Almost 13.6km but we live on a hill, so I capitulated after 13,59km (and I promised myself 12km today, so I already had fullfilled my mission). And I was lucky: during the time I was outside, I received some drops of rain, but nothing to be scared of actually. When I arrived in our flat and looked outside, I saw the rain falling like it was the apocalyps (again!) so I feel pretty happy!
Here you get the statistics from my run: not very fast but more ups than down (how is it possible, when you know that the last hundred meters after I stopped the clock are uphills?)