Category: Cold spells affecting New Zealand

Download data: JSON

Event type: Cold spell

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

• New Zealand

Duration: 9 days

Time span: July 29 2024 to August 06 2024

Statistics over entire affected area:

• Mean temperature anomaly: -4.6 °C
• Mean temperature: -0.5 °C
• Minimum temperature anomaly: -10.0 °C
• Minimum temperature: -7.8 °C

Event center: -45.5°S 170.0°E

Area affected: 119569 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-Jul-29_to_2024-Aug-06_170.0_-45.5

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: May 06 2024 to May 13 2024

Statistics over entire affected area:

• Mean temperature anomaly: -2.6 °C
• Mean temperature: 12.6 °C
• Minimum temperature anomaly: -8.0 °C
• Minimum temperature: -1.6 °C

Event center: -38.0°S 176.5°E

Area affected: 1504065 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-May-06_to_2024-May-13_176.5_-38.0

Download data: JSON

Event type: Cold spell

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

• New Zealand

Duration: 5 days

Time span: March 28 2024 to April 01 2024

Statistics over entire affected area:

• Mean temperature anomaly: -2.4 °C
• Mean temperature: 16.2 °C
• Minimum temperature anomaly: -6.5 °C
• Minimum temperature: 5.4 °C

Event center: -37.0°S 175.0°E

Area affected: 288979 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-Mar-28_to_2024-Apr-01_175.0_-37.0

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: March 27 2024 to April 01 2024

Statistics over entire affected area:

• Mean temperature anomaly: -3.0 °C
• Mean temperature: 13.3 °C
• Minimum temperature anomaly: -6.7 °C
• Minimum temperature: 6.8 °C

Event center: -38.0°S 179.5°E

Area affected: 230730 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-Mar-27_to_2024-Apr-01_179.5_-38.0

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: March 14 2024 to March 19 2024

Statistics over entire affected area:

• Mean temperature anomaly: -2.0 °C
• Mean temperature: 7.0 °C
• Minimum temperature anomaly: -3.2 °C
• Minimum temperature: 4.5 °C

Event center: -49.0°S 177.5°E

Area affected: 755170 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-Mar-14_to_2024-Mar-19_177.5_-49.0

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: March 13 2024 to March 22 2024

Statistics over entire affected area:

• Mean temperature anomaly: -2.5 °C
• Mean temperature: 14.7 °C
• Minimum temperature anomaly: -6.5 °C
• Minimum temperature: 5.5 °C

Event center: -38.0°S 175.5°E

Area affected: 508969 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-Mar-13_to_2024-Mar-22_175.5_-38.0

Download data: JSON

Event type: Cold spell

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

• New Zealand

Duration: 5 days

Time span: February 09 2024 to February 13 2024

Statistics over entire affected area:

• Mean temperature anomaly: -2.2 °C
• Mean temperature: 16.2 °C
• Minimum temperature anomaly: -6.4 °C
• Minimum temperature: 4.3 °C

Event center: -41.0°S 172.0°E

Area affected: 349664 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-Feb-09_to_2024-Feb-13_172.0_-41.0