Lowest December Temperatures in Boonton

A list of the lowest temperatures ever recorded in the month of December in Boonton, New Jersey from 1893–2024.
What's the coldest it has ever gotten in Boonton in December?
The coldest December temperature in Boonton, New Jersey history was -21 °F which occurred on December 30, 1917.
Rank Temperature Date
1 -21 °F December 30, 1917
2 -19 °F December 31, 1917
3 -10 °F December 30, 1933
4 -8 °F December 31, 1933
5 -7 °F December 28, 1950
5 -7 °F December 18, 1919
7 -6 °F December 26, 1980
7 -6 °F December 29, 1950
7 -6 °F December 27, 1948
7 -6 °F December 29, 1933
11 -5 °F December 31, 1963
12 -4 °F December 21, 1942
12 -4 °F December 16, 1917
12 -4 °F December 28, 1896
15 -3 °F December 25, 1980
15 -3 °F December 28, 1948
15 -3 °F December 7, 1926
15 -3 °F December 19, 1919
19 -2 °F December 24, 1989
19 -2 °F December 20, 1942
19 -2 °F December 28, 1933