The 12th of December was the day that storm Billie reached it's peak intensity at the MILK weather station in Kleinmachnow. The peak gusts registered was 72.4km/h between 2 and 2:30pm. The temperature ranged from 3.4 to 10.1C. The mean was 6.9C. There was 3.6l/m2 in 24 hours and the dominant wind direction was S.