| Past Wisconsin ClimateYour link to sources of long-term climate data from observing stations around Wisconsin ranging from decades to more than one century, thereby helping provide an indication of climate variability and long-term climate trends across the state. 
 Wisconsin Climate Stations 
             Background The State Climatology Office has a collection of climate data for 
            the state of Wisconsin that extends back into the 19th century. 
            Weather observations have been made in Wisconsin for approximately 
            180 years, starting with those made by the U.S. Army post surgeons 
            at Fort Howard (Green Bay), Fort Crawford (Prairie du Chien) and 
            Fort Winnebago (Portage) in the 1820s. Beginning in 1870, the U.S. 
            Army Signal Service operated a network of stations, which was the 
            forerunner to the National Weather Service. The network stations in 
            Wisconsin included Milwaukee, Madison and Green Bay. These stations 
            evolved into the first order stations of the US Weather Bureau at 
            the turn of the 20th century. Originally they were city offices, but 
            moved to the airports following World War II. With modernization of 
            the National Weather Service in the 1990s, automatic weather 
            stations are found at these metropolitan airports along with other 
            smaller airports. These stations typically provide hourly weather 
            data oriented toward aviation interests, to include temperature, 
            humidity, precipitation, wind speed/direction and air pressure. A 
            more extensive network of stations maintained by cooperative 
            observers became established by 1891 when the US Weather Bureau 
            continues across the state. This network is primarily responsible 
            for collecting daily weather data for agricultural and 
            climatological purposes. Currently, nearly 200 stations provide 
            maximum and minimum temperature readings along with precipitation 
            data on a daily basis. List of 
            Wisconsin Weather Stations by County Additional questions concerning finding data?Check  
            Your Guide to Wisconsin
Weather and Climate Data
 
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