Thanks, Karen. I've never noticed the calendar on Weather Underground. I like to use Weather Underground's Trip Planner feature for each city. See: Trip Planner . You specify a range of dates for each city and it gives you lots of information and averages for those dates in each year back to 1996. Seeing all those years helps me avoid relying on data from an atypically warm or cold month. Here's what you would see for a search on Sydney from Nov. 14 - 18. Trip Planner: Sydney, Nov. 14 - 18 . If you click on View Historical Calendars, you'll get to Karen's calendars.