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).
Weather in Oslo in July. The average maximum daytime temperature in Oslo in July is a comfortable 21Â°C (70Â°F). There are usually 8 hours of bright sunshine each day, which represents 44% of the 18 hours of daylight. The average sea temperature in and around Oslo in July is 17Â°C (63Â°F). Expect 83mm (3.3 inches) of rainfall across the whole of July with 16 days with some rain falling. Maximum UV levels will be moderate (5 UV index) at midday when the skies are clear. The average night-time temperature is usually a cool 11Â°C (52Â°F).