level.