Cold spell occuring from January 01 2025 to January 16 2025 at -27.0°S 177.5°E

Download data: JSON

Event type: Cold spell

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

  • New Zealand

Duration: 16 days

Time span: January 01 2025 to January 16 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 18.9 °C
  • Minimum temperature anomaly: -5.9 °C
  • Minimum temperature: 8.1 °C

Event center: -27.0°S 177.5°E

Area affected: 1446830 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-Jan-01_to_2025-Jan-16_177.5_-27.0

Heat wave occuring from December 17 2024 to December 28 2024 at -43.5°S 169.0°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 12 days

Time span: December 17 2024 to December 28 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 17.1 °C
  • Maximum temperature anomaly: 6.6 °C
  • Maximum temperature: 19.7 °C

Event center: -43.5°S 169.0°E

Area affected: 271858 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_2024-Dec-17_to_2024-Dec-28_169.0_-43.5

Heat wave occuring from December 01 2024 to December 06 2024 at -38.0°S 177.0°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 6 days

Time span: December 01 2024 to December 06 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: 18.5 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 23.4 °C

Event center: -38.0°S 177.0°E

Area affected: 296187 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_2024-Dec-01_to_2024-Dec-06_177.0_-38.0

Heat wave occuring from November 30 2024 to December 06 2024 at -44.5°S 169.5°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 7 days

Time span: November 30 2024 to December 06 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: 15.2 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 21.7 °C

Event center: -44.5°S 169.5°E

Area affected: 108217 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_2024-Nov-30_to_2024-Dec-06_169.5_-44.5

Heat wave occuring from November 16 2024 to November 23 2024 at -57.5°S 167.0°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 8 days

Time span: November 16 2024 to November 23 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 5.9 °C
  • Maximum temperature anomaly: 4.3 °C
  • Maximum temperature: 12.2 °C

Event center: -57.5°S 167.0°E

Area affected: 2832907 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_2024-Nov-16_to_2024-Nov-23_167.0_-57.5

Heat wave occuring from November 11 2024 to November 13 2024 at -49.0°S 161.5°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 3 days

Time span: November 11 2024 to November 13 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 11.0 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 12.8 °C

Event center: -49.0°S 161.5°E

Area affected: 191843 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_2024-Nov-11_to_2024-Nov-13_161.5_-49.0

Heat wave occuring from November 09 2024 to November 14 2024 at -53.0°S 176.0°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 6 days

Time span: November 09 2024 to November 14 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 8.9 °C
  • Maximum temperature anomaly: 3.1 °C
  • Maximum temperature: 11.2 °C

Event center: -53.0°S 176.0°E

Area affected: 270201 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_2024-Nov-09_to_2024-Nov-14_176.0_-53.0

Cold spell occuring from October 25 2024 to October 27 2024 at -48.5°S 168.5°E

Download data: JSON

Event type: Cold spell

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

  • New Zealand

Duration: 3 days

Time span: October 25 2024 to October 27 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 7.3 °C
  • Minimum temperature anomaly: -2.7 °C
  • Minimum temperature: 5.9 °C

Event center: -48.5°S 168.5°E

Area affected: 53693 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-Oct-25_to_2024-Oct-27_168.5_-48.5

Heat wave occuring from October 01 2024 to October 08 2024 at -46.0°S 183.0°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 8 days

Time span: October 01 2024 to October 08 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 11.3 °C
  • Maximum temperature anomaly: 3.2 °C
  • Maximum temperature: 14.8 °C

Event center: -46.0°S 183.0°E

Area affected: 396059 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_2024-Oct-01_to_2024-Oct-08_183.0_-46.0

Cold spell occuring from August 15 2024 to August 20 2024 at -56.0°S 169.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica
  • New Zealand

Duration: 6 days

Time span: August 15 2024 to August 20 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -4.9 °C
  • Mean temperature: -2.1 °C
  • Minimum temperature anomaly: -12.8 °C
  • Minimum temperature: -19.1 °C

Event center: -56.0°S 169.0°E

Area affected: 1319661 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-Aug-15_to_2024-Aug-20_169.0_-56.0