The local climate around Luton is differentiated somewhat from much of South East England due to its position in the Chiltern Hills, meaning it tends to be 1–2 degrees Celsius cooler than the surrounding towns – often flights at Luton airport, lying above sea level, will be suspended when marginal snow events occur, while airports at lower elevations, such as Heathrow, at above sea level, continue to function. Absolute temperature extremes recorded at Rothamsted Research Station, south south east of Luton town centre and at a similar elevation range from in December 1981 and in January 1963 to in July 2019 and in August 1990 and July 2006. Records for Rothamsted date back to 1901.
The local climate around Luton is differentiated somewhat from much of South East England due to its position in the Chiltern Hills, meaning it tends to be 1–2 degrees Celsius cooler than the surrounding towns – often flights at Luton airport, lying above sea level, will be suspended when marginal snow events occur, while airports at lower elevations, such as Heathrow, at above sea level, continue to function. Absolute temperature extremes recorded at Rothamsted Research Station, south south east of Luton town centre and at a similar elevation range from in December 1981 and in January 1963 to in July 2019 and in August 1990 and July 2006. Records for Rothamsted date back to 1901.