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Illinois' ecology is in a land area of 56,400 square miles (146,000 km 2); the state is 385 miles (620 km) long and 218 miles (351 km) wide and is located between latitude: 36.9540° to 42.4951° N, and longitude: 87.3840° to 91.4244° W, [1] with primarily a humid continental climate.
Shortly after in 1996, area code 773 was created for the residential parts of the city of Chicago, while downtown kept area code 312. Area code 847 exhausted its numbers quickly, so that an overlay area code, 224, was implemented in 1996 for relief. However, mandatory ten-digit dialing was not in effect until 2002. In March 2007, an overlay ...
Both sites have served in the past as the official observation location, the latter being the current official station. 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.
Köppen climate types of Illinois (with counties overlaid), using 1991-2020 climate normals. The Climate of Illinois describes the weather conditions, and extremes, noted within the state of Illinois, United States, over time. Because of its nearly 400-mile (640 km) length and mid-continental location, Illinois has a widely varying climate.
Farther inland, a series of moraines surrounds the Chicago Plain. This surrounding area is hilly and higher than the Chicago Plain. Past the moraines, the land flattens out again, but is interspersed with a few deep river valleys such as the Illinois River, Fox River, Des Plaines River, and Kankakee River. Here you may find rock cliffs and rock ...
This is more than any other location since Burlington, Iowa, set record highs for 14 days during the Dust Bowl in the 1930s. Phoenix's signature mister Climate types in the US: Phoenix vs. Chicago
On October 7, 2007, area code 331 began overlaying area code 630, making ten-digit dialing mandatory in the area. The Illinois side of the Chicago area–312/773/872, 708, 847/224, 630/331 and portions of 815/779–is one of the largest local calling areas in the United States; with few exceptions, no long-distance charges are applied from one ...
According to the Köppen climate classification system, Mount Prospect lies within the Humid continental climate zone (or Dfa) in the warm summer type. The village experiences warm to hot and humid summers and frigid, snowy winters. The village lies within U.S.D.A Hardiness zone 5b, along the fringe of zone 6a. [5]