I started my running back in the last week of October. For the first 4 weeks (excluding my second run) each time out was a new personal best for pace, distance, or both. I was at the point where I was only walking once over 2.5 miles and expecting to reach "no walking" the following week. These last two weeks I was going backwards, feeling like my legs would fall off if I didn't stop to walk. The number of walks went up and my pace went down. Today, I seem back on track. I went 2 miles before my one walk (I probably could have made it a no-walk run but didn't want to push it too much) and had my pace back under 12 min/mile. The weather today was unusually warm (64 degrees) and I ran in shorts and a short sleeve top. I'm wondering if the warmer temps played a part by helping me loosen up faster and run better.