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: 6 days

Time span: July 21 2011 to July 26 2011

Statistics over entire affected area:

• Mean temperature anomaly: -2.6 °C
• Mean temperature: 8.7 °C
• Minimum temperature anomaly: -11.3 °C
• Minimum temperature: -13.6 °C

Event center: -44.5°S 169.5°E

Area affected: 1411794 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_2011-Jul-21_to_2011-Jul-26_169.5_-44.5

Download data: JSON

Event type: Cold spell

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

• New Zealand

Duration: 13 days

Time span: July 02 2011 to July 14 2011

Statistics over entire affected area:

• Mean temperature anomaly: -4.2 °C
• Mean temperature: 0.3 °C
• Minimum temperature anomaly: -12.5 °C
• Minimum temperature: -20.0 °C

Event center: -53.5°S 142.5°E

Area affected: 5390539 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_2011-Jul-02_to_2011-Jul-14_142.5_-53.5

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: April 24 2011 to April 29 2011

Statistics over entire affected area:

• Mean temperature anomaly: -3.0 °C
• Mean temperature: 9.1 °C
• Minimum temperature anomaly: -7.2 °C
• Minimum temperature: -1.3 °C

Event center: -46.0°S 169.0°E

Area affected: 417357 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_2011-Apr-24_to_2011-Apr-29_169.0_-46.0

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: April 04 2011 to April 07 2011

Statistics over entire affected area:

• Mean temperature anomaly: -3.0 °C
• Mean temperature: 9.7 °C
• Minimum temperature anomaly: -4.8 °C
• Minimum temperature: 5.0 °C

Event center: -45.0°S 178.5°E

Area affected: 498961 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_2011-Apr-04_to_2011-Apr-07_178.5_-45.0

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 06 2011 to March 10 2011

Statistics over entire affected area:

• Mean temperature anomaly: -3.7 °C
• Mean temperature: 13.2 °C
• Minimum temperature anomaly: -6.7 °C
• Minimum temperature: 5.8 °C

Event center: -35.0°S 173.5°E

Area affected: 155027 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_2011-Mar-06_to_2011-Mar-10_173.5_-35.0

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: January 11 2011 to January 13 2011

Statistics over entire affected area:

• Mean temperature anomaly: -2.5 °C
• Mean temperature: 11.3 °C
• Minimum temperature anomaly: -3.1 °C
• Minimum temperature: 10.1 °C

Event center: -46.0°S 181.5°E

Area affected: 96010 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_2011-Jan-11_to_2011-Jan-13_181.5_-46.0

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: 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

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