In the latter case (in the absence of added cobalt) the incidentally produced 60 Co is largely the result of multiple stages of neutron activation of iron isotopes in the reactor's steel structures via the creation of 59
Florida: Annual Weather Averages. July is the hottest month in Florida with an average temperature of 28Â°C (82Â°F) and the coldest is January at 16Â°C (61Â°F) with the most daily sunshine hours at 10 in July. The best month to swim in the sea is in July when the average sea temperature is 29Â°C (84Â°F). Loading weather data.
The overall average temperature in December is 16Â°C, which is the same as in January and February, the other âwinterâ months. Swimming is still very much possible in Florida in December thoughâthe sea temperature averages 25Â°C now, which is amazingly warm. December is characterised by its relatively short day lengths. December 21 is the shortest day of the year, with 10.21 daylight hoursâwhich is still quite high.