the Canterbury Plains and is therefore slightly drier, with a more continental climate, than nearby Christchurch. There are many vineyards in the area. The warmest month of the year is January with an average high temperature of 23 °C. The coldest month of the year occurs in July, when the average high temperature is 10 °C. Monthly rainfall ranges between an average of 33mm in January to 56mm in July. On January 26, 2021, a maximum temperature of was registered. Demographics Rolleston is described by Statistics New Zealand as a medium urban area, and covers . It had an estimated population of as of with a population density of people per km2. Until 1990 the town had only a few sealed streets and a population of just under 1,000. The current expansion began in the 1990s. Rolleston had a population of 17,532 at the 2018 New Zealand census, an increase of 7,926 people (82.5%) since the 2013 census, and an increase of 12,510 people (249.1%) since the 2006 census. There were 5,622 households. There were 8,679 males and 8,850 females, giving a sex ratio of 0.98 males per female, with 4,539 people (25.9%) aged under 15 years, 3,201 (18.3%) aged 15 to 29, 8,538 (48.7%) aged 30 to 64, and 1,257 (7.2%) aged 65 or older. Ethnicities were 86.1% European/Pākehā, 9.4% Māori, 2.5% Pacific peoples, 8.9% Asian, and 2.7% other ethnicities (totals add to more than 100% since people could identify with multiple ethnicities). The proportion of people born overseas was 23.0%, compared with 27.1% nationally. Although some people objected to giving their religion, 58.1% had no religion, 32.2% were Christian, 1.0% were Hindu, 0.5% were Muslim, 0.6% were Buddhist and 2.2% had other religions. Of those at least 15 years old, 2,721 (20.9%) people had a bachelor or higher degree, and 1,821 (14.0%) people had no formal qualifications. The employment status of those at least 15 was that 8,346 (64.2%) people were employed full-time, 1,824 (14.0%) were part-time, and 315 (2.4%) were unemployed. Education Rolleston has five full primary (year 1–8) schools: Clearview Primary School is a state school with a roll of approximately students. The school opened in February 2010. Lemonwood Grove School is a state school with a roll of approximately students. The school opened in February 2017. Rolleston School is a state school with a roll of approximately students. The school opened in 1893. Rolleston Christian