Not necessarily, there's a time for everything.
Really focus on summer training, and the first 1-2 months just build up mileage. Long run once a week, but all the other runs don't have to be the same, change it up a little. You don't have to keep it 60 minutes all the time.
A little over halfway through the summer, start adding in a fartlek or tempo once a week, say Thursday if your long run's Sunday. A four-mile tempo works fine, so does a 7-mile fartlek (3 min on, 2 min off is what we do, you can change up), both with solid warmup and cooldown. Once you start getting closer to the actual season, through in some longer repeats, like a 3x1600 with short rest, or even 1200's.
And don't forget striders.
p.s. I'm assuming you're a high schooler training for XC... if I'm wrong, let me know. And I haven't been as good as I've liked for XC, just as a disclaimer, but I skipped a month and a half of base training this last summer and the program's worked great for some of my teammates (two guys 15:40-ish).