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).
The average temperature throughout June is 23Â°C (73Â°F). Average highs rise to 27Â°C (81Â°F) which are mostly experienced in the beginning of the month with the rest of the month seeing daily highs get all the way to 31Â°C (87Â°F). Average lows go down to 18Â°C (64Â°F) which are mostly seen in the middle of the month.