Today is August 1st which marks "pre-marathon" season for me. My July running production was down so I hope to pick it back up in starting in August. Though I stay active and in shape all year it is good to ease off your longer runs for awhile. It does a couple things for me, It makes me anxious and hungry to get back out there and improve. It also helps rest my body from any nagging injuries so that when you do begin training you are fresh and injury free.
So 20-25 miles a week is my off season average but now that August is here and marathon season around the corner I look forward to increasing that!