This is what I have been wearing out the last couple of days. It's good down to at least zero fahrenheit in a fifteen mile an hour wind. I proved that out this morning on the mid week two hour run. This setup can probably go to five below, but after that I'd add arm warmers and another thin layer on the legs over the tights.
If the air temperature gets colder than -20F, it's treadmill time. Otherwise it's fair game for a run. In a normal year, we will have a couple of weeks with early morning air temps in the minus teens, especially on clear nights. Once the sun comes out, it might warm up to zero. Fortunately, that doesn't last long.
I have been anxious to feel comfortable again at 6:10-6:20 pace like I had been right before the injury. With all this clothing, mid-6:30s is about where I get due to the restriction of movement. I found out that's only part of the issue when I weighed all my gear a couple of days ago. It came to 4.8 pounds, which is a good bit. I guess I can look at winter running as resistance training.