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March temperatures in America's major cities range from average lows that are below freezing to highs well above 70 degrees Fahrenheit (21 degrees Celsius). The coldest US cities in March include Buffalo, Milwaukee, Detroit, Minneapolis and Rochester.
Early March weather can be all over the place. In 2016 in the first 15 days of the month the daily high ranged any where from 82 down to 59. Overnight lows ~ 64 down to 39. 5 days had rain at least part of the time. 2015 ~ highs 73 to 46, lows 62 down to 32. 6 days with rain. 2014 ~ highs 77 to 41, lows 51 down to 32. 6 days with rain.