September marks the 20th month in a row that milk production is up on a year-over-year basis.

Milk production in the 23 major dairy states totaled 14.8 billion pounds in September, up 1.9 percent from September 2010, according to USDA’s “Milk Production” report released Wednesday afternoon.

Across all 50 states, milk production was up 1.7 percent.

Even in Texas, where severe heat and drought continued to grip the state, milk production was up a whopping 10.1 percent. In California, the No. 1 milk-producing state, production was up 0.6 percent.

Production per cow in the 23 major states averaged 1,742 pounds for the month, 12 pounds above September 2010.

Meanwhile, the national dairy herd continues to increase. According to the report, the number of milk cows on farms in the 23 major states was 8.47 million head, 101,000 head more than September 2010 and 1,000 head more than August 2011. Across the entire U.S., the number of milk cows stayed the same -- at 9.209 million -- from August through September.

"In our opinion, the report was slightly bullish," says dairy market analyst Dave Kurzawski with FCStone/Downes-O'Neill in Chicago, Ill. "Total milk production was right in line with estimates, but the downward revision of all U.S. milk cows in combination with a steady number of cows month over month has us calling this report just slightly bullish."