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Weather data from Midway Airport before July 1, 1942, and after January 16, 1980, and data from O'Hare Airport before January 17, 1980, are not part of the official climate record of Chicago. Here is a list of official weather observation locations for the Chicago office: [ 7 ]
Climate data for Chicago (O'Hare Int'l Airport), 1991–2020 normals, [a] extremes 1871–present [b]Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Record high °F (°C)
Most precipitation from a single tropical storm: 6,433 mm (253.3 in); Commerson, Réunion, during Cyclone Hyacinthe in January 1980. Other severe weather [ edit ]
Under Köppen, Chicago is classified as a humid continental climate (Dfa). Deep within continents, cities like Chicago are defined by huge temperature swings from cold, snowy winters to warm summers.
Average yearly precipitation for Illinois varies from 48 inches or 1,220 mm at the southern tip to 35 inches or 890 mm in the northern portion of the state. Normal annual snowfall exceeds 38 inches or 0.97 m in Chicago, while the southern portion of the state normally receives less than 14 inches or 0.36 m. [1]
Average monthly precipitation (in mm) for selected cities in Asia ; City Country Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ref. Mawsynram: India: 133.0 8.3 15.7 27.4 29.8 26.0 5.7
American Samoa's climate regime is dominated by southeast trade winds. The island dependency is wet, with annual rainfall averaging near 120 inches (3,000 mm) at the airport, with amounts closer to 200 inches (5,100 mm) in other areas. [77] There is a distinct rainy season when tropical cyclones occasionally visit between November and April.
MCDW data is recommended as a data source by libraries and other information providers, such as the University of Chicago Library. [3] Other publications, including annual regional climate data publications, have also cited and used MCDW data. [4] Academic research in meteorology has often cited MCDW data. [5] [6] [7]