This is the exact same way you would normally find the darkest parts of the image when you're removing any color casts from the shadow areas, but now, thanks to the Difference blend mode, these darkest areas represent the areas closest to midtone gray.
The warmest sea in Key Largo in March is 26Â°C/79Â°F, and the coldest sea temperature in March is 22Â°C/72Â°F. Average water temperature in Key Largo in March is 24Â°C/75Â°F. You can choose any other years:
Average Weather in March in North Fort Myers Florida, United States. In North Fort Myers, the month of March is characterized by gradually rising daily high temperatures, with daily highs increasing by 4Â°F, from 78Â°F to 82Â°F over the course of the month, and rarely exceeding 87Â°F or dropping below 69Â°F.