Category: Extremes affecting Niger

Cold spell occuring from October 15 2021 to October 20 2021 at 13.5°N 14.0°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Niger
  • Nigeria

Duration: 6 days

Time span: October 15 2021 to October 20 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 28.7 °C
  • Minimum temperature anomaly: -4.0 °C
  • Minimum temperature: 27.0 °C

Event center: 13.5°N 14.0°E

Area affected: 143980 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_2021-Oct-15_to_2021-Oct-20_14.0_13.5

Heat wave occuring from October 15 2021 to October 22 2021 at 18.5°N 15.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger

Duration: 8 days

Time span: October 15 2021 to October 22 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: 31.2 °C
  • Maximum temperature anomaly: 4.7 °C
  • Maximum temperature: 34.4 °C

Event center: 18.5°N 15.5°E

Area affected: 270340 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_2021-Oct-15_to_2021-Oct-22_15.5_18.5

Cold spell occuring from October 07 2021 to October 21 2021 at 13.5°N 10.0°E

Download data: JSON

Event type: Cold spell

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

  • Niger
  • Nigeria

Duration: 15 days

Time span: October 07 2021 to October 21 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 27.7 °C
  • Minimum temperature anomaly: -4.1 °C
  • Minimum temperature: 24.6 °C

Event center: 13.5°N 10.0°E

Area affected: 60123 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_2021-Oct-07_to_2021-Oct-21_10.0_13.5

Cold spell occuring from September 28 2021 to October 11 2021 at 20.5°N 32.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Chad
  • Egypt
  • Libya
  • Niger
  • Sudan

Duration: 14 days

Time span: September 28 2021 to October 11 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 25.8 °C
  • Minimum temperature anomaly: -5.0 °C
  • Minimum temperature: 17.6 °C

Event center: 20.5°N 32.0°E

Area affected: 2737178 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_2021-Sep-28_to_2021-Oct-11_32.0_20.5

Cold spell occuring from September 24 2021 to October 03 2021 at 22.0°N 18.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Chad
  • Egypt
  • Libya
  • Niger

Duration: 10 days

Time span: September 24 2021 to October 03 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 24.5 °C
  • Minimum temperature anomaly: -5.6 °C
  • Minimum temperature: 18.5 °C

Event center: 22.0°N 18.0°E

Area affected: 1277640 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_2021-Sep-24_to_2021-Oct-03_18.0_22.0

Heat wave occuring from September 15 2021 to September 19 2021 at 15.0°N 11.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger

Duration: 5 days

Time span: September 15 2021 to September 19 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 33.1 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 33.9 °C

Event center: 15.0°N 11.5°E

Area affected: 77662 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_2021-Sep-15_to_2021-Sep-19_11.5_15.0

Heat wave occuring from September 08 2021 to September 12 2021 at 17.5°N 19.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Libya
  • Niger
  • Sudan

Duration: 5 days

Time span: September 08 2021 to September 12 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 33.9 °C
  • Maximum temperature anomaly: 3.7 °C
  • Maximum temperature: 37.2 °C

Event center: 17.5°N 19.5°E

Area affected: 593394 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_2021-Sep-08_to_2021-Sep-12_19.5_17.5

Heat wave occuring from August 23 2021 to August 25 2021 at 15.0°N 359.5°E

Download data: JSON

Event type: Heat wave

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

  • Burkina Faso
  • Mali
  • Niger

Duration: 3 days

Time span: August 23 2021 to August 25 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.6 °C
  • Mean temperature: 33.6 °C
  • Maximum temperature anomaly: 6.2 °C
  • Maximum temperature: 37.1 °C

Event center: 15.0°N 0.0°E

Area affected: 68502 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_2021-Aug-23_to_2021-Aug-25_359.5_15.0

Heat wave occuring from August 16 2021 to August 20 2021 at 20.0°N 16.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger

Duration: 5 days

Time span: August 16 2021 to August 20 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 35.1 °C
  • Maximum temperature anomaly: 4.2 °C
  • Maximum temperature: 37.7 °C

Event center: 20.0°N 16.5°E

Area affected: 321809 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_2021-Aug-16_to_2021-Aug-20_16.5_20.0

Heat wave occuring from August 13 2021 to September 17 2021 at -18.5°S 45.0°E

Download data: JSON

Event type: Heat wave

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

  • Burundi
  • Cameroon
  • Central African Republic
  • Chad
  • Congo
  • Congo, The Democratic Republic of the
  • Djibouti
  • Egypt
  • Eritrea
  • Ethiopia
  • Iraq
  • Israel
  • Jordan
  • Kenya
  • Lebanon
  • Madagascar
  • Malawi
  • Mozambique
  • Niger
  • Nigeria
  • Rwanda
  • Saudi Arabia
  • Somalia
  • South Sudan
  • Sudan
  • Syrian Arab Republic
  • Tanzania, United Republic of
  • Uganda
  • Yemen
  • Zambia

Duration: 36 days

Time span: August 13 2021 to September 17 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 28.0 °C
  • Maximum temperature anomaly: 7.0 °C
  • Maximum temperature: 40.4 °C

Event center: -18.5°S 45.0°E

Area affected: 10685537 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_2021-Aug-13_to_2021-Sep-17_45.0_-18.5