Sydneysiders are about to finish off their warmest winter on record with another mostly sunny week. This winter has been strangely warm in Sydney with more days above 20 degrees than below the long term winter average of 17 degrees. In fact there have only been 15 days that have stayed below 17 degrees in the three months of winter, most of them in June. At the end of winter the average minimum and maximum temperatures should come out at 10.3 and 19.5 degrees respectively, making it Sydney's warmest winter in over 150 years of records. The mild winter weather has led many people to enjoy heading outdoors a lot more than in typical colder winters. Colds and flus have been less common as people have spent less time in close quarters passing on their illnesses. More people than usual, including this meteorologist, have succeeded avoiding sickness altogether this winter (*touch wood*). The reason for the warmer than usual winter has been less strong cold fronts than usual and a dominance of high pressure over New South Wales. The lack of cold fronts meant that colder air typically stayed south of Sydney. The dominance of high pressure meant that a majority of days were sunny, minimising the number of cold cloudy days. This week will continue the warmer trend of the last few days with all days likely to go beyond 20 degrees. Each day until Thursday will be mostly sunny, with only the chance of a shower or two on Friday morning. Once lunch time hits on Friday the sun will come out, heating the day to 25 degrees and making many office workers wish they had taken the afternoon off. The official transition of the seasons will take place on the weekend, with slightly cooler temperatures in the low twenties. By then many people will have already decided that winter is over and spring has already begun.