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 Jan 28, 2026
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December CDM Ratings
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Fireside Chatt: Here are select Nielsen Audio Continuous Diary Measurement (CDM) ratings for December 2025 (three-month rolling average, 9/18-12/10) compared with October and November. Ranks (in parentheses) are among subscribers. Unless otherwise noted, all figures are Persons 12+, Monday-Sunday, 6am-midnight.

Cumulus is no longer a subscriber in diary markets.

Chattanooga, TN
(Market 93)

WUSY Audacy
8.0 (3) - 9.6 (1) - 11.5 (1)
Largest share since July 2024.
WUUQ Bahakel Classic Country
2.9 (7t) - 3.6 (6t) - 3.3 (6)
WOGT Cumulus 
2.5 (10t) - 2.4 (9t) - N/A
Huntsville, AL
(99)          

WDRM iHeartMedia
6.7 (1) - 6.5 (1) - 7.4 (1)
WWFF Cumulus
1.8 (11) - 1.6 (11t) - N/A

 

 

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