Is it cold in winter in Boston?

No. Boston is located at 42.36 degrees north latitude, with an annual average temperature ranging from -23 degrees to 37 degrees, while Harbin is located at 45.74 degrees north latitude, with an annual average temperature ranging from -37 degrees to 38 degrees. Compared with the two, the lowest body temperature in Harbin is lower, so the winter in Boston is not colder than that in Harbin.