Category: Cold spells affecting South Africa

Cold spell occuring from July 09 2023 to July 11 2023 at -30.0°S 28.0°E

Download data: JSON

Event type: Cold spell

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

  • Lesotho
  • South Africa

Duration: 3 days

Time span: July 09 2023 to July 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.8 °C
  • Mean temperature: 3.3 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: -1.9 °C

Event center: -30.0°S 28.0°E

Area affected: 76627 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-Jul-09_to_2023-Jul-11_28.0_-30.0

Cold spell occuring from July 09 2023 to July 15 2023 at -17.0°S 13.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Botswana
  • Namibia
  • South Africa
  • Zambia
  • Zimbabwe

Duration: 7 days

Time span: July 09 2023 to July 15 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 11.5 °C
  • Minimum temperature anomaly: -8.5 °C
  • Minimum temperature: 2.2 °C

Event center: -17.0°S 13.0°E

Area affected: 1917815 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-Jul-09_to_2023-Jul-15_13.0_-17.0

Cold spell occuring from July 08 2023 to July 12 2023 at -33.0°S 17.5°E

Download data: JSON

Event type: Cold spell

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

  • South Africa

Duration: 5 days

Time span: July 08 2023 to July 12 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 12.8 °C
  • Minimum temperature anomaly: -4.3 °C
  • Minimum temperature: 7.5 °C

Event center: -33.0°S 17.5°E

Area affected: 183188 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-Jul-08_to_2023-Jul-12_17.5_-33.0

Cold spell occuring from June 17 2023 to June 29 2023 at -33.5°S 50.5°E

Download data: JSON

Event type: Cold spell

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

  • Madagascar
  • South Africa

Duration: 13 days

Time span: June 17 2023 to June 29 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 11.1 °C
  • Minimum temperature anomaly: -7.6 °C
  • Minimum temperature: -0.5 °C

Event center: -33.5°S 50.5°E

Area affected: 6589115 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-Jun-17_to_2023-Jun-29_50.5_-33.5

Cold spell occuring from May 19 2023 to May 21 2023 at -25.5°S 24.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • South Africa

Duration: 3 days

Time span: May 19 2023 to May 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 11.7 °C
  • Minimum temperature anomaly: -4.9 °C
  • Minimum temperature: 10.4 °C

Event center: -25.5°S 24.0°E

Area affected: 52877 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-May-19_to_2023-May-21_24.0_-25.5

Cold spell occuring from May 11 2023 to May 22 2023 at -33.5°S 27.5°E

Download data: JSON

Event type: Cold spell

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

  • South Africa

Duration: 12 days

Time span: May 11 2023 to May 22 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 12.8 °C
  • Minimum temperature anomaly: -7.3 °C
  • Minimum temperature: 5.4 °C

Event center: -33.5°S 27.5°E

Area affected: 813680 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-May-11_to_2023-May-22_27.5_-33.5

Cold spell occuring from May 10 2023 to June 07 2023 at -26.0°S 12.5°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Namibia
  • South Africa

Duration: 29 days

Time span: May 10 2023 to June 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 15.7 °C
  • Minimum temperature anomaly: -7.9 °C
  • Minimum temperature: 3.4 °C

Event center: -26.0°S 12.5°E

Area affected: 1322136 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-May-10_to_2023-Jun-07_12.5_-26.0

Cold spell occuring from April 08 2023 to April 12 2023 at -30.0°S 19.5°E

Download data: JSON

Event type: Cold spell

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

  • Namibia
  • South Africa

Duration: 5 days

Time span: April 08 2023 to April 12 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.9 °C
  • Mean temperature: 13.8 °C
  • Minimum temperature anomaly: -8.9 °C
  • Minimum temperature: 9.8 °C

Event center: -30.0°S 19.5°E

Area affected: 215391 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-Apr-08_to_2023-Apr-12_19.5_-30.0

Cold spell occuring from March 26 2023 to April 01 2023 at -34.0°S 26.0°E

Download data: JSON

Event type: Cold spell

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

  • South Africa

Duration: 7 days

Time span: March 26 2023 to April 01 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.1 °C
  • Mean temperature: 17.5 °C
  • Minimum temperature anomaly: -3.4 °C
  • Minimum temperature: 14.9 °C

Event center: -34.0°S 26.0°E

Area affected: 71448 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-Mar-26_to_2023-Apr-01_26.0_-34.0

Cold spell occuring from February 24 2023 to March 02 2023 at -23.0°S 34.5°E

Download data: JSON

Event type: Cold spell

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

  • Mozambique
  • South Africa
  • Zimbabwe

Duration: 7 days

Time span: February 24 2023 to March 02 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -3.2 °C
  • Mean temperature: 23.7 °C
  • Minimum temperature anomaly: -5.0 °C
  • Minimum temperature: 21.2 °C

Event center: -23.0°S 34.5°E

Area affected: 164954 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-Feb-24_to_2023-Mar-02_34.5_-23.0