I have mapped the anomalies in the Environment Canada monthly summaries that have “normals”. The anomalies are calculated from selected stations based on the 1971-2000 average.
The 5C black dot in the top left hand corner represents 5C difference from “normal”. Red dots are warmer than normal. Blue are cooler. And Green are 0.
April was cold. December ended up very cold across the country.
There is an animated gif at the top showing all months of 2013. You may have to refresh this page or click on the gif to get the full effect.