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Brentwood is a borough in Allegheny County, Pennsylvania, United States, and is part of the Pittsburgh Metro Area. The population was 9,643 at the 2010 census.〔(【引用サイトリンク】 title=Race, Hispanic or Latino, Age, and Housing Occupancy: 2010 Census Redistricting Data (Public Law 94-171) Summary File (QT-PL), Brentwood borough, Pennsylvania )〕 ==Geography and climate== Brentwood is located at (40.374469, -79.976179). According to the United States Census Bureau, the borough has a total area of , all of it land. The borough is located in the Allegheny Plateau region of the United States, and is situated south of the confluence of the Allegheny River and the Monongahela River to form the Ohio River. Due to its position between the Great Lakes and the windward side of the Allegheny Mountains, Brentwood, along with the rest of the region, receives plentiful precipitation which supports lush vegetation. Also, because it is on the windward side of the mountains, it is often cloudy, having 203 cloudy days per year.〔(Cloudiness - Mean Number of Days ). Comparative Climate Data, ''National Climatic Data Center''. 2002. Last accessed January 11, 2007.〕 The winter is particularly cloudy, with only 28 percent sunshine in December and 23 cloudy days.〔〔(Average Percent Possible Sunshine ). Department of Meteorology, 'University of Utah''. 1993. Last accessed January 11, 2007.〕 In the winter, when a northwest flow establishes itself over the Great Lakes, the wind blows from Lake Erie across eastern Ohio and western Pennsylvania. That wind carries moist air from the lake, producing clouds and heavy snow squalls. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Brentwood, Pennsylvania」の詳細全文を読む スポンサード リンク
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