Category: Extremes affecting Australia

Heat wave occuring from February 12 2023 to February 21 2023 at -21.0°S 115.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 10 days

Time span: February 12 2023 to February 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 30.0 °C
  • Maximum temperature anomaly: 4.5 °C
  • Maximum temperature: 36.5 °C

Event center: -21.0°S 115.5°E

Area affected: 343363 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-Feb-12_to_2023-Feb-21_115.5_-21.0

Cold spell occuring from February 12 2023 to March 05 2023 at -26.5°S 165.0°E

Download data: JSON

Event type: Cold spell

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

  • Australia
  • New Caledonia
  • Norfolk Island

Duration: 22 days

Time span: February 12 2023 to March 05 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.4 °C
  • Mean temperature: 23.2 °C
  • Minimum temperature anomaly: -3.3 °C
  • Minimum temperature: 18.8 °C

Event center: -26.5°S 165.0°E

Area affected: 2578008 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-12_to_2023-Mar-05_165.0_-26.5

Heat wave occuring from February 10 2023 to February 22 2023 at -43.0°S 169.0°E

Download data: JSON

Event type: Heat wave

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

  • Australia
  • New Zealand

Duration: 13 days

Time span: February 10 2023 to February 22 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 14.4 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 21.1 °C

Event center: -43.0°S 169.0°E

Area affected: 4482962 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-Feb-10_to_2023-Feb-22_169.0_-43.0

Cold spell occuring from February 10 2023 to March 15 2023 at -19.5°S 138.5°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 34 days

Time span: February 10 2023 to March 15 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -3.8 °C
  • Mean temperature: 24.8 °C
  • Minimum temperature anomaly: -9.4 °C
  • Minimum temperature: 18.6 °C

Event center: -19.5°S 138.5°E

Area affected: 2260560 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-10_to_2023-Mar-15_138.5_-19.5

Heat wave occuring from February 06 2023 to February 24 2023 at -26.5°S 124.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 19 days

Time span: February 06 2023 to February 24 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.9 °C
  • Mean temperature: 31.8 °C
  • Maximum temperature anomaly: 13.7 °C
  • Maximum temperature: 38.1 °C

Event center: -26.5°S 124.5°E

Area affected: 1652020 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-Feb-06_to_2023-Feb-24_124.5_-26.5

Cold spell occuring from January 30 2023 to February 06 2023 at -23.0°S 132.5°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 8 days

Time span: January 30 2023 to February 06 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.9 °C
  • Mean temperature: 19.7 °C
  • Minimum temperature anomaly: -12.1 °C
  • Minimum temperature: 4.9 °C

Event center: -23.0°S 132.5°E

Area affected: 2883872 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-Jan-30_to_2023-Feb-06_132.5_-23.0

Heat wave occuring from January 30 2023 to February 10 2023 at -19.5°S 114.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 12 days

Time span: January 30 2023 to February 10 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 28.7 °C
  • Maximum temperature anomaly: 2.5 °C
  • Maximum temperature: 30.4 °C

Event center: -19.5°S 114.5°E

Area affected: 445474 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-Jan-30_to_2023-Feb-10_114.5_-19.5

Cold spell occuring from January 27 2023 to January 30 2023 at -25.0°S 129.5°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 4 days

Time span: January 27 2023 to January 30 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -6.4 °C
  • Mean temperature: 24.3 °C
  • Minimum temperature anomaly: -8.7 °C
  • Minimum temperature: 19.8 °C

Event center: -25.0°S 129.5°E

Area affected: 190691 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-Jan-27_to_2023-Jan-30_129.5_-25.0

Heat wave occuring from January 21 2023 to January 25 2023 at -44.5°S 146.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 5 days

Time span: January 21 2023 to January 25 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 15.5 °C
  • Maximum temperature anomaly: 3.8 °C
  • Maximum temperature: 18.3 °C

Event center: -44.5°S 146.5°E

Area affected: 293357 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-Jan-21_to_2023-Jan-25_146.5_-44.5

Cold spell occuring from January 21 2023 to January 23 2023 at -31.0°S 147.0°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 3 days

Time span: January 21 2023 to January 23 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -6.6 °C
  • Mean temperature: 22.0 °C
  • Minimum temperature anomaly: -9.0 °C
  • Minimum temperature: 19.0 °C

Event center: -31.0°S 147.0°E

Area affected: 53145 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-Jan-21_to_2023-Jan-23_147.0_-31.0