CUSTOMER ELECTRICITY USAGE
from "What to Expect in Your 2023 Monthly Electric Bill"
External weather conditions (primarily outdoor temperatures) and to a lesser extent, the hours of daylight, influence usage which varies month to month. Air conditioning drives energy usage in the summer, and heating drives energy usage in the winter (less noteworthy for customers using oil/natural gas as heating fuel). Spring and fall months typically have the lowest usage, given typically moderate temperatures.
Due to this seasonality, a year-to-year comparison of your electric bill will provide a more accurate and comprehensive picture of your usage instead of a month-to-month comparison.