The stations on the map are uniformely distributed, and the temperature trend is a clear representation of the climate status of the region.
Maine has warmed at a rate of 1.134º Farenheit in 104 years, about 0.113º F per decade. The amount of warming observed during the 20th Century is +0.63º C - about the claimed rise in global temperature since 1880. The decade trend is 0.063º C, so it would take another 100 years to rise up to those 0.63º C observed during the past century, and about 500 years to increase to 3.15º C (less than those 5.8º C prophesized by IPCC's worst scenario model).
Global warming means there is an overall warming everywhere in the world, but there must be a reason for the cooling in some regions - reason that has not been explained by any climate model. As CO2 is blamed for the temperature increase and, as CO2 has increased steadily, there shouldn't be any cooling anywhere. As we see cooling in many places around the world, the relation between CO2 and temperature increase is a false one.
Furthermore, as the relation between CO2 and temperature is derived from computer models, these climatic models are not an accurate image of the climatic system, and they cannot give an accurate prediction of the future climate.