Trends in mean annual temperature at 338 Canadian climate stations

dashed lines indicate one or more years with missing or incomplete temperature data

Data are mean annual homogenized surface air temperatures from Vincent et al. (2012), available from Environment and Climate Change Canada (see file Monthly mean of daily mean temperature). Trend line based on least squares regression (note that trend is not a projection of future change). Code available at github.com/patrickbarks/canada-clim.

Data reference: Vincent, L. A., X. L. Wang, E. J. Milewska, H. Wan, F. Yang, and V. Swail (2012) A second generation of homogenized Canadian monthly surface air temperature for climate trend analysis. Journal of Geophysical Research 117(D18110). doi.org/10.1029/2012JD017859