fluoridation - the addition of a fluoride to the water supply (to prevent dental decay) fluoridisation, fluoridization. addition - the act of adding one thing to another; the addition of flowers created a pleasing effect; the addition of a leap day every four years. Based on WordNet 3.0, Farlex clipart collection.
1 The annual average temperature in Fairbanks, Alaska, Usa is slightly cold at -2.9 degrees Celsius (26.8 degrees Fahrenheit). 2  There is a range of mean monthly temperatures of 40.3 C (72.5 F) which is a high range.
In summer, the daily low temperature has increased more than the daily high temperature. In Fairbanks, Alaska, the length of the frost-free season has increased from 60â90 days in the early twentieth century to about 120 days a century later.