Roman Numerals are meant for numbers not words. However, since January is the first month the year simply writing "I" followed by the day and year would suffice.
Example: January 1st, 2013 - I/I/MMXIII
I/V
January 20th, 2009 can be written as XX.I.MMIX in Roman numerals.
The date January 8, 2001, is written as VIII.I.MMCI in Roman numerals.
January 1st, 1993 in Roman numerals is written as I.I.MCMXCIII.
I.III.MCMXCIV
I/V
January 20th, 2009 can be written as XX.I.MMIX in Roman numerals.
XXIX-January
The date January 8, 2001, is written as VIII.I.MMCI in Roman numerals.
January 1st, 1993 in Roman numerals is written as I.I.MCMXCIII.
January would be represented with an I. You would write it as I-XI.
I.III.MCMXCIV
I/i/mmxi
It is: I-I-MMXII
In the same order as asked, "MCMLXXVII/I/I" The "/" is just to separate, and is not to deal with the roman numerals in any way.
January 13th 2000 can also be written as 01-13-2000 and in Roman numerals that would be I.XIII.MM
III-I-MCMDI