Category: Extremes affecting New Zealand

Cold spell occuring from October 05 2022 to October 07 2022 at -41.0°S 175.0°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 05 2022 to October 07 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -4.7 °C
  • Mean temperature: 6.1 °C
  • Minimum temperature anomaly: -7.7 °C
  • Minimum temperature: 0.2 °C

Event center: -41.0°S 175.0°E

Area affected: 61937 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_2022-Oct-05_to_2022-Oct-07_175.0_-41.0

Cold spell occuring from October 05 2022 to October 07 2022 at -46.5°S 186.5°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 05 2022 to October 07 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -3.2 °C
  • Mean temperature: 7.3 °C
  • Minimum temperature anomaly: -6.0 °C
  • Minimum temperature: 2.6 °C

Event center: -46.5°S 186.5°E

Area affected: 185108 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_2022-Oct-05_to_2022-Oct-07_186.5_-46.5

Cold spell occuring from September 03 2022 to September 05 2022 at -50.0°S 172.0°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: September 03 2022 to September 05 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 3.5 °C
  • Minimum temperature anomaly: -5.1 °C
  • Minimum temperature: 0.9 °C

Event center: -50.0°S 172.0°E

Area affected: 668556 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_2022-Sep-03_to_2022-Sep-05_172.0_-50.0

Cold spell occuring from August 07 2022 to August 14 2022 at -42.5°S 173.0°E

Download data: JSON

Event type: Cold spell

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

  • New Zealand

Duration: 8 days

Time span: August 07 2022 to August 14 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 5.2 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: -6.3 °C

Event center: -42.5°S 173.0°E

Area affected: 358815 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_2022-Aug-07_to_2022-Aug-14_173.0_-42.5

Heat wave occuring from July 17 2022 to July 20 2022 at -46.5°S 181.0°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: July 17 2022 to July 20 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 12.2 °C
  • Maximum temperature anomaly: 8.0 °C
  • Maximum temperature: 16.5 °C

Event center: -46.5°S 181.0°E

Area affected: 884082 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_2022-Jul-17_to_2022-Jul-20_181.0_-46.5

Heat wave occuring from June 14 2022 to June 29 2022 at -49.0°S 147.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Australia
  • New Zealand

Duration: 16 days

Time span: June 14 2022 to June 29 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 4.5 °C
  • Maximum temperature anomaly: 15.0 °C
  • Maximum temperature: 14.0 °C

Event center: -49.0°S 147.5°E

Area affected: 4548857 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_2022-Jun-14_to_2022-Jun-29_147.5_-49.0

Cold spell occuring from June 14 2022 to June 16 2022 at -49.5°S 177.0°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: June 14 2022 to June 16 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 4.6 °C
  • Minimum temperature anomaly: -3.4 °C
  • Minimum temperature: 3.2 °C

Event center: -49.5°S 177.0°E

Area affected: 67780 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_2022-Jun-14_to_2022-Jun-16_177.0_-49.5

Heat wave occuring from April 09 2022 to April 11 2022 at -46.5°S 172.0°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: April 09 2022 to April 11 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 12.6 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 14.2 °C

Event center: -46.5°S 172.0°E

Area affected: 83577 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_2022-Apr-09_to_2022-Apr-11_172.0_-46.5

Heat wave occuring from April 09 2022 to April 12 2022 at -34.5°S 171.0°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: April 09 2022 to April 12 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 19.8 °C
  • Maximum temperature anomaly: 2.5 °C
  • Maximum temperature: 20.9 °C

Event center: -34.5°S 171.0°E

Area affected: 64976 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_2022-Apr-09_to_2022-Apr-12_171.0_-34.5

Heat wave occuring from March 28 2022 to March 30 2022 at -47.5°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: 3 days

Time span: March 28 2022 to March 30 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 14.8 °C
  • Maximum temperature anomaly: 3.8 °C
  • Maximum temperature: 17.1 °C

Event center: -47.5°S 167.0°E

Area affected: 116430 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_2022-Mar-28_to_2022-Mar-30_167.0_-47.5