I was wrong
Carol Jensen (Fri, 07 Oct 2005 02:24:59 PDT)

I got confused by the average, while I was thinking of maximum. Here is the data for Copenhagen, an hour north of me:

January February March April May June July August September
31.3 31.3 34.3 42.4 52.0 59.7 62.8 61.9 55.9

October November December Year
47.8 39.4 34.3 46.0

Carol