A city man said he watched in disbelief as the thermometer in his garden hit a record level as the heatwave continues across the county.
Ron Green, 88, of Old Palace Road was amazed to see the gauge on his north facing shed wall reach 42C at 1.30pm on Tuesday.
It comes after the Met Office issued a red extreme heat warning covering much of central, northern, and south-east England.
Mr Green has had his thermometer for 20 years and has never seen it as high as 42C, which is 106F.
He said: "I can't handle the heat.
"When I went out to check the temperature it was too much for me - it's just so warm out there.
"My temperature gauge is facing north so there is no way it could have had sun on it."
Mr Green - who is Norwich born and bred - is a draughts enthusiast and has collected more than 100 different sets of the game from charity shops.
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