Cold spell occuring from February 23 2025 to February 28 2025 at 15.0°N 346.5°E

Download data: JSON

Event type: Cold spell

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

  • Burkina Faso
  • Côte d’Ivoire
  • Ghana
  • Guinea
  • Mali
  • Mauritania
  • Senegal

Duration: 6 days

Time span: February 23 2025 to February 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.5 °C
  • Mean temperature: 25.9 °C
  • Minimum temperature anomaly: -5.3 °C
  • Minimum temperature: 22.8 °C

Event center: 15.0°N 346.5°E

Area affected: 421266 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-23_to_2025-Feb-28_346.5_15.0

Heat wave occuring from February 23 2025 to March 01 2025 at 4.0°N 353.5°E

Download data: JSON

Event type: Heat wave

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

  • Côte d’Ivoire
  • Liberia

Duration: 7 days

Time span: February 23 2025 to March 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 28.3 °C
  • Maximum temperature anomaly: 2.0 °C
  • Maximum temperature: 29.1 °C

Event center: 4.0°N 353.5°E

Area affected: 484428 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-23_to_2025-Mar-01_353.5_4.0

Cold spell occuring from December 18 2024 to December 22 2024 at 11.0°N 3.0°E

Download data: JSON

Event type: Cold spell

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

  • Benin
  • Burkina Faso
  • Côte d’Ivoire
  • Ghana
  • Mali
  • Niger
  • Nigeria
  • Togo

Duration: 5 days

Time span: December 18 2024 to December 22 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -3.2 °C
  • Mean temperature: 21.4 °C
  • Minimum temperature anomaly: -4.7 °C
  • Minimum temperature: 17.3 °C

Event center: 11.0°N 3.0°E

Area affected: 1169535 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-18_to_2024-Dec-22_3.0_11.0

Cold spell occuring from November 14 2024 to December 08 2024 at 11.0°N 16.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Benin
  • Burkina Faso
  • Cameroon
  • Central African Republic
  • Chad
  • Côte d’Ivoire
  • Egypt
  • Ghana
  • Libya
  • Mali
  • Niger
  • Nigeria
  • Sudan
  • Togo

Duration: 25 days

Time span: November 14 2024 to December 08 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 19.6 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: 8.3 °C

Event center: 11.0°N 16.0°E

Area affected: 4509535 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-14_to_2024-Dec-08_16.0_11.0

Cold spell occuring from November 04 2024 to November 08 2024 at 10.5°N 355.0°E

Download data: JSON

Event type: Cold spell

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

  • Burkina Faso
  • Côte d’Ivoire
  • Ghana
  • Mali

Duration: 5 days

Time span: November 04 2024 to November 08 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 26.0 °C
  • Minimum temperature anomaly: -3.0 °C
  • Minimum temperature: 24.4 °C

Event center: 10.5°N 355.0°E

Area affected: 124251 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-04_to_2024-Nov-08_355.0_10.5

Cold spell occuring from December 16 2023 to December 23 2023 at 15.0°N 346.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Burkina Faso
  • Côte d’Ivoire
  • Gambia
  • Ghana
  • Guinea
  • Guinea-Bissau
  • Mali
  • Mauritania
  • Senegal

Duration: 8 days

Time span: December 16 2023 to December 23 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 18.0 °C
  • Minimum temperature anomaly: -7.1 °C
  • Minimum temperature: 8.7 °C

Event center: 15.0°N 346.0°E

Area affected: 3357227 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-Dec-16_to_2023-Dec-23_346.0_15.0

Heat wave occuring from July 02 2023 to July 07 2023 at 11.0°N 353.5°E

Download data: JSON

Event type: Heat wave

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

  • Côte d’Ivoire
  • Guinea
  • Mali

Duration: 6 days

Time span: July 02 2023 to July 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 27.8 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 29.5 °C

Event center: 11.0°N 353.5°E

Area affected: 63798 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_2023-Jul-02_to_2023-Jul-07_353.5_11.0

Heat wave occuring from April 09 2023 to April 29 2023 at 8.0°N 351.5°E

Download data: JSON

Event type: Heat wave

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

  • Burkina Faso
  • Côte d’Ivoire
  • Guinea
  • Liberia
  • Mali
  • Sierra Leone

Duration: 21 days

Time span: April 09 2023 to April 29 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 29.4 °C
  • Maximum temperature anomaly: 3.9 °C
  • Maximum temperature: 34.7 °C

Event center: 8.0°N 351.5°E

Area affected: 434185 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_2023-Apr-09_to_2023-Apr-29_351.5_8.0

Heat wave occuring from March 31 2023 to April 05 2023 at 5.0°N 354.5°E

Download data: JSON

Event type: Heat wave

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

  • Côte d’Ivoire

Duration: 6 days

Time span: March 31 2023 to April 05 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 0.8 °C
  • Mean temperature: 28.3 °C
  • Maximum temperature anomaly: 1.0 °C
  • Maximum temperature: 28.6 °C

Event center: 5.0°N 354.5°E

Area affected: 55464 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_2023-Mar-31_to_2023-Apr-05_354.5_5.0

Heat wave occuring from March 24 2023 to March 28 2023 at 7.5°N 349.0°E

Download data: JSON

Event type: Heat wave

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

  • Côte d’Ivoire
  • Guinea
  • Liberia
  • Sierra Leone

Duration: 5 days

Time span: March 24 2023 to March 28 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 28.0 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 30.0 °C

Event center: 7.5°N 349.0°E

Area affected: 58230 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_2023-Mar-24_to_2023-Mar-28_349.0_7.5