Ambient temperatures are normally higher than the UK, the lowest I have ever recorded overnight at the Scunner Calis Weather Station is +4C. Sadly, with that often comes the breeze or wind off the snowy mountains. Using the Scunometer Snow Mountain Wind Chill Factor Patented Conversion SystemTM (2006, revised 2007), I can confirm that +4C in Calis is equal to minus 500C in UK terms.