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.
Graph of average and extreme temperature ranges by day for Sitka, AK. The warmest month in Sitka Rocky Gutierrez, Sitka, Alaska is August with an average high temperature of 62.9Â°F. The hottest day on record was July 31 1976 when the temperature hit 88.0Â°F. During January the overnight temperature drops to an average of 31.6Â°F with the lowest temperature of 2.1Â°F being recorded on January 9 1975.