Category: Extremes affecting Australia

Download data: JSON

Event type: Cold spell

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

• Australia

Duration: 4 days

Time span: May 27 2025 to May 30 2025

Statistics over entire affected area:

• Mean temperature anomaly: -4.5 °C
• Mean temperature: 11.9 °C
• Minimum temperature anomaly: -5.8 °C
• Minimum temperature: 9.7 °C

Event center: -24.5°S 128.5°E

Area affected: 56241 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-May-27_to_2025-May-30_128.5_-24.5

Download data: JSON

Event type: Cold spell

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

• Australia

Duration: 9 days

Time span: May 25 2025 to June 02 2025

Statistics over entire affected area:

• Mean temperature anomaly: -4.8 °C
• Mean temperature: 15.6 °C
• Minimum temperature anomaly: -7.5 °C
• Minimum temperature: 9.0 °C

Event center: -18.0°S 122.0°E

Area affected: 598936 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-May-25_to_2025-Jun-02_122.0_-18.0

Download data: JSON

Event type: Cold spell

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

• Australia

Duration: 3 days

Time span: May 23 2025 to May 25 2025

Statistics over entire affected area:

• Mean temperature anomaly: -3.2 °C
• Mean temperature: 10.6 °C
• Minimum temperature anomaly: -5.1 °C
• Minimum temperature: 7.6 °C

Event center: -32.5°S 121.0°E

Area affected: 54730 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-May-23_to_2025-May-25_121.0_-32.5

Download data: JSON

Event type: Cold spell

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

• Australia

Duration: 4 days

Time span: May 17 2025 to May 20 2025

Statistics over entire affected area:

• Mean temperature anomaly: -4.6 °C
• Mean temperature: 14.6 °C
• Minimum temperature anomaly: -6.7 °C
• Minimum temperature: 11.4 °C

Event center: -23.5°S 142.0°E

Area affected: 76356 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-May-17_to_2025-May-20_142.0_-23.5

Download data: JSON

Event type: Cold spell

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

• Australia

Duration: 6 days

Time span: May 17 2025 to May 22 2025

Statistics over entire affected area:

• Mean temperature anomaly: -3.9 °C
• Mean temperature: 8.8 °C
• Minimum temperature anomaly: -6.0 °C
• Minimum temperature: 0.9 °C

Event center: -37.0°S 140.0°E

Area affected: 431705 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-May-17_to_2025-May-22_140.0_-37.0

Download data: JSON

Event type: Cold spell

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

• Australia

Duration: 11 days

Time span: May 16 2025 to May 26 2025

Statistics over entire affected area:

• Mean temperature anomaly: -3.6 °C
• Mean temperature: 20.2 °C
• Minimum temperature anomaly: -5.7 °C
• Minimum temperature: 15.5 °C

Event center: -20.0°S 119.0°E

Area affected: 502723 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-May-16_to_2025-May-26_119.0_-20.0

Download data: JSON

Event type: Cold spell

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

• Australia

Duration: 7 days

Time span: May 16 2025 to May 22 2025

Statistics over entire affected area:

• Mean temperature anomaly: -2.2 °C
• Mean temperature: 23.6 °C
• Minimum temperature anomaly: -5.3 °C
• Minimum temperature: 19.4 °C

Event center: -13.0°S 134.0°E

Area affected: 179870 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-May-16_to_2025-May-22_134.0_-13.0