Also, most of this traffic was prior to the widespread outbreak of COVID-19 in China.
Container traffic gives us an idea about the volume of goods being exported and imported - and usually some hints about the trade report since LA area ports handle about 40% of the nation's container port traffic.
The following graphs are for inbound and outbound traffic at the ports of Los Angeles and Long Beach in TEUs (TEUs: 20-foot equivalent units or 20-foot-long cargo container).
To remove the strong seasonal component for inbound traffic, the first graph shows the rolling 12 month average.
On a rolling 12 month basis, inbound traffic was down 0.3% in January compared to the rolling 12 months ending in December. Outbound traffic was down 0.2% compared to the rolling 12 months ending the previous month.
The 2nd graph is the monthly data (with a strong seasonal pattern for imports).
In general imports both imports and exports have turned down recently - and will probably be negatively impacted by COVID-19 over the next couple of months.