Weather Almanac for August 21st

Weather Almanac for August 21st

Here's a look at normal and record temperatures, sunrise and sunset times, and past weather events for August 21st.

Weather Almanac For 8/21

This Day In Weather History

1977 - 6 vacationers at Lake Mattoon were killed when a tornado hit.  This was the first killer tornado in Illinois during the month of August.  The tornado first touched down in eastern Shelby County near Windsor and moved across Coles County and into Cumberland County.  The tornado was last on the ground near Greenup.  The tornado was embedded in heavy rain, making it hard to see. 

1987 - An amazing round of severe thunderstorms before sunrise affected a seven county area from Peoria northwest to Moline.  The storms produced 90 mph winds and golfball sized hail in parts of the Quad Cities.  Damage was reported to 2,000 cars and hundreds of windows.  $4 million in damage occurred to crops in the area. 

Temperature Information


Champaign-Urbana846399 (1936)44 (1950)
Danville8463103 (1936)40 (1950)
Decatur8664102 (1983)43 (1950)
Effingham8663101 (1983)48 (1953)
Springfield8563104 (1983)44 (1967)

Sunrise/Sunset For 2015

Champaign-Urbana6:10 AM7:42 PM
Danville6:07 AM7:39 PM
Decatur6:13 AM7:44 PM
Effingham6:12 AM7:43 PM
Springfield6:16 AM7:47 PM

Some information gathered from the National Weather Service and other government agencies. Data for averages are based on 1981 to 2010 averages. Record highs are based on different times of record. Here are when records stared for each observation point: Danville; 1895, Decatur; 1893, Effingham; 1951, Springfield; 1879, Urbana; 1888.
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