The utility has listed multiple reasons for the sharp rise in the commodity price for natural gas, including wet weather and colder-than-normal temperatures that have led consumers to use more gas in their home heating systems than they normally would.

Source: https://www.sandiegouniontribune.com/business/story/2023-01-12/california-looks-at-ways-to-curb-soaring-natural-gas-bills-for-sdg-e-and-other-consumers