<P> Argentina is vulnerable and will likely be significantly impacted by climate change . Temperatures have increased in the last century while the observed changes in precipitation are variable, with some areas receiving more and other areas less . These changes have impacted river flow, increased the frequency of extreme weather events, and led to the retreat of glaciers . Based on the projections for both precipitation and temperatures, these climatic events are likely to increase in severity and create new problems associated with climate change in the country . </P> <P> In Argentina, the climate is divided into four, well defined seasons: winter, spring, summer and autumn . </P> <P> In winter (June--August), the northern parts of Argentina are generally warm, the central parts mild, and the southern parts cold with frequent frost and snow . The climate of the southern parts of the country is moderated by the surrounding oceans, resulting in cold weather that is less intense and prolonged than at comparable latitudes in the northern hemisphere . The northern parts of the country have the warmest temperatures, with an average of 14 ° C (57 ° F); the central parts are cooler, with an average of 10 ° C (50 ° F). In the extreme south, mean temperatures are below 4 ° C (39 ° F). At higher altitudes in the Andes, average winter temperatures are below 0 ° C (32 ° F). June and July temperatures are normally similar to each other; however, in August temperatures see a rise of about 2 ° C (4 ° F). </P> <P> Precipitation varies a lot during the winter months . The highest are in the extreme northern part of the Littoral region and northwestern parts of Patagonia, where mean winter precipitation exceeds 250 mm (10 in). Most of the humid Pampas, averages between 75 and 200 mm (3 and 8 in) while in the north, in areas bordering the Andes, it averages less than 10 mm (0.4 in). </P>

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