The record low temperature in Boston's history is -18 °F (-28 °C), recorded on February 9, 1934.
Frasier calls Doris the Morton Salt Girl. Morton Salt is an American food company producing salt for food, water conditioning, industrial, agricultural, and road/highway use. The "Morton"s Salt girl", also known as the "umbrella girl" has a bright yellow dress, is waling in the rain with an oversized umbrella, is carrying an opened and spilling box of salt.