blizzards sometimes occurring, as in 2011. There are many sunny but cold days in winter. The average winter high from December through March is about 34 °F (1.1 °C), with January and February being the coldest months; a polar vortex occurred in January 2019. Spring and autumn are mild, short seasons. Dew point temperatures in the summer range from an average of 56 °F (13.3 °C) in June to 62 °F (16.7 °C) in July. Like all Chicago suburbs, Buffalo Grove lies within USDA plant hardiness zone 5b. Demographics Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race. As of the 2020 Census, Buffalo Grove has a population of 43,212, a 4.1 percent increase, with 1,716 more people than the 2010 United States Census. Originally incorporated with 164 people, Buffalo Grove experienced a population boom during its first few decades because of the suburban craze following World War II and the Korean War. According to 2020 US Census Bureau data, the population of Buffalo Grove was 72.2% White (67.9% non-Hispanic White), 21% Asians, 1.6% African American, 0.2% American Indian or Alaska Native, 0.1% Native Hawaiian or Other Pacific Islander, and 2.8% from two or more races. Hispanic or Latino of any race were 4.92% of the population. Hispanics of any race made up 6.8% of the village's population. The educational attainment of Buffalo Grove citizens were 97.7% graduating high school, 6.3% having an associate degree, 38.1% having a bachelor's degree, and 28% having a master's degree or professional degree. The median property value for owner-occupied houses was $332,300. Median household earnings were $115,951; men's median earnings were $92,984; women's median earnings were $66,705. The poverty rate was 3.4%. Like many northwest suburbs, a large Jewish population resides in Buffalo Grove. Jewish immigrants in the 20th century moved from Germany and East Europe to Chicago, and many enjoyed economic mobility throughout the first half of the 20th century. The German immigrants tended towards Reform Judaism in America while the Russian and Hungarian Empire immigrants usually practiced Orthodox Judaism because they stuck with traditions from home. Despite Jewish success in Chicago, the younger generation left for the suburbs. Vacant land, reasonably priced housing, and a desire for single-family housing attracted many. Their high income and improved mobility from the automobile