Paul Hyett wrote:

Not even July 1983?

Hi, Paul,
Mean here at Copley is 17.2C up to this morning, height 253 metres asl,
and there is hotter weather expected this week.
July 1983 was 17.3C at my Low Etherley site, height 155 metres asl and
normally 0.6C higher. July 1983 was 17.7C at Durham University
Observatory, 102 metres asl and normally 1.0C higher.
I know it is always a problem estimating differences, especially in
hilly country like County Durham and with distances from the cool North
Sea, but I am using a few years of obs and experience so I'm reasonably
confident that this July is hotter than 1983.
Sunniest July at Durham was 1955 with 255 hours and we are currently on
250 hours. Sunshine is not so easy to compare as we are using different
types of instruments and the Durham exposure is relatively sheltered,
but I think this will be sunniest after June 1940.
Perhaps someone with records for Leeming could enlighten?

Best wishes,
Ken
Copley 253metres asl, nr Barnard Castle, County Durham
http://copley.mysite.orange.co.uk