Hottest and Coldest Temperatures Ever in Boston on February 21

On February 21 in Boston, the weather has exhibited a range of extremes over the years. The hottest temperature ever recorded was a scorching 72.0°F in 2018, while the coldest temperature ever recorded was a bone-chilling -0.9°F in 1950. On average, this date experiences a temperature of 34.40°F, with a high of 41.04°F and a low of 27.75°F. In the year 1950, when the record low was set, an interesting news item was that the first ever credit card was introduced, revolutionizing the way people make purchases.