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).
1 Climate Highlights â June.  The average temperature for the contiguous U.S. during June was 71.2Â°F, which is 2.0Â°F above the 20th century average. The June temperatures contributed to a record-warm first half of the year and the warmest 12-month period the nation has experienced since recordkeeping began in 1895.