Cold spell occuring from June 27 2025 to July 10 2025 at 21.0°N 84.5°E

Download data: JSON

Event type: Cold spell

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

  • Bangladesh
  • India

Duration: 14 days

Time span: June 27 2025 to July 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 25.2 °C
  • Minimum temperature anomaly: -4.6 °C
  • Minimum temperature: 20.8 °C

Event center: 21.0°N 84.5°E

Area affected: 819796 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-Jun-27_to_2025-Jul-10_84.5_21.0

Heat wave occuring from May 07 2025 to May 16 2025 at 22.5°N 91.5°E

Download data: JSON

Event type: Heat wave

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

  • Bangladesh
  • India
  • Myanmar
  • Nepal

Duration: 10 days

Time span: May 07 2025 to May 16 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 30.6 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 34.6 °C

Event center: 22.5°N 91.5°E

Area affected: 332451 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-May-07_to_2025-May-16_91.5_22.5

Cold spell occuring from April 27 2025 to June 06 2025 at 19.0°N 77.0°E

Download data: JSON

Event type: Cold spell

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

  • Bangladesh
  • India
  • Nepal
  • Pakistan

Duration: 41 days

Time span: April 27 2025 to June 06 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 28.3 °C
  • Minimum temperature anomaly: -10.5 °C
  • Minimum temperature: 3.7 °C

Event center: 19.0°N 77.0°E

Area affected: 2908597 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-Apr-27_to_2025-Jun-06_77.0_19.0

Heat wave occuring from April 21 2025 to April 27 2025 at 25.5°N 92.0°E

Download data: JSON

Event type: Heat wave

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

  • Bangladesh
  • China
  • India
  • Myanmar

Duration: 7 days

Time span: April 21 2025 to April 27 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: 27.7 °C
  • Maximum temperature anomaly: 6.5 °C
  • Maximum temperature: 33.8 °C

Event center: 25.5°N 92.0°E

Area affected: 182501 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-Apr-21_to_2025-Apr-27_92.0_25.5

Heat wave occuring from April 10 2025 to April 28 2025 at 19.5°N 85.5°E

Download data: JSON

Event type: Heat wave

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

  • Bangladesh
  • India
  • Myanmar

Duration: 19 days

Time span: April 10 2025 to April 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 0.9 °C
  • Mean temperature: 29.5 °C
  • Maximum temperature anomaly: 3.3 °C
  • Maximum temperature: 33.8 °C

Event center: 19.5°N 85.5°E

Area affected: 743022 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-Apr-10_to_2025-Apr-28_85.5_19.5

Cold spell occuring from April 07 2025 to April 20 2025 at 16.5°N 95.0°E

Download data: JSON

Event type: Cold spell

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

  • Bangladesh
  • India
  • Myanmar

Duration: 14 days

Time span: April 07 2025 to April 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 27.6 °C
  • Minimum temperature anomaly: -4.9 °C
  • Minimum temperature: 18.0 °C

Event center: 16.5°N 95.0°E

Area affected: 206592 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-Apr-07_to_2025-Apr-20_95.0_16.5

Cold spell occuring from March 21 2025 to March 25 2025 at 20.5°N 85.5°E

Download data: JSON

Event type: Cold spell

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

  • Bangladesh
  • India

Duration: 5 days

Time span: March 21 2025 to March 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.6 °C
  • Mean temperature: 23.8 °C
  • Minimum temperature anomaly: -6.5 °C
  • Minimum temperature: 18.8 °C

Event center: 20.5°N 85.5°E

Area affected: 350690 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-Mar-21_to_2025-Mar-25_85.5_20.5

Cold spell occuring from December 07 2024 to December 16 2024 at 21.5°N 88.0°E

Download data: JSON

Event type: Cold spell

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

  • Bangladesh
  • India

Duration: 10 days

Time span: December 07 2024 to December 16 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 19.2 °C
  • Minimum temperature anomaly: -3.2 °C
  • Minimum temperature: 15.7 °C

Event center: 21.5°N 88.0°E

Area affected: 182220 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-Dec-07_to_2024-Dec-16_88.0_21.5

Cold spell occuring from September 14 2024 to September 17 2024 at 23.0°N 87.5°E

Download data: JSON

Event type: Cold spell

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

  • Bangladesh
  • India

Duration: 4 days

Time span: September 14 2024 to September 17 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 25.5 °C
  • Minimum temperature anomaly: -3.2 °C
  • Minimum temperature: 22.3 °C

Event center: 23.0°N 87.5°E

Area affected: 130374 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-14_to_2024-Sep-17_87.5_23.0

Heat wave occuring from August 13 2024 to August 15 2024 at 23.0°N 93.5°E

Download data: JSON

Event type: Heat wave

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

  • Bangladesh
  • India
  • Myanmar

Duration: 3 days

Time span: August 13 2024 to August 15 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 28.1 °C
  • Maximum temperature anomaly: 2.4 °C
  • Maximum temperature: 30.8 °C

Event center: 23.0°N 93.5°E

Area affected: 59557 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-Aug-13_to_2024-Aug-15_93.5_23.0