You need to post the NPK ratio of the fertilizer you are using. Or better yet, just what fertilizer you are using. It would also be good to know what you've planted in. (what is your potting media)
New growth at this time of year isn't going to be spectacular. This is a great time for mature plants to be podding up, though. New growth will be slow, and changes in temperature can produce those leaves. They don't exactly look deficient - they just don't look as good as the nice growth that you'd get in March, when the temps start to level off, and we get less variations, and the plant grows rapidly, and evenly.
There is nothing wrong with your feeding schedule, if you are strictly using liquid nutrients.