The area near Lake Superior in the Minnesota Arrowhead region experiences weather unique from the rest of the state. Coteau des Prairies can heat cities to the north of it similar to how places in the The summer months of June, July, August, and September account for nearly half of the annual precipitation total across the state of Minnesota. Minnesota has a late but intense spring, a summer of water sports, an autumn of brilliantly colored leaves, and a long winter with outdoor sports and activities. Paul were kept by the St. Paul Signal Service in that city from January 1871 to December 1890, the Minneapolis Weather Bureau from January 1891 to 8 April 1938, and at KMSP since April 9, 1938. As this happens much of the Midwest starts to experience As spring progresses, the jet stream starts to push storm systems farther to the north, and southern Minnesota becomes more prone to severe thunderstorms and tornadoes.With the exception of areas along the shores of Lake Superior, winds in Minnesota generally prevail from the north and northwest in the winter, and south and southeast in the summer.Minnesota is also prone to both river flooding and localized flash flooding by extended periods of heavy late-spring and summer rainfall. A Minnesota's winters are the setting of several television programs and Mean monthly maxima and minima (i.e. The During a Minnesota summer, heat and humidity predominate in the south, while warm and less humid conditions are generally present in the north. This leads to quicker changes in weather patterns and increasingly strong storm systems. Minnesota occasionally gets breaks from the polar and arctic air when a Winter precipitation comes in a few different forms. The moderating effect of Lake Superior keeps the surrounding area relatively cooler in the summer and warmer Snow is the main form of precipitation, but freezing rain, ice, sleet and sometimes even rain are all possible during the winter months. But while Minnesota's warm summers provide its natives and tourists with a variety of outdoor activities, the state is known for its winters. By late October and November atmospheric dynamics are generally in place to allow storm systems to become very intense. Minnesota's location in the Upper Midwest allows it to experience some of the widest variety of weather in the United States, with each of the four seasons having its own distinct characteristics. For more information, see Mean monthly maxima and minima (i.e., the highest and lowest temperature readings during an entire month or year) calculated based on data at said location from 1981 to 2010.Official records for Minneapolis/St. With summer-time heat still prevalent in the southern U.S. and colder air quickly taking hold in Canada, Minnesota can be affected by wide temperature swings in short periods of time. As winter nears its end, the sun rises higher in the sky and temperatures begin to moderate. Minnesota's climate has done much to shape the image of the state. Snow is the main form of winter precipitation, but In summer, heat and humidity predominate in the south, while warm and less humid conditions are generally present in the north. As with many other Midwestern states, winter in Minnesota is characterized by cold (below freezing) temperatures and snowfall. A main feature of summer weather in Minnesota and the Midwestern United States as a whole is the weakening of the jet stream, leading to slower movement of air masses, a general increase in the stability of temperatures, and less wind. Instead of forming in the north and dropping south, these low pressure systems form in the Spring is a time of major transition in Minnesota. The Lake Superior moderates the climate of those parts of Minnesota's Arrowhead Region near the shore. The state has produced To many outsiders, Minnesota's winters appear to be cold and inhospitable.