The entire lifecycle of the fly typically ranges from 7 to 10 days. In colder weather conditions, flies can survive for much longer periods of time.
The common fly has been traced back to Asia, but it now exists on all continents. It is most commonly found in areas where humans live, specifically where there are large amounts of farm animals as well.
The lifecycle of a fly, which includes metamorphosis from egg and larval stages to adult, takes about 7 to 10 days in warm summer weather. In colder weather periods, it may take up to 2 months for this process to complete. In ideal conditions, there may be up to 12 generations that occur for flies in just one year and even more in regions with tropical climates.