Specify location, date, time and temperature.
I.E: Eastern Tijuana, Mexico , November 19th, 9:39pm pst, 17c.
Currently 54F at 3am here. I now haven't experienced a frost for 5 weeks here, not since the first week of December. All that is due to change as of tomorrow though, with a cold front moving in and clear skies at night. I might see 3-4 nights in a row down to 29-30F. Not that it would damage anything. The Queens and Chambeyronia were unscathed from 27.5F back in late November, so I'm not fretting. I'm still expecting the days to warm up to 45-50F during this 'cold' period.
Looks like London