The 14.3-cents average price for a KWH recorded this June is about 4.4 percent higher than that previous record. ype=node title=Average Price for a KWH of Electricity. Typically, the cost of electricity peaks in summer, declines in fall, and hits its lowest point of the year during winter. In each of the first six months of this year, the average price for a KWH hour of electricity has hit a record for that month.