Gasoline prices averaged $2.953 a gallon in the Chicago-Naperville-Elgin area in April 2018, the U.S. Bureau of Labor Statistics reported today. Assistant Commissioner for Regional Operations Charlene Peiffer noted that area gasoline prices were up 30.0 cents compared to April 2017 when they averaged $2.653 per gallon. Chicago area households paid an average of 15.5 cents per kilowatt-hour (kWh) of electricity in April 2018, up 2.6 percent from April 2017. In April, the average cost of utility (piped) gas was 82.4 cents per therm, lower than its average price of 86.1 cents per therm a year earlier. (Data in this release are not seasonally adjusted; accordingly, over-the-year-analysis is used throughout.)

The $2.953 per gallon Chicago households paid for gasoline in April 2018 was 15.8 cents more than the nationwide average of $2.795. In the previous four years in April (2014-2017), Chicago area gasoline prices surpassed that of the nation, ranging from 13.5 cents to 32.7 cents more. (See chart 1.)

The 15.5 cents per kWh that Chicago households paid for electricity in April 2018 was 15.7 percent higher than the nationwide average cost of 13.4 cents per kWh. In the previous four years (2014-2017) in April, Chicago area electricity costs exceeded the national average, ranging from 6.1 percent to 27.7 percent more. (See chart 2.)

Prices paid by Chicago area consumers for utility (piped) gas, commonly referred to as natural gas, were 82.4 cents per therm in April 2018, 21.1 percent below the national average of $1.044 per therm. In the previous three years in April (2015-2017), Chicago area utility (piped) gas costs were lower than the national average, ranging from 13.9 percent to 19.3 percent less, whereas local area prices in April 2014 were 22.6 percent higher than the national average. (See chart 3.)

The Chicago-Naperville-Elgin, Ill.-Ind.-Wis., core based statistical area consists of Cook, DeKalb, DuPage, Grundy, Kane, Kendall, Lake, McHenry, and Will Counties in Illinois; Jasper, Lake, Newton, and Porter Counties in Indiana; and Kenosha County in Wisconsin.

Historical average energy prices for the U.S. and select metropolitan areas are available at www.bls.gov/regions/midwest/data/averageenergyprices_selectedareas_table.htm

The Consumer Price Index for May 2018 is scheduled to be released on Tuesday, June 12, 2018.

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, Chicago-Naperville-Elgin, IL-IN-WI and the United States, April 2017 – April 2018, not seasonally adjusted

Year and month	Gasoline per gallon		Electricity per kWh		Utility (piped) gas per therm
	Chicago area	United States	Chicago area	United States	Chicago area	United States
2017
April	$2.653	$2.479	$0.151	$0.135	$0.861	$1.000
May	2.538	2.448	0.150	0.137	0.875	1.036
June	2.452	2.400	0.161	0.142	0.890	1.040
July	2.487	2.344	0.160	0.143	0.878	1.031
August	2.556	2.436	0.161	0.142	0.862	1.027
September	2.688	2.688	0.161	0.142	0.847	1.018
October	2.650	2.545	0.136	0.137	0.830	1.020
November	2.848	2.608	0.158	0.136	0.823	1.028
December	2.690	2.521	0.158	0.136	0.854	1.042
2018
January	2.793	2.596	0.162	0.135	0.808	1.048
February	2.697	2.632	0.162	0.135	0.806	1.077
March	2.742	2.631	0.157	0.135	0.811	1.054
April	2.953	2.795	0.155	0.134	0.824	1.044