On thinking about it I have revised the numbers, it looks to me that that number should be 365 to be multiplied reflecting the amount of days in the year where all the variables would have to fall on in one day. So having said that the odds of breaking the 5 coldest temperatures in one day is: 1 in 6,478,348,728,125, which, to me, is about the same odds as Jane Fonda being the emcee at the Vietnam Veterans Memorial Dinner in Washington DC and AL Gore being honored by the Mensa Society.