In March, the year-to-year decline in U.S. industrial output of 12.7% was the result of reduced U.S. demand, inventory cutbacks and recessions abroad. To emphasize the size of that decline, it was the largest since the factory sector's wind-down following World War II.

It's the same story as earlier for the U.S. industrial sector. Output fell 1.5% last month, the same as an unrevised 1.5% drop during February. For 2008 and 2007, however, production was revised weaker. Consensus expectations had been for a 0.9% decline in March output.

And the rate of decline has picked up steam. During the last three months, the rate of decline of 18.5% (AR) about matches the quickest of the last few months. Factory sector output alone is off at an 18.7% annual rate during the last three months versus a full-year drop of 3.2% during 2008.

The downturn in the housing market continued to lower output of construction supplies which fell 2.7% last month and at a 30.0% annual rate during the last three. Output of consumer goods overall fell 0.4% last month and at a 12.5% rate since so far this year. Production of autos fell at a 37.3% rate while furniture output fell at a 21.9% rate so far this year after the 10.5% drop during all of 2008. Apparel output actually posted a modest March increase but it's off at a 16.5% rate so far in 2009. Production of business equipment continued lower last month by 2.4% and at a 27.6% rate for the year.

Pain has come to an area which previously was immune. Industrial production in the high-tech sector fell another 3.1% last month and at a 23.8% rate during the last three. That follows a downwardly revised 11.4% increase during all of last year. Less high tech, overall industrial production fell 1.5% during March and the annual rate of change of -18.5% was near the weakest since 1975.

Outside of the both the auto and the high tech sectors, total factory production fell 1.5% last month and the three-month annual rate of decline remained more than firm at -16.8%.

Excess capacity grew even further last month. Capacity utilization fell to 69.3%, a record low for the series which dates to 1966. Utilization in the factory sector dropped even harder to 65.8% from a peak near 80% back in 2007. The latest rate was a record low since WW II. Growth in the total productive capacity of the factory sector has slowed to 0.5% (y/y) and the growth during the last two years was revised down.

The industrial production data are available in Haver's USECON database.