Clacton-on-Sea and relatively dry summers (which also enhances the towns popularity as a sea-side town), but also fairly chilly winter days. For the 1961–1990 observation period, Clacton averaged 103.7 days with at least 1mm of rain annually, and just 24.3 air frosts a year- comparable to south west coastal locations. Clacton's population increased substantially during the 20th century from 7,456 at the 1901 census to 25,000 in the 1960s, 45,065 in 1991 and reaching over 53,000 by 2001. St Osyth's Teacher Training College occupied several buildings in Clacton, mostly along Marine Parade East, until its amalgamation with the North East Essex
F.C. Clacton Cup for the first, and to date only time, but lost 3–1 at home to Southend United. However, after finishing twenty-first out of 22 clubs in 1962–63, they were relegated back to Division One, and after a mid-table finish in 1963–64, returned to the Eastern Counties League. Clacton finished as runners-up in their first season back in the league, a feat repeated in 1974–75, a season in which they again reached the final qualifying round of the FA Cup. They also won the League Cup in 1973–74. The club remained in the Premier Division until the end of the 1991–92