Example 2: 1  a sporadic form, which is caused by a somatic mutation in each of the two RB genes in a cell. 2  a familial (inherited) form, which is caused by a somatic mutation to one RB gene in a cell that already has one mutant RB gene inherited through the germline from a parent.
For the month of September 2012, Ketchikan reported average temperatures of 53.3Â°F, 0.8Â°F above the long-term mean of 52.5Â°F. The maximum temperature for the month was 67Â°F, which occurred on the 7th, while the minimum (41Â°F) was reported on the 16th.
Key weather averages for Alaska in August. 1  17. 17Â°C max day temperature. 2  7. 7 hours of sunshine per day. 3  14. 14 days with some rainfall. 4  9. 9Â°C min night temperature. 5  16. 16 hours of daylight per day. 6  0. No heat & humidity. 7  64. 64 mm of monthly rainfall. 8  4. 4 (Moderate) UV index. 9  14. 14Â°C sea temperature.