It was the second-highest charting of their singles (peaking at #2) at KHJ:
7/16/65 8 California Girls Beach Boys Capitol
11/17/65 26 The Little Girl I Once Knew Beach Boys Capitol
3/30/66 7 Sloop John B Beach Boys Capitol
8/17/66 9 God Only Knows Beach Boys Capitol
10/12/66 1 Good Vibrations Beach Boys Capitol
7/26/67 9 Heroes And Villains Beach Boys Brother
12/27/67 2 Darlin' Beach Boys Capitol
4/24/68 17 Friends Beach Boys Capitol
7/17/68 3 Do It Again Beach Boys Capitol
12/04/68 13 Bluebirds Over The Mountain Beach Boys Capitol
3/19/69 12 I Can Hear Music Beach Boys Capitol
2/25/70 25 Add Some Music To Your Day Beach Boys Reprise
Again, there's every reason to remember that those numbers mean nothing today and did not mean what we thought they meant (Inigo Montoya is alive, alive) then.
I had to look at this post for awhile to figure out why "I Get Around" and "Help Me, Rhonda", just to name two #1 songs, weren't on your list. Then I realized that it wasn't because they didn't do well in LA. KHJ was still MOR, with personalities like Steve Allen. It should be noted that most acts would be very happy with the Beach Boys musical accomplishments before "California Girls".