In principle, arbitrarily far. The velocity decreases with the distance because the attractive gravitational acceleration has to match the centrifugal one, $$ \frac{GM_\text{Earth}}{R^2} = \frac{v^2}{R},\quad v = \sqrt{\frac{GM}{R}} $$ for a circular orbit. So the velocity decreases with the distance as a power law but it never gets zero.
Whitby: Annual Weather Averages. The most daily sunshine hours in Whitby are 9 in June. The best month to swim in the sea is in August when the average sea temperature is 16Â°C (61Â°F).he most daily sunshine hours in Whitby are 9 in June. The best month to swim in the sea is in August when the average sea temperature is 16Â°C (61Â°F).
Late May and early June are alive with colour and temperatures usually range from 8 to 22 degrees C (46 to 71 degrees F). Summer is hot, but rarely humid. We wear short sleeves. Daytime temperatures are usually in the 20s (70s) and can go as high as 34 degrees C (93 degrees F). Autumn is clear and bright. September afternoons can be quite warm, evenings cool. Temperatures range from 8 to 22 degrees C (46 to 71 degrees F).