Category: Extremes affecting Niger

Cold spell occuring from December 26 2011 to January 02 2012 at 16.5°N 345.0°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
  • Guinea
  • Mali
  • Mauritania
  • Morocco
  • Niger
  • Senegal

Duration: 8 days

Time span: December 26 2011 to January 02 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: 15.1 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: 4.5 °C

Event center: 16.5°N 345.0°E

Area affected: 2854943 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_2011-Dec-26_to_2012-Jan-02_345.0_16.5

Heat wave occuring from December 25 2011 to December 31 2011 at 16.5°N 15.5°E

Download data: JSON

Event type: Heat wave

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

  • Cameroon
  • Chad
  • Libya
  • Niger
  • Nigeria

Duration: 7 days

Time span: December 25 2011 to December 31 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: 22.0 °C
  • Maximum temperature anomaly: 5.6 °C
  • Maximum temperature: 27.7 °C

Event center: 16.5°N 15.5°E

Area affected: 847871 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_2011-Dec-25_to_2011-Dec-31_15.5_16.5

Cold spell occuring from November 01 2011 to November 04 2011 at 15.5°N 16.0°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Niger

Duration: 4 days

Time span: November 01 2011 to November 04 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 23.9 °C
  • Minimum temperature anomaly: -3.5 °C
  • Minimum temperature: 22.2 °C

Event center: 15.5°N 16.0°E

Area affected: 101139 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_2011-Nov-01_to_2011-Nov-04_16.0_15.5

Cold spell occuring from October 26 2011 to December 24 2011 at 37.5°N 45.0°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • Albania
  • Armenia
  • Austria
  • Azerbaijan
  • Bahrain
  • Bosnia and Herzegovina
  • Bulgaria
  • Cameroon
  • Central African Republic
  • Chad
  • China
  • Congo
  • Congo DRC
  • Croatia
  • Cyprus
  • Czech Republic
  • Djibouti
  • Egypt
  • Eritrea
  • Ethiopia
  • Georgia
  • Greece
  • Hungary
  • Iran
  • Iraq
  • Israel
  • Italy
  • Jordan
  • Kazakhstan
  • Kuwait
  • Kyrgyzstan
  • Lebanon
  • Libya
  • Mali
  • Niger
  • Nigeria
  • North Macedonia
  • Oman
  • Pakistan
  • Palestinian Territory
  • Poland
  • Qatar
  • Romania
  • Russian Federation
  • Saudi Arabia
  • Serbia
  • Slovakia
  • Slovenia
  • Somalia
  • South Sudan
  • Sudan
  • Syria
  • Tajikistan
  • Turkiye
  • Turkmenistan
  • Ukraine
  • United Arab Emirates
  • Uzbekistan
  • Yemen

Duration: 60 days

Time span: October 26 2011 to December 24 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -5.4 °C
  • Mean temperature: 9.8 °C
  • Minimum temperature anomaly: -19.7 °C
  • Minimum temperature: -27.5 °C

Event center: 37.5°N 45.0°E

Area affected: 22191719 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_2011-Oct-26_to_2011-Dec-24_45.0_37.5

Heat wave occuring from October 16 2011 to October 22 2011 at 14.0°N 11.0°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger
  • Nigeria

Duration: 7 days

Time span: October 16 2011 to October 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 32.0 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 33.6 °C

Event center: 14.0°N 11.0°E

Area affected: 210113 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_2011-Oct-16_to_2011-Oct-22_11.0_14.0

Heat wave occuring from October 15 2011 to November 10 2011 at 12.5°N 358.0°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Burkina Faso
  • Mali
  • Niger
  • Nigeria
  • Togo

Duration: 27 days

Time span: October 15 2011 to November 10 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 31.8 °C
  • Maximum temperature anomaly: 3.6 °C
  • Maximum temperature: 35.4 °C

Event center: 12.5°N 358.0°E

Area affected: 295054 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_2011-Oct-15_to_2011-Nov-10_358.0_12.5

Cold spell occuring from September 29 2011 to October 25 2011 at 28.0°N 13.5°E

Download data: JSON

Event type: Cold spell

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

  • Albania
  • Algeria
  • Austria
  • Bahrain
  • Belarus
  • Bosnia and Herzegovina
  • Bulgaria
  • Chad
  • Croatia
  • Cyprus
  • Egypt
  • Georgia
  • Greece
  • Hungary
  • Iran
  • Iraq
  • Italy
  • Kuwait
  • Libya
  • Mali
  • Mauritania
  • Moldova
  • Montenegro
  • Niger
  • North Macedonia
  • Poland
  • Romania
  • Saudi Arabia
  • Serbia
  • Slovakia
  • Slovenia
  • Sudan
  • Syria
  • Tunisia
  • Turkiye
  • Ukraine

Duration: 27 days

Time span: September 29 2011 to October 25 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -4.7 °C
  • Mean temperature: 17.4 °C
  • Minimum temperature anomaly: -11.5 °C
  • Minimum temperature: -3.7 °C

Event center: 28.0°N 13.5°E

Area affected: 9904325 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_2011-Sep-29_to_2011-Oct-25_13.5_28.0

Heat wave occuring from September 23 2011 to October 05 2011 at 12.0°N 3.0°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Burkina Faso
  • Niger
  • Nigeria

Duration: 13 days

Time span: September 23 2011 to October 05 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 30.8 °C
  • Maximum temperature anomaly: 3.3 °C
  • Maximum temperature: 33.3 °C

Event center: 12.0°N 3.0°E

Area affected: 147806 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_2011-Sep-23_to_2011-Oct-05_3.0_12.0

Cold spell occuring from September 14 2011 to September 18 2011 at 15.0°N 14.5°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Niger
  • Nigeria

Duration: 5 days

Time span: September 14 2011 to September 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 27.7 °C
  • Minimum temperature anomaly: -5.7 °C
  • Minimum temperature: 24.6 °C

Event center: 15.0°N 14.5°E

Area affected: 71861 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_2011-Sep-14_to_2011-Sep-18_14.5_15.0

Cold spell occuring from August 16 2011 to August 22 2011 at 20.5°N 16.0°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Niger
  • Nigeria

Duration: 7 days

Time span: August 16 2011 to August 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 27.3 °C
  • Minimum temperature anomaly: -6.0 °C
  • Minimum temperature: 21.7 °C

Event center: 20.5°N 16.0°E

Area affected: 586124 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_2011-Aug-16_to_2011-Aug-22_16.0_20.5