A weekly feature of Torah Tidbits to help clarify practical and conceptual aspects of the Jewish Calendar, thereby better fulfilling the mitzva of HaChodesh HaZeh Lachem...
Because of the variability of
Cheshvan and Kislev, Rosh Chodesh Tevet has seven different possibilities.
In order of frequency, they are: SHA-Sun (27.9%), Thu-Fri (18.4%), Mon/Tue
(18.1%), Fri (11.5%), Wed (10.1%), Tue-Wed (10.0%), and the rarest - Monday
(3.9%, this year). Last time Rosh Chodesh Tevet was Monday only was 5741 -
24 years ago.