LOL, that's a good temp for us ... I put them on the line as long as it is somewhat sunny and above freezing temps. A breeze will help even if it is not too sunny or warm. (yesterday it was 55 here, but really windy and they dried great.)
Warning
No formatter is installed for the format bbhtml
Re: when do you stop line drying?
Me too. We keep line drying until there's a fear of them turning into popsicles.