Using temperature stations designated as part of the “Normals” used by Environment Canada, BC is cooling at -.499C/decade for the last 15 years.
Also, if you use the same data and calculate 5 year trends working backwards from Oct 2012, BC is now 0C which is colder than the last 4 5 year periods. The last time it was colder was 1983 – 1987.
5 year periods around 1960, 1940 and 1925 were warmer than the last 5 years.
Notice how few really cold months there have been recently compared to the past. Is that correct? Or is it part of the process. Or UHI?