hiya, we came back from Canada last week having been there for 25 days and spent 4 days in Banff. That equayes to us being there between 30th May & 3rd June. If its any help to you ( I know its not July i'm talking about) it was much chillier than expected for this time of year - we had travelled from Kamloops where it had been in the 30's - def take some warmer clothes and blankets!