December CDM Ratings
The Big 6-Oh: 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.
| Dayton, OH (Market 66) |
WHKO Cox 8.5 (1) - 9.4 (1) - 9.0 (1) 60th consecutive No. 1 finish. WZDA iHeartMedia 2.4 (10) - 2.0 (12) - 1.7 (12) |
| Fort Myers, FL (51) |
WWGR Renda 3.8 (6) - 3.9 (8) - 3.7 (5) WHEL Sun 1.3 (19t) - 1.9 (16) - 2.2 (17) WCKT iHeartMedia 1.7 (16t) - 1.6 (17) - 1.8 (18t) |
| Grand Rapids, MI (69) | WBCT iHeartMedia 8.3 (1) - 7.3 (1t) - 7.0 (2) WTNR Cumulus 1.7 (15t) - 1.6 (15t) - N/A Did not subscribe this survey. |
| Tucson, AZ (62) |
KHUD iHeartMedia 2.9 (12) - 3.3 (10) - 3.1 (8t) KIIM Cumulus 6.8 (1) - 7.0 (1t) - N/A Did not subscribe this survey. |
| Tulsa, OK (63) |
KVOO Griffin 4.2 (4t) - 4.9 (3) - 5.5 (3) Largest share since Winter 2015. KXBL Griffin Classic Country 4.2 (4t) - 4.5 (4) - 4.9 (4) KTGX iHeartMedia 2.3 (11) - 2.2 (11) - 1.8 (12) KWEN Zoellner Does not subscribe. |
The Year End Print Special
featuring:
The Year In Music:
Morgan, Ella & More
CMA Radio Winners
Recap The Week
Label Of The Year
Big Loud Turns 10
BMG's Jon Loba:
The Interview
The 2026 Grammy
Voter's Guide
A quick reference guide to the 2026 Grammy Nominees
Inside This Issue:
Exstream: What Is Mainstream Country?
You Never Forget Your First … Cousin
Survey Says: NuVoodoo Research
