Spring is when you feel like whistling even with a shoe full of slush.
Time to get back in shape. It doesn't really take much time. Maintain focus, be consistent. Start slow, with short distances and not a lot of speed. Increase gradually until finally, sun on the face, the miles just melt away.
Until then - don't you just hate the sore spot between your toes when you start wearing flip-flops again in the spring?