Greatest snowfall on January 18 in Ottawa history.
A total of 19 cm of snow fell at the Ottawa Airport between Saturday afternoon and early Sunday morning.
The 14.3 cm of snow that fell at the Ottawa Airport on Saturday set a record for greatest snowfall on January 18 in Ottawa history. The previous record was 10.2 cm of snow set on January 18, 1978.
Thanks to Clay Olson for this link