HadCET

Last update: 20th December 2021

For accuracy and version issues with HadCET see the post “CET Issues“, this page only shows selected plots of the data.

This page shows the summer (June, July, August) daily temperature maxima (Tmax), and winter (December, January, February) daily temperature minima (Tmin) of the Central England Temperature series known as HadCET, which can be downloaded from here:

http://www.metoffice.gov.uk/hadobs/hadcet/data/download.html

The following two figures show all the data, which runs from 1878 to present, with blue/red squares marking:

  • Summer maxima greater than 30 C
  • Winter minima less than -6 C

CET_DAILY_SUMMER_Tmaxs_Sept2021

CET_DAILY_WINTER_Tmins_Sept2021

The plots above reveal the following:

  • Hot summer days in recent decades were hotter and more numerous than in the period before
  • Cold winter nights in recent decades were milder and less numerous than in the period before

Note that winter 2010/11 (shown in more detail below) was cold relative to winters of the last 30 years, but was not exceptional (at least in terms of temperature) over the entire period from 1878.

WINTER (December/January) MAXIMUM TEMPERATURES

To identify the coldest winters data are plotted below for both maxima and minima, and including the months of November and March, starting with winters 2007/08 to 2015/16, and ending with winters 1878/79 to 1884/85.

Winters 2007/08 to 2015/16:

hadcet2007_16

hadcetmin2007_16

Winters 1995/96 to 2006/07:

hadcet1995_07

hadcetmin1995_07

Winters 1985/86 to 1994/95:

hadcet1985_96

hadcetmin1985_96

Winters 1975/76 to 1984/85:

hadcet1975_86

hadcetmin1975_86

Winters 1965/66 to 1974/75:

hadcet1965_76

hadcetmin1965_76

Winters 1955/56 to 1964/65:

hadcet1955_66

hadcetmin1955_66

Winters 1945/46 to 1954/55:

hadcet1945_56

hadcetmin1945_56

Winters 1935/36 to 1944/45:

hadcet1935_46

hadcetmin1935_46

Winters 1925/26 to 1934/35:

hadcet1925_36

hadcetmin1925_36

Winters 1915/16 to 1924/25:

hadcet1915_26

hadcetmin1915_26

Winters 1905/06 to 1914/15:

hadcet1905_16

hadcetmin1905_16

Winters 1895/96 to 1904/05:

hadcet1895_06

hadcetmin1895_06

Winters 1885/86 to 1894/95:

hadcet1885_96

hadcetmin1885_96

Winters 1878/79 to 1884/85:

hadcet1878_86

hadcetmin1878_86

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