It's been over a week since I ran. When I was in my 40s and ran marathons, it took me about as long to come back from a layoff as the layoff was. Based on that I will need this week to get back to where I was. However, I'm older now and probably need more time to come back. So, for now, I'm assuming I'll need two weeks to come back. That's this week and next week. So, today's short run is the beginning of the comeback.
The daytime temperature was in the mid to high 20s (F) when I ran. I could have pushed myself to do another half-mile, but since I'm planning on two weeks for the comeback, I kept today's run/walk to 1.5 miles. This was my first run of 2013.