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In July of 2015, the nationwide average price of diesel was lower than the average price of a regular gallon of gasoline for the first time since June 2009. Both gasoline and diesel prices fluctuate throughout the year and from region to region across the country, but diesel prices have been an average of 32 cents higher than the gasoline average from 2009 to 2015.

Monthly Average of Gasoline and Diesel Prices, January 2009 – August 2015

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Fact #889 Dataset

Supporting Information

Monthly Average of Gasoline and Diesel Prices, January 2009 – August 2015 (Dollars per gallon)
DateGasolineDiesel
2009 January1.7882.292
2009 February1.9232.195
2009 March1.9592.092
2009 April2.0492.220
2009 May2.2662.227
2009 June2.6312.529
2009 July2.5272.540
2009 August2.6162.634
2009 September2.5542.626
2009 October2.5512.672
2009 November2.6512.792
2009 December2.6072.745
2010 January2.7152.845
2010 February2.6442.785
2010 March2.7722.915
2010 April2.8483.059
2010 May2.8363.069
2010 June2.7322.948
2010 July2.7292.911
2010 August2.7302.959
2010 September2.7052.946
2010 October2.8013.052
2010 November2.8593.140
2010 December2.9933.243
2011 January3.0953.388
2011 February3.2113.584
2011 March3.5613.905
2011 April3.8004.064
2011 May3.9064.047
2011 June3.6803.933
2011 July3.6503.905
2011 August3.6393.860
2011 September3.6113.837
2011 October3.4483.798
2011 November3.3843.962
2011 December3.2663.861
2012 January3.3803.833
2012 February3.5793.953
2012 March3.8524.127
2012 April3.9004.115
2012 May3.7323.979
2012 June3.5393.759
2012 July3.4393.721
2012 August3.7223.983
2012 September3.8494.120
2012 October3.7464.094
2012 November3.4524.000
2012 December3.3103.961
2013 January3.3193.909
2013 February3.6704.111
2013 March3.7114.068
2013 April3.5703.930
2013 May3.6153.870
2013 June3.6263.849
2013 July3.5913.866
2013 August3.5743.905
2013 September3.5323.961
2013 October3.3443.885
2013 November3.2433.839
2013 December3.2763.882
2014 January3.3133.893
2014 February3.3563.984
2014 March3.5334.001
2014 April3.6613.964
2014 May3.6733.943
2014 June3.6923.906
2014 July3.6113.884
2014 August3.4873.838
2014 September3.4063.792
2014 October3.1713.681
2014 November2.9123.647
2014 December2.5433.411
2015 January2.1162.997
2015 February2.2162.858
2015 March2.4642.897
2015 April2.4692.782
2015 May2.7182.888
2015 June2.8022.873
2015 July2.7942.788

Note: Regular gasoline prices are from areas that sell both conventional and reformulated gasoline. Diesel prices are for ultra-low sulfur diesel (15 parts per million and under).

Source: Energy Information Administration, Monthly Energy Review, August 2015, Table 9.4. Accessed August 31, 2015.

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