According to just-related information, it was an unusual summer across the core of livestock-productions regions.
Summer temperatures across the middle of the nation, including South Dakota, Nebraska, Kansas, and Oklahoma, averaged near or below normal. This was quite a change from past years, and a departure from the decadal trend of hotter readings.
Rainfall was also adequate, if not excess at times (green shades below). This led towards above-normal summer grass quantity and quality.
In fact, the Great Plains experienced the 7th wettest summer (out of 122 years) on record.
However, further south, across much of Texas, summer temperatures averaged above normal along with below-normal rainfall.