Also, incoming port traffic is backed up significantly in the LA area with numerous ships at anchor waiting to unload.
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 1.2% in December compared to the rolling 12 months ending in November. Outbound traffic was down 2.5% compared to the rolling 12 months ending the previous month.
The 2nd graph is the monthly data (with a strong seasonal pattern for imports).
2021 started off incredibly strong for imports - and with the backlog of ships, traffic should remain strong. So, it is disappointing that traffic dipped in December compared to the previous months since there are quite a few ships still waiting to unload.
Imports were down 14% YoY in December, and exports were down 27% YoY.