Gasoline prices averaged $3.796 a gallon in the San Francisco-Oakland-Hayward area in May 2018, the U.S. Bureau of Labor Statistics reported today. Assistant Commissioner for Regional Operations Richard Holden noted that area gasoline prices were higher than last May when they averaged $3.143 per gallon. San Francisco area households paid an average of 21.1 cents per kilowatt hour (kWh) of electricity in May 2018, similar to the 21.0 cents per kWh paid in May 2017. The average cost of utility (piped) gas at $1.538 per therm in May was less than the $1.609 per therm spent last year. (Data in this release are not seasonally adjusted; accordingly, over-the-year-analysis is used throughout.) 

At $3.796 a gallon, San Francisco area consumers paid 28.1 percent more than the $2.963 national average in May 2018. A year earlier, consumers in the San Francisco area paid 28.4 percent more than the national average for a gallon of gasoline. The local price of a gallon of gasoline has ranged from 12.0 to 30.4 percent above the national average in the month of May during the past five years. (See chart 1.)

The 21.1 cents per kWh San Francisco households paid for electricity in May 2018 was 55.1 percent more than the nationwide average of 13.6 cents per kWh. Last May, electricity costs were 53.3 percent higher in San Francisco compared to the nation. In each of the past five years, prices paid by San Francisco area consumers for electricity exceeded the U.S. average by at least 51.9 percent in the month of May. (See chart 2.)

Prices paid by San Francisco area consumers for utility (piped) gas, commonly referred to as natural gas, were $1.538 per therm, or 46.5 percent above the national average in May 2018 ($1.050 per therm). A year earlier, area consumers paid 55.3 percent more per therm for natural gas compared to the nation. In the past five years, the per therm cost for natural gas in May in the San Francisco area has varied between 31.9 percent and 59.7percent above the U.S. average. (See chart 3.)

The San Francisco-Oakland-Hayward, Calif. metropolitan area consists of Alameda, Contra Costa, Marin, San Francisco, and San Mateo Counties in California.

Technical Note

Average prices are estimated from Consumer Price Index (CPI) data for selected commodity series to support the research and analytic needs of CPI data users. Average prices for electricity, utility (piped) gas, and gasoline are published monthly for the U.S. city average, the 4 regions, 9 divisions, 2 population size classes, 8 region/size-class cross-classifications, and the 23 largest local index areas. For electricity, average prices per kilowatt-hour (kWh) are published. For utility (piped) gas, average prices per therm, are published. For gasoline, the average price per gallon is published. Average prices for commonly available grades of gasoline are published as well as the average price across all grades.

All eligible prices are converted to a price per normalized quantity. These prices are then used to estimate a price for a defined fixed quantity. The average price per kilowatt-hour represents the total bill divided by the kilowatt-hour usage. The total bill is the sum of all items applicable to all consumers appearing on an electricity bill including, but not limited to, variable rates per kWh, fixed costs, taxes, surcharges, and credits. This calculation also applies to the average price per therm for utility (piped) gas.

Information in this release will be made available to sensory impaired individuals upon request. Voice phone: 202-691-5200; Federal Relay Service: 800-877-8339.

Table 1. Average prices for gasoline, electricity, and utility (piped) gas, San Francisco-Oakland-Hayward and the United States, May 2017-May 2018, not seasonally adjusted

Year and month	Gasoline per gallon		Electricity per kWh		Utility (piped) gas per therm
	San Francisco area	United States	San Francisco area	United States	San Francisco area	United States
2017
May	$3.143	$2.448	$0.210	$0.137	$1.609	$1.036
June	3.107	2.400	0.210	0.142	1.602	1.040
July	2.991	2.344	0.210	0.143	1.529	1.031
August	3.023	2.436	0.210	0.142	1.538	1.027
September	3.190	2.688	0.210	0.142	1.484	1.018
October	3.111	2.545	0.210	0.137	1.525	1.020
November	3.230	2.608	0.204	0.136	1.338	1.028
December	3.164	2.521	0.204	0.136	1.372	1.042
2018
January	3.302	2.596	0.205	0.135	1.390	1.048
February	3.428	2.632	0.205	0.135	1.423	1.077
March	3.494	2.631	0.212	0.135	1.339	1.054
April	3.624	2.795	0.205	0.134	1.615	1.044
May	3.796	2.963	0.211	0.136	1.538	1.050