MIKE MOSS SAYS:       Maredith,     I can't think of a handy resource for statewide average temperatures broken into maxima and minima. There is, however, a site managed by the National Climatic Data Center where you can query monthly overall average temperatures for the state. To do so, try out the resources at

http://lwf.ncdc.noaa.gov/oa/climate/research/cag3/nc.html

Also, the State Climate Office of North carolina has a nice overview page on our climate that includes links to contour maps showing monthy and yearly average highs and lows for the sate. You might be able to do a little "visual averaging" using the maps that may (or may not) suit your purpose. See

http://www.nc-climate.ncsu.edu/climate/ncclimate.html

Hope that helps!