From the map above you see that the FOX19 viewing area is sandwiched between a 25% and a 10% chance of a white Christmas. The farther north you are in the Tristate - the better your chances are of having a White Christmas.
Official records have been kept @ CVG since 1947, before that at Abbe Observatory in Clifton then before that in Downtown Cincinnati starting November 1, 1870.
There are a variety of ways Christmas can be considered "White". The list below gives the chances of based on official data and some additional Smithsonian Institution data going back to 1858.
WHITE CHRISTMAS STATS
SNOW FALLING 1858 – 2010 (152 YEARS) on Christmas Day
ANY SNOW FALLING ON XMAS DAY
15 TRACE DAYS + 19 MEASURABLE DAYS = 34 DAYS
34/152 = 22.4% CHANCE
MEASURABLE SNOW FALLING (>= 0.1” ON Christmas Day)
19/152 YEARS = 12.5% CHANCE
1” OR GREATER FALLING ON CHRISTMAS DAY
10/152 YEARS = 6.6% CHANCE
2” OR GREATER FALLING ON CHRISTMAS DAY
7/152 YEARS = 4.6% CHANCE
3” OR GREATER FALLING ON CHRISTMAS DAY
3/152 YEARS = 2% CHANCE
MOST SNOW FALLING ON CHRISTMAS DAY 7.0" IN 1890
MOST SNOW FALLING ON CHRISTMAS DAY 7.0" IN 1890
SNOW ON THE GROUND 1948 – 2010 (62 YEARS) On Christmas Day
ANY AMOUNT ON THE GROUND (Trace + Measurable) 23/62 YEARS = 37.1% CHANCE
TRACE ONLY (<1”) 12/62 YEARS 19.4% CHANCE
>= 1” 11/62 YEARS 17.7% CHANCE
>= 2” 7/62 YEARS 11.3% CHANCE
> =3” 6/62 YEARS 9.7% CHANCE
>= 4” 4/62 YEARS 6.5% CHANCE
MOST SNOW ON THE GROUND ON CHRISTMAS DAY = 9" IN 2004
MOST SNOW ON THE GROUND ON CHRISTMAS DAY = 9" IN 2004

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