The official new 30 year normals (1981-2010) were released in August 2011.
Here are the monthly normal temperatures for Lincoln for the new 30-year normals (1981-2010) and the old 30-year normals (1971-2001). There is also a comparison between the two time periods. All temperatures are in degrees F.
The latest 30-year normals show the greatest warming to be taking place in the Winter months (with January seeing the most warming) and several of the Summer months show a slight cooling. The annual average temperature for Lincoln warmed 0.5 degrees comparing the new to the old 30-year normals.