East Kent, the warmest time of the year is July and August, when maximum temperatures average around 21 °C (70 °F). The coolest time of the year is January and February, when minimum temperatures average around 1 °C (34 °F). East Kent's average maximum and minimum temperatures are around 1/2 °C higher than the national average. East Kent's average annual rainfall is about 728 millimetres (29 in), with October to January being the wettest months. The national average annual rainfall is about 838 millimetres (33 in). Demography At the 2011 census, the village had 9,961 residents. There were 4,944 households, of which 43.6% were married couples living together, 13.0% were cohabiting couples; 43.4% of all households were made up of lone individuals. For every 100 females, there were 86.2 males. The age distribution was 6% aged 0–4 years, 13.1% aged 5–15 years, 5.1% aged 16–19 years, 28.2% aged 20–44 years, 26.4% aged 45–64 years and 21.2% aged 65 years and over. The village had a high percentage of residents over 65, compared with the national average of 16.4%. The ethnicity of the village was predominately white, with over 95% of its residents being born in the United Kingdom and other Western European countries. About 61% of residents claimed to be Christian, with less than 1% claiming to be Buddhist, Jewish, Hindu or an alternative religion, while 7.4% did not state their religion, and 28.6% claimed no religious affiliation. Economy At the 2011 UK census, the economic activity of residents in the village aged 16–74 was 31.7% in full-time employment, 14.4% in part-time employment, 10.1% self-employed, 5.7% unemployed, 3.0% students with jobs, 4.3% students without jobs, 18.2% retired, 4.9% looking after home or family, 5.5% permanently sick or disabled and 2.1% economically inactive for other reasons. The percentage of retired people was significantly higher than the national figure of 13.7%. 20.6% of the village's residents aged 16–74 had Level 4 qualification or higher, compared to 27.3% nationwide. According to Office for National Statistics estimates, during the period of April 2001 to March 2002 the average gross weekly income of households in the Birchington-on-Sea electoral wards was £460 (£23,986 per year). The industry of employment of residents in 2011 was 16.1% retail, 17.2% health and social work, 5.8% manufacturing, 12.3% education, 1.3% real estate, 9.6% construction, 4.9% transport and storage, 2.2% communications, 6.7% public administration, 4.3% hotels and restaurants, 3.1% finance, 0.8%