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Politics : Liberalism: Do You Agree We've Had Enough of It?
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To: locogringo who wrote (185664)10/13/2015 11:38:10 AM
From: tonto1 Recommendation

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weatherguru

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In Wisconsin, we have always called the warm days Indian Summer. Kenneth experienced those days while living in Minnesota.

September 28th is the median date of the first frost in Wisconsin for all 118 cooperative weather stations during the last 30 years and for Medford, New London, and Madison combined for the last 100 years. First frosts have occurred as early as August 30th in Medford (1915 and 1931), September 10th in New London (1917), and September 12th at Truax Field in Madison (1955). First frosts have occurred as late as October 19th in Medford (1938), October 24th in New London (1911), and November 12th when the weather station was on Bascom Hill in Madison (1946). However, about two-thirds of first frosts occurred in the three weeks between September 20th and October 11th.

Given this wide variation in first frost dates, Indian summer days in the last 100 years have occurred as early as August 31st and as late as November 19th. However, Indian summer is most frequent from the end of September through the first three weeks of October. My data showed October 14th to have the greatest frequency of Indian summer weather, with peak frequencies during the first few days of October as well as mid-October. During these peaks, Indian summer weather occurs 25 percent of the time or more frequently.
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