When there is a weather report, how do they decide the coldest place? Is it recorded for every single town and village?

The reason I'm asking is that a vilage in northern England was reported as the coldest place in the UK the other day, yet it was also bloody freezing in Harlow where I was.

Would someone have been recording the temperature in my town as well, or would I have been freezing my b*******s off for nothing?