Try again. Arbitron 101.
For the total month of October, the new WCAA 96.3 had a 0.9. The montly is based on the 4 weeklies (with tiny weighting adjustments) added, then divided by four.
0 + 0 +0 +3.6 = 3.6, divided by 4 = 0.9. Three weeks of zeros (as the station did not exist until 10/8 by Arbitron standards). Three zeros, a 3.6 in week four, gives a 0.9 for the month.
Arbitron policy requires that a station on a new frequency with a new name and a new format be treated as a brand new station, so the trailing numbers of the old WCAA are available under the listing of a discontinued station.
So, for a station that did not exist until the last, exact, week of the October book (and thus got zeros in weeks 1, 2 and 3) to get a 0.9 for the book, it had to have a 3.6 in week 4.
And, for that week, it beat WSKQ.
96.3 did not change calls to WXNY until the 16th of November, which was the first day of the November book.