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What is Seasonal Adjustment?
(pdf)


Seasonal adjustment is a statistical technique which eliminates the influences of weather, holidays, the opening and closing of schools, and other recurring seasonal events from economic time series. This permits easier observation and analysis of cyclical, trend, and other nonseasonal movements in the data. By eliminating seasonal fluctuations, the series becomes smoother and it is easier to compare data from month to month.

The Rhode Island, New England, and US civilian labor force statistics, as well as the Current Employment Statistics survey, produce seasonally adjusted statistics.

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RI Department of Labor and Training
Labor Market Information
Center General Complex
1511 Pontiac Avenue, Cranston, RI 02920

Phone: (401) 462-8740
Fax (401) 462-8766
TTY via RI Relay: 711
10/21/14 MDF
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