Heat wave occuring from February 20 2025 to February 26 2025 at 47.5°N 13.0°E

Download data: JSON

Event type: Heat wave

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

  • Austria
  • Germany
  • Italy
  • Slovenia
  • Switzerland

Duration: 7 days

Time span: February 20 2025 to February 26 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.9 °C
  • Mean temperature: 3.0 °C
  • Maximum temperature anomaly: 7.7 °C
  • Maximum temperature: 9.8 °C

Event center: 47.5°N 13.0°E

Area affected: 50670 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_2025-Feb-20_to_2025-Feb-26_13.0_47.5

Cold spell occuring from February 15 2025 to February 20 2025 at 52.0°N 16.5°E

Download data: JSON

Event type: Cold spell

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

  • Austria
  • Czechia
  • Germany
  • Poland

Duration: 6 days

Time span: February 15 2025 to February 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.8 °C
  • Mean temperature: -6.0 °C
  • Minimum temperature anomaly: -13.8 °C
  • Minimum temperature: -13.6 °C

Event center: 52.0°N 16.5°E

Area affected: 255235 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_2025-Feb-15_to_2025-Feb-20_16.5_52.0

Heat wave occuring from February 08 2025 to February 13 2025 at 45.5°N 6.0°E

Download data: JSON

Event type: Heat wave

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

  • Austria
  • France
  • Italy
  • Switzerland

Duration: 6 days

Time span: February 08 2025 to February 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.4 °C
  • Mean temperature: 2.0 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 11.2 °C

Event center: 45.5°N 6.0°E

Area affected: 84175 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_2025-Feb-08_to_2025-Feb-13_6.0_45.5

Heat wave occuring from December 14 2024 to December 21 2024 at 52.5°N 20.5°E

Download data: JSON

Event type: Heat wave

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

  • Austria
  • Belarus
  • Czechia
  • Denmark
  • Germany
  • Ireland
  • Italy
  • Lithuania
  • Moldova, Republic of
  • Netherlands
  • Poland
  • Romania
  • Russian Federation
  • Slovakia
  • Sweden
  • Ukraine
  • United Kingdom

Duration: 8 days

Time span: December 14 2024 to December 21 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 6.3 °C
  • Mean temperature: 7.6 °C
  • Maximum temperature anomaly: 10.8 °C
  • Maximum temperature: 12.3 °C

Event center: 52.5°N 20.5°E

Area affected: 2319160 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_2024-Dec-14_to_2024-Dec-21_20.5_52.5

Cold spell occuring from November 07 2024 to November 13 2024 at 46.5°N 16.5°E

Download data: JSON

Event type: Cold spell

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

  • Austria
  • Croatia
  • Hungary
  • Romania
  • Serbia
  • Slovakia
  • Slovenia
  • Ukraine

Duration: 7 days

Time span: November 07 2024 to November 13 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -5.5 °C
  • Mean temperature: 1.2 °C
  • Minimum temperature anomaly: -7.5 °C
  • Minimum temperature: -1.2 °C

Event center: 46.5°N 16.5°E

Area affected: 113471 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_2024-Nov-07_to_2024-Nov-13_16.5_46.5

Cold spell occuring from September 08 2024 to September 19 2024 at 67.0°N 338.5°E

Download data: JSON

Event type: Cold spell

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

  • Albania
  • Andorra
  • Austria
  • Belgium
  • Bosnia and Herzegovina
  • Bulgaria
  • Croatia
  • Czechia
  • Denmark
  • France
  • Germany
  • Greece
  • Hungary
  • Iceland
  • Ireland
  • Italy
  • Luxembourg
  • Montenegro
  • Netherlands
  • North Macedonia
  • Norway
  • Romania
  • Serbia
  • Slovakia
  • Slovenia
  • Spain
  • Switzerland
  • United Kingdom

Duration: 12 days

Time span: September 08 2024 to September 19 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -3.1 °C
  • Mean temperature: 7.7 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: -8.6 °C

Event center: 67.0°N 338.5°E

Area affected: 2969063 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_2024-Sep-08_to_2024-Sep-19_338.5_67.0

Heat wave occuring from April 28 2024 to May 06 2024 at 60.5°N 6.0°E

Download data: JSON

Event type: Heat wave

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

  • Austria
  • Belarus
  • Belgium
  • Czechia
  • Denmark
  • Germany
  • Latvia
  • Lithuania
  • Netherlands
  • Norway
  • Poland
  • Russian Federation
  • Sweden
  • United Kingdom

Duration: 9 days

Time span: April 28 2024 to May 06 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 13.1 °C
  • Maximum temperature anomaly: 9.6 °C
  • Maximum temperature: 21.2 °C

Event center: 60.5°N 6.0°E

Area affected: 2297952 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_2024-Apr-28_to_2024-May-06_6.0_60.5

Cold spell occuring from April 04 2024 to April 29 2024 at 62.5°N 19.5°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Andorra
  • Austria
  • Belgium
  • Bosnia and Herzegovina
  • Canada
  • Croatia
  • Czechia
  • Denmark
  • Estonia
  • Finland
  • France
  • Germany
  • Greenland
  • Hungary
  • Italy
  • Latvia
  • Lithuania
  • Luxembourg
  • Netherlands
  • Norway
  • Poland
  • Romania
  • Russian Federation
  • Serbia
  • Slovakia
  • Slovenia
  • Spain
  • Svalbard and Jan Mayen
  • Sweden
  • Switzerland

Duration: 26 days

Time span: April 04 2024 to April 29 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -7.2 °C
  • Mean temperature: -18.6 °C
  • Minimum temperature anomaly: -15.7 °C
  • Minimum temperature: -36.1 °C

Event center: 62.5°N 19.5°E

Area affected: 12514763 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_2024-Apr-04_to_2024-Apr-29_19.5_62.5

Cold spell occuring from November 11 2023 to January 24 2024 at 64.0°N 11.5°E

Download data: JSON

Event type: Cold spell

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

  • Austria
  • Belgium
  • China
  • Czechia
  • Denmark
  • Estonia
  • Finland
  • France
  • Germany
  • Hong Kong
  • Ireland
  • Japan
  • Kazakhstan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Kyrgyzstan
  • Latvia
  • Lithuania
  • Luxembourg
  • Mongolia
  • Netherlands
  • Norway
  • Poland
  • Russian Federation
  • Slovakia
  • Sweden
  • Switzerland
  • Turkmenistan
  • United Kingdom
  • Uzbekistan
  • Viet Nam

Duration: 75 days

Time span: November 11 2023 to January 24 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -10.5 °C
  • Mean temperature: -22.4 °C
  • Minimum temperature anomaly: -30.3 °C
  • Minimum temperature: -58.1 °C

Event center: 64.0°N 11.5°E

Area affected: 29695508 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_2023-Nov-11_to_2024-Jan-24_11.5_64.0

Cold spell occuring from August 03 2023 to August 20 2023 at 58.0°N 17.0°E

Download data: JSON

Event type: Cold spell

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

  • Albania
  • Austria
  • Belgium
  • Bosnia and Herzegovina
  • Bulgaria
  • Croatia
  • Czechia
  • Denmark
  • Finland
  • France
  • Germany
  • Greece
  • Hungary
  • Italy
  • Latvia
  • Lithuania
  • Luxembourg
  • Montenegro
  • Netherlands
  • North Macedonia
  • Norway
  • Poland
  • Romania
  • Russian Federation
  • Serbia
  • Slovakia
  • Slovenia
  • Sweden
  • Switzerland
  • Ukraine
  • United Kingdom

Duration: 18 days

Time span: August 03 2023 to August 20 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.1 °C
  • Mean temperature: 15.9 °C
  • Minimum temperature anomaly: -9.0 °C
  • Minimum temperature: 1.6 °C

Event center: 58.0°N 17.0°E

Area affected: 2653339 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_2023-Aug-03_to_2023-Aug-20_17.0_58.0