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California Traffic Volume

Vehicle miles traveled, latest August 2026 (preliminary)

August 2026
29.2 billion
vehicle miles
Change from a year earlier
+0.4%
Last 12 months
330.5 billion
+1.3% from the year before
Rank among states
#1
By vehicle miles traveled

Vehicle miles by month

Millions of miles

California vehicle miles traveled by month, millions

Monthly travel

Swipe the table sideways to see more columns.

MonthVehicle milesA year earlierChangeStations
August 2026preliminary29.2 billion29.1 billion+0.4%83
July 202630.8 billion31.1 billion-0.8%51
June 202629.5 billion29.2 billion+0.9%91
May 202629.3 billion29.3 billion-0.1%112
April 202628.2 billion28.4 billion-0.8%94
March 202628.2 billion27.3 billion+3.5%108
February 202625.2 billion24.8 billion+1.7%113
January 202627.2 billion27.1 billion+0.2%116
December 202525.2 billion25 billion+0.8%120
November 202524.5 billion24.1 billion+1.5%65
October 202526.7 billion26.4 billion+1.1%88
September 202526.6 billion26.4 billion+0.7%98
August 202528.6 billion28.3 billion+1.3%121
July 202530.5 billion30.1 billion+1.3%113
June 202528.7 billion28.5 billion+0.9%120
May 202528.8 billion28.6 billion+0.8%121
April 202528 billion27.5 billion+1.6%117
March 202526.9 billion26.6 billion+1.2%127
February 202524.4 billion23.9 billion+2.2%127
January 202526.7 billion26.1 billion+2.2%122
December 202424.5 billion23.8 billion+3.0%117
November 202423.7 billion24.2 billion-2.2%75
October 202427.7 billion27.3 billion+1.3%99
September 202427.6 billion27.5 billion+0.3%86
August 202429.3 billion28.9 billion+1.5%122
July 202430.3 billion30 billion+0.9%127
June 202428.7 billion28.9 billion-0.7%84
May 202427.9 billion27.6 billion+0.9%103
April 202426.3 billion26.1 billion+0.8%108
March 202426 billion25.5 billion+1.7%86
February 202422.7 billion22.6 billion+0.4%101
January 202425.3 billion23.5 billion+7.6%64
December 202325.5 billion25.2 billion+1.3%68
November 202325.3 billion24.9 billion+1.7%93
October 202327.1 billion26.7 billion+1.5%103
September 202327.3 billion26.9 billion+1.6%105

Vehicle miles traveled are FHWA estimates built from about 5,000 continuous traffic counting stations that states operate, expanded to all public roads. The latest month is preliminary and is revised in the next month's report; percent changes compare the same month a year earlier. Where a state reported no stations, FHWA estimates its travel from nearby states or the national trend.

Traffic crashes in California · Bridge conditions in California

Source: Federal Highway Administration, Traffic Volume Trends, Table 5 · Last updated 08/01/2026