= Cooperative Observer Program
{wiki=Cooperative_Observer_Program}
The Cooperative Observer Program (COOP) is a network of volunteer weather observers in the United States who report on local weather conditions. This program is managed by the National Oceanic and Atmospheric Administration (NOAA) through the National Weather Service (NWS). The primary goal of COOP is to provide a long-term, consistent record of weather data—such as temperature, precipitation, and snowfall—across various locations, particularly in areas where official weather stations are absent or sparse.
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