This showed that the transforming principle is DNA â and, by extension, a gene is made of DNA. Still, many scientists were slow to accept this clear proof that DNA, not protein, is the genetic molecule.
Tromso: Annual Weather Averages. July is the hottest month in Tromso with an average temperature of 12Â°C (54Â°F) and the coldest is January at -4Â°C (25Â°F) with the most daily sunshine hours at 8 in August. The wettest month is October with an average of 130mm of rain. The best month to swim in the sea is in August when the average sea temperature is 12Â°C (54Â°F).
January sees Oslo at its coldest with a mean temperature of -4.3 Â°C. From January to February the mean daily temperature sits at a blistering -7 Â°C, and back in 1871 Oslo recorded a achingly cold low of -27.9 Â°C. Temperature begin to warm up slightly in March before reaching an average daily high of 16 degrees by May.