MCMXCIVRS
More toys than space
If you want a rally in Calgary, the Stampede grounds would be out for the traditional July dates as that is when the Stampede itself is held. With the recent decision to move away from the traditional dates this is workable. Later towards the end of July might work after the show is packed up and cleared out. June could work, but the weather can still be a crap shoot for cool and wet conditions. Mid summer is generally pretty good and seldom overly hot, typically 25-30 C (75-85 F) in the daytime and cool at night. Lots of great day rides out of here too (both highway and GS suitable) with the mountains just an hour to the west.