Unusual conditions today - overcast, with a westerly breeze, but also cold - just 0.2, dew -1.4. The overnight low was -0.1, so just scraped an official air frost, and a penetrating one at that due to the wind. Yesterday's high was 4.8, a genuinely cold day.
(Last year, FWIW, we only had 9 days with a max below 5C from the extended November to March winter period)