20th July 2016
Yesterday, Tuesday July 19th, was the warmest day since records began in Penallt (in March 2011), with the temperature reaching 31.2°C (88°F) at 3.30pm (readings are recorded every 30 minutes).
This beat the previous highest of 30.8°C recorded on July 13th 2013.
This was followed by a very warm overnight minimum of 21.1°C (70°F) at 7am today. This was some way short of the record of 23.4°C recorded on July 13th 2013 however.
The chart below captures the record high as well as the very warm low during a 24 hour period during 19th/20th July:-