Category: Extremes affecting United Kingdom

Heat wave occuring from October 14 2020 to February 13 2021 at 11.5°N 347.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Afghanistan
  • Albania
  • Algeria
  • Armenia
  • Azerbaijan
  • Bahrain
  • Belarus
  • Belgium
  • Benin
  • Bulgaria
  • Burkina Faso
  • Burundi
  • Cabo Verde
  • Cameroon
  • Central African Republic
  • Chad
  • China
  • Congo
  • Congo, The Democratic Republic of the
  • Cyprus
  • Czechia
  • Côte d’Ivoire
  • Egypt
  • Equatorial Guinea
  • Eritrea
  • Ethiopia
  • France
  • Gabon
  • Gambia
  • Georgia
  • Germany
  • Ghana
  • Greece
  • Guinea
  • Guinea-Bissau
  • Hungary
  • Iran, Islamic Republic of
  • Iraq
  • Israel
  • Italy
  • Jordan
  • Kazakhstan
  • Kyrgyzstan
  • Lebanon
  • Liberia
  • Libya
  • Mali
  • Mauritania
  • Moldova, Republic of
  • Mongolia
  • Morocco
  • Niger
  • Nigeria
  • North Macedonia
  • Pakistan
  • Poland
  • Portugal
  • Romania
  • Russian Federation
  • Rwanda
  • Saudi Arabia
  • Senegal
  • Serbia
  • Sierra Leone
  • Slovakia
  • South Sudan
  • Spain
  • Sudan
  • Syrian Arab Republic
  • Tajikistan
  • Tanzania, United Republic of
  • Togo
  • Tunisia
  • Turkmenistan
  • Türkiye
  • Uganda
  • Ukraine
  • United Kingdom
  • Uzbekistan

Duration: 123 days

Time span: October 14 2020 to February 13 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 18.7 °C
  • Maximum temperature anomaly: 17.0 °C
  • Maximum temperature: 32.7 °C

Event center: 3.5°N 19.5°E

Area affected: 37333109 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2020-Oct-14_to_2021-Feb-13_347.5_11.5

Cold spell occuring from September 23 2020 to September 27 2020 at 56.0°N 355.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • United Kingdom

Duration: 5 days

Time span: September 23 2020 to September 27 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.8 °C
  • Mean temperature: 7.6 °C
  • Minimum temperature anomaly: -6.5 °C
  • Minimum temperature: 3.3 °C

Event center: 56.0°N 355.5°E

Area affected: 72781 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2020-Sep-23_to_2020-Sep-27_355.5_56.0

Cold spell occuring from September 14 2020 to October 01 2020 at 77.5°N 316.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Andorra
  • Austria
  • Canada
  • Croatia
  • France
  • Germany
  • Greenland
  • Iceland
  • Ireland
  • Italy
  • Luxembourg
  • Slovenia
  • Spain
  • Switzerland
  • United Kingdom

Duration: 18 days

Time span: September 14 2020 to October 01 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.8 °C
  • Mean temperature: -14.1 °C
  • Minimum temperature anomaly: -15.9 °C
  • Minimum temperature: -41.4 °C

Event center: 77.5°N 316.0°E

Area affected: 4939781 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2020-Sep-14_to_2020-Oct-01_316.0_77.5

Cold spell occuring from August 27 2020 to September 01 2020 at 52.5°N 358.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • United Kingdom

Duration: 6 days

Time span: August 27 2020 to September 01 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 12.3 °C
  • Minimum temperature anomaly: -4.0 °C
  • Minimum temperature: 9.1 °C

Event center: 52.5°N 358.0°E

Area affected: 157093 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2020-Aug-27_to_2020-Sep-01_358.0_52.5

Cold spell occuring from August 25 2020 to August 29 2020 at 60.5°N 350.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • United Kingdom

Duration: 5 days

Time span: August 25 2020 to August 29 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 10.9 °C
  • Minimum temperature anomaly: -2.1 °C
  • Minimum temperature: 9.9 °C

Event center: 60.5°N 350.0°E

Area affected: 72137 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2020-Aug-25_to_2020-Aug-29_350.0_60.5

Heat wave occuring from August 10 2020 to August 18 2020 at 53.5°N 350.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Ireland
  • United Kingdom

Duration: 9 days

Time span: August 10 2020 to August 18 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 17.9 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 19.9 °C

Event center: 53.5°N 350.0°E

Area affected: 121668 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2020-Aug-10_to_2020-Aug-18_350.0_53.5

Cold spell occuring from July 18 2020 to July 20 2020 at 52.5°N 348.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Ireland
  • United Kingdom

Duration: 3 days

Time span: July 18 2020 to July 20 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -1.7 °C
  • Mean temperature: 13.1 °C
  • Minimum temperature anomaly: -2.9 °C
  • Minimum temperature: 12.0 °C

Event center: 52.5°N 348.5°E

Area affected: 75215 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2020-Jul-18_to_2020-Jul-20_348.5_52.5

Cold spell occuring from July 06 2020 to July 11 2020 at 54.5°N 0.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • United Kingdom

Duration: 6 days

Time span: July 06 2020 to July 11 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 12.5 °C
  • Minimum temperature anomaly: -3.3 °C
  • Minimum temperature: 11.8 °C

Event center: 54.5°N 0.0°E

Area affected: 81897 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2020-Jul-06_to_2020-Jul-11_0.0_54.5

Heat wave occuring from May 31 2020 to June 30 2020 at 65.5°N 22.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Belarus
  • Belgium
  • Denmark
  • Estonia
  • Finland
  • France
  • Germany
  • Latvia
  • Lithuania
  • Netherlands
  • Norway
  • Poland
  • Russian Federation
  • Sweden
  • Ukraine
  • United Kingdom

Duration: 31 days

Time span: May 31 2020 to June 30 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 17.5 °C
  • Maximum temperature anomaly: 12.1 °C
  • Maximum temperature: 26.7 °C

Event center: 65.5°N 22.5°E

Area affected: 4562585 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2020-May-31_to_2020-Jun-30_22.5_65.5

Heat wave occuring from May 18 2020 to May 24 2020 at 53.5°N 0.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • United Kingdom

Duration: 7 days

Time span: May 18 2020 to May 24 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 16.2 °C
  • Maximum temperature anomaly: 7.1 °C
  • Maximum temperature: 19.9 °C

Event center: 53.0°N 359.5°E

Area affected: 111176 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2020-May-18_to_2020-May-24_0.5_53.5