Category: Extremes affecting New Zealand

Heat wave occuring from November 07 2010 to November 20 2010 at -39.0°S 160.0°E

Download data: JSON

Event type: Heat wave

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

  • Australia
  • New Zealand

Duration: 14 days

Time span: November 07 2010 to November 20 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 16.9 °C
  • Maximum temperature anomaly: 8.8 °C
  • Maximum temperature: 25.8 °C

Event center: -39.0°S 160.0°E

Area affected: 2356608 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_2010-Nov-07_to_2010-Nov-20_160.0_-39.0

Cold spell occuring from October 29 2010 to November 03 2010 at -34.0°S 182.5°E

Download data: JSON

Event type: Cold spell

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

  • New Zealand

Duration: 6 days

Time span: October 29 2010 to November 03 2010

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 14.7 °C
  • Minimum temperature anomaly: -4.7 °C
  • Minimum temperature: 6.6 °C

Event center: -34.0°S 182.5°E

Area affected: 937212 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_2010-Oct-29_to_2010-Nov-03_182.5_-34.0

Cold spell occuring from October 10 2010 to October 13 2010 at -32.5°S 174.5°E

Download data: JSON

Event type: Cold spell

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

  • New Zealand

Duration: 4 days

Time span: October 10 2010 to October 13 2010

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 14.1 °C
  • Minimum temperature anomaly: -4.4 °C
  • Minimum temperature: 11.1 °C

Event center: -32.5°S 174.5°E

Area affected: 536981 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_2010-Oct-10_to_2010-Oct-13_174.5_-32.5

Cold spell occuring from September 14 2010 to September 25 2010 at -56.5°S 146.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica
  • New Zealand

Duration: 12 days

Time span: September 14 2010 to September 25 2010

Statistics over entire affected area:

  • Mean temperature anomaly: -4.8 °C
  • Mean temperature: -3.5 °C
  • Minimum temperature anomaly: -13.7 °C
  • Minimum temperature: -44.5 °C

Event center: -56.5°S 146.0°E

Area affected: 5472128 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_2010-Sep-14_to_2010-Sep-25_146.0_-56.5

Heat wave occuring from September 11 2010 to September 17 2010 at -49.0°S 190.0°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: September 11 2010 to September 17 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 11.4 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 13.2 °C

Event center: -49.0°S 190.0°E

Area affected: 144137 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_2010-Sep-11_to_2010-Sep-17_190.0_-49.0

Heat wave occuring from April 25 2010 to April 29 2010 at -44.0°S 174.0°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 5 days

Time span: April 25 2010 to April 29 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 15.2 °C
  • Maximum temperature anomaly: 5.7 °C
  • Maximum temperature: 17.3 °C

Event center: -44.0°S 174.0°E

Area affected: 71408 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_2010-Apr-25_to_2010-Apr-29_174.0_-44.0

Heat wave occuring from February 19 2010 to February 24 2010 at -46.0°S 162.0°E

Download data: JSON

Event type: Heat wave

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

  • Australia
  • New Zealand

Duration: 6 days

Time span: February 19 2010 to February 24 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 18.1 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 26.2 °C

Event center: -46.0°S 162.0°E

Area affected: 862361 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_2010-Feb-19_to_2010-Feb-24_162.0_-46.0

Heat wave occuring from January 31 2010 to February 06 2010 at -44.5°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: 7 days

Time span: January 31 2010 to February 06 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 17.2 °C
  • Maximum temperature anomaly: 7.1 °C
  • Maximum temperature: 20.2 °C

Event center: -44.5°S 169.0°E

Area affected: 75439 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_2010-Jan-31_to_2010-Feb-06_169.0_-44.5

Cold spell occuring from January 07 2010 to January 16 2010 at -40.0°S 174.0°E

Download data: JSON

Event type: Cold spell

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

  • New Zealand

Duration: 10 days

Time span: January 07 2010 to January 16 2010

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 19.1 °C
  • Minimum temperature anomaly: -6.3 °C
  • Minimum temperature: 2.4 °C

Event center: -40.0°S 174.0°E

Area affected: 1977418 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_2010-Jan-07_to_2010-Jan-16_174.0_-40.0

Heat wave occuring from August 12 2026 to August 15 2026 at -39.5°S 175.5°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 4 days

Time span: August 12 2026 to August 15 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 12.9 °C
  • Maximum temperature anomaly: 4.5 °C
  • Maximum temperature: 15.6 °C

Event center: -39.5°S 175.5°E

Area affected: 75552 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_2026-Aug-12_to_2026-Aug-15_175.5_-39.5