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The climate of Delhi is monsoon-influenced humid subtropical (Köppen climate classification ''Cwa'') bordering semi-arid, with high variation between summer and winter temperatures and precipitation. Delhi's version of a humid subtropical climate is markedly different from many other humid subtropical cities such as Sao Paulo, Tokyo and Brisbane in that the city features dust storms (something more commonly seen in a desert climate), has relatively dry winters and has a prolonged spell of very hot weather, causing it to be also classified as semi-arid region.〔(【引用サイトリンク】url=http://weatherspark.com/averages/33934/4/15/New-Delhi-India )〕 Summers start in early April and peak in May, with average temperatures near 32 °C (90 °F), although occasional heat waves can result in highs close to 45 °C (114 °F) on some days and therefore higher apparent temperature. The monsoon starts in late June and lasts until mid-September, with about 797.3 mm (31.5 inches)〔(【引用サイトリンク】 Climatological Table )〕 of rain. The average temperatures are around 29 °C (85 °F), although they can vary from around 25 °C (78 °F) on rainy days to 32 °C (90 °F) during dry spells. The monsoons recede in late September, and the post-monsoon season continues till late October, with average temperatures sliding from 29 °C (85 °F) to 21 °C (71 °F). Winter starts in November and peaks in January, with average temperatures around 12–13 °C (54–55 °F). Although winters are generally mild, Delhi's proximity to the Himalayas results in cold waves leading to lower apparent temperature due to wind chill. Delhi is notorious for its heavy fogs during the winter season. In December, reduced visibility leads to disruption of road, air and rail traffic. They end in early February, and are followed by a short spring until the onset of the summer. Extreme temperatures have ranged from −2.2 °C to 48.4 °C.〔(【引用サイトリンク】url=http://www.imdpune.gov.in/Temp_Extremes/histext2010.pdf )〕 ==Overview of Seasonal Distribution== * Summer: April, May, June; Hot to very hot; Very low to moderate humidity; Low precipitation * Monsoon (Rainy): July, August, September; Hot, Pleasant during rains; High to very high humidity; Heavy precipitation * Autumn: October, November; Warm days, Cool nights, Pleasant; Low humidity; Low precipitation * Winter: December, January; Cool to Cold; Moderate humidity; Low precipitation * Spring: February, March; Warm days, Cool nights, Pleasant; Low to moderate humidity; Moderate precipitation 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「Climate of Delhi」の詳細全文を読む スポンサード リンク
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