Meridian. Cityscape Climate Boise has a semi-arid continental climate (Köppen climate classification BSk), with four distinct seasons. Boise experiences hot and dry summers with highs reaching nine days in a typical year and on 55 days. Yet because of the aridity, average diurnal temperature variation exceeds in the height of summer. Winters are moderately cold, with a December average of , and lows falling to or below on around one night per year, with some winters having several such readings and most having none at all. Snowfall averages , but typically falls in bouts of or less. Spring and fall are mild. Extremes have ranged from on January 16, 1888, to on July 12, 1898, and July 19, 1960; temperatures have reached and as recently as December 22, 1990, and August 10, 2018, respectively. Precipitation is usually infrequent and light, especially so during the summer months. It averages approximately annually. Tornadoes are rare in Ada County and the Boise area. Since 1950, only twelve tornadoes have been documented within the county, and four of those were during the same storm on August 3, 2000, which is also the most recent date a tornado was documented in the area. None of the tornadoes have been ranked higher than an F1 on the Fujita scale, and no injuries or fatalities were ever documented. Demographics 2020 Census As of the 2020 census, there were 235,684 people residing in the city. 49.8% of population were female persons, 19.9% of persons were under 18 years of age, and 14.6% of persons were 65 years of age and older. The city's racial composition was 88% White, 9.0% Hispanic or Latino, 3.1% Asian, 1.6% Black or African American, 0.7% American Indian or Alaska Native, .02% Native Hawaiian or Other Pacific Islander, and 4.3% Two or more races. 82.6% identified as White alone, not Hispanic or Latino. There were 94,449 households with 2.38 persons per household, and 82.5% of persons lived in the same house as they had the previous year. 10.0% of households used a spoken language other than English at home. 2010 Census As of the census of 2010, there were 205,671 people, 85,704 households, and 50,647 families residing in the city. The population density was . There were 92,700 housing units at an average density of . The city's racial makeup was 89.0% White, 1.5% African American, 0.7% Native American, 3.2% Asian, 0.2% Pacific Islander,