My fancy app on the new phone reckoned 0 with a real feel of -10.
Felt like it as well.
First off the pump froze on the backpack, but started after a short while. It had been in the heated garage with my nice warm RO all night.
Then had to dash off to buy some salt as a step was icy after WFP.
Went back to old trad pole and bacflip and had a good day.
Hampshire.