Milk production in the 23 major milk-producing states totaled 16 billion pounds during May, up 1.5 percent from a year earlier, according to the USDA’s Milk Production report released Friday afternoon.

Across all 50 states, production was up 1.3 percent. 

It was the 16th month in a row that milk production increased on a year-over-year basis. January 2010 was the last time milk production went down compared to the same month a year earlier.

Texas and Colorado had the biggest increases in milk production at 8.8 percent and 6.7 percent, respectively. The nation's No. 1 milk-producing state, California, was up 3.7 percent. Wisconsin was down 1.8 percent.

Production per cow in the 23 major states averaged 1,899 pounds for May, 6 pounds above May 2010.

The national cow herd continues to grow. According to the report, the number of milk cows on farms in the 23 major states is 8.45 million head, 15,000 head more than April and 103,000 more than May 2010.