Summer (June, July and August):
FORT ST JAMES
VAVENBY (note the significant drop off in rain in the last two years, something’s up with that).
Calgary Airport. Though it has the longest temperature record for Alberta, its precipitation data ends in 1988.
Over All Average:
This is summer averaging all stations beyond those above, including stations with short datasets:
The over all average is looking too much like the number of stations per year and hence this last graph may or may not, mean anything.