Category: Extremes affecting Hong Kong

Heat wave occuring from June 18 2023 to June 25 2023 at 22.5°N 120.0°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Hong Kong
  • Taiwan, Province of China

Duration: 8 days

Time span: June 18 2023 to June 25 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 29.1 °C
  • Maximum temperature anomaly: 2.5 °C
  • Maximum temperature: 30.8 °C

Event center: 22.5°N 120.0°E

Area affected: 534133 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_2023-Jun-18_to_2023-Jun-25_120.0_22.5

Heat wave occuring from May 18 2023 to May 24 2023 at 22.5°N 113.5°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Hong Kong

Duration: 7 days

Time span: May 18 2023 to May 24 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 29.4 °C
  • Maximum temperature anomaly: 3.6 °C
  • Maximum temperature: 30.3 °C

Event center: 22.5°N 113.5°E

Area affected: 211871 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_2023-May-18_to_2023-May-24_113.5_22.5

Cold spell occuring from May 06 2023 to May 15 2023 at 22.0°N 111.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Hong Kong
  • Lao People’s Democratic Republic
  • Viet Nam

Duration: 10 days

Time span: May 06 2023 to May 15 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.4 °C
  • Mean temperature: 19.2 °C
  • Minimum temperature anomaly: -7.3 °C
  • Minimum temperature: 8.4 °C

Event center: 22.0°N 111.5°E

Area affected: 628581 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_2023-May-06_to_2023-May-15_111.5_22.0

Heat wave occuring from April 15 2023 to April 19 2023 at 23.0°N 116.0°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Hong Kong

Duration: 5 days

Time span: April 15 2023 to April 19 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: 25.1 °C
  • Maximum temperature anomaly: 6.3 °C
  • Maximum temperature: 27.4 °C

Event center: 23.0°N 116.0°E

Area affected: 113290 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_2023-Apr-15_to_2023-Apr-19_116.0_23.0

Heat wave occuring from March 17 2023 to March 29 2023 at 13.5°N 102.0°E

Download data: JSON

Event type: Heat wave

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

  • Cambodia
  • China
  • Hong Kong
  • Lao People’s Democratic Republic
  • Thailand
  • Viet Nam

Duration: 13 days

Time span: March 17 2023 to March 29 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 27.3 °C
  • Maximum temperature anomaly: 10.3 °C
  • Maximum temperature: 33.9 °C

Event center: 13.5°N 102.0°E

Area affected: 1082293 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_2023-Mar-17_to_2023-Mar-29_102.0_13.5

Cold spell occuring from May 12 2022 to May 27 2022 at 25.0°N 119.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Hong Kong
  • Philippines
  • Taiwan, Province of China
  • Viet Nam

Duration: 16 days

Time span: May 12 2022 to May 27 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: 20.1 °C
  • Minimum temperature anomaly: -12.3 °C
  • Minimum temperature: 6.8 °C

Event center: 25.0°N 119.5°E

Area affected: 2296130 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-May-12_to_2022-May-27_119.5_25.0

Cold spell occuring from April 14 2022 to May 10 2022 at 30.5°N 98.0°E

Download data: JSON

Event type: Cold spell

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

  • Cambodia
  • China
  • Hong Kong
  • India
  • Lao People’s Democratic Republic
  • Myanmar
  • Thailand
  • Viet Nam

Duration: 27 days

Time span: April 14 2022 to May 10 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -5.4 °C
  • Mean temperature: 13.8 °C
  • Minimum temperature anomaly: -17.1 °C
  • Minimum temperature: -18.7 °C

Event center: 30.5°N 98.0°E

Area affected: 6322042 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-Apr-14_to_2022-May-10_98.0_30.5

Heat wave occuring from February 19 2022 to January 25 2023 at -11.0°S 150.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Australia
  • Bangladesh
  • Bhutan
  • Cambodia
  • Canada
  • China
  • Christmas Island
  • Cook Islands
  • Fiji
  • French Polynesia
  • Hong Kong
  • India
  • Indonesia
  • Japan
  • Kazakhstan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Kyrgyzstan
  • Lao People’s Democratic Republic
  • Malaysia
  • Maldives
  • Mongolia
  • Myanmar
  • Nepal
  • New Caledonia
  • New Zealand
  • Norfolk Island
  • Northern Mariana Islands
  • Oman
  • Pakistan
  • Papua New Guinea
  • Philippines
  • Russian Federation
  • Solomon Islands
  • Sri Lanka
  • Taiwan, Province of China
  • Thailand
  • Timor-Leste
  • Tonga
  • United States
  • Vanuatu
  • Viet Nam

Duration: 341 days

Time span: February 19 2022 to January 25 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.6 °C
  • Mean temperature: 19.0 °C
  • Maximum temperature anomaly: 33.4 °C
  • Maximum temperature: 37.4 °C

Event center: -11.0°S 150.0°E

Area affected: 154052228 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-Feb-19_to_2023-Jan-25_150.0_-11.0

Cold spell occuring from January 14 2022 to March 01 2022 at 30.0°N 100.5°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • Bangladesh
  • Bhutan
  • Cambodia
  • China
  • Hong Kong
  • India
  • Iran, Islamic Republic of
  • Lao People’s Democratic Republic
  • Myanmar
  • Nepal
  • Oman
  • Pakistan
  • Thailand
  • Viet Nam
  • Yemen

Duration: 47 days

Time span: January 14 2022 to March 01 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -4.4 °C
  • Mean temperature: 7.1 °C
  • Minimum temperature anomaly: -14.6 °C
  • Minimum temperature: -32.2 °C

Event center: 30.0°N 100.5°E

Area affected: 12709175 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-Jan-14_to_2022-Mar-01_100.5_30.0

Cold spell occuring from October 19 2021 to November 30 2021 at 32.5°N 81.0°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • China
  • Hong Kong
  • India
  • Iran, Islamic Republic of
  • Kazakhstan
  • Kyrgyzstan
  • Lao People’s Democratic Republic
  • Mongolia
  • Nepal
  • Pakistan
  • Russian Federation
  • Taiwan, Province of China
  • Tajikistan
  • Turkmenistan
  • Uzbekistan
  • Viet Nam

Duration: 43 days

Time span: October 19 2021 to November 30 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -7.8 °C
  • Mean temperature: -4.0 °C
  • Minimum temperature anomaly: -24.5 °C
  • Minimum temperature: -32.4 °C

Event center: 32.5°N 81.0°E

Area affected: 12856484 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_2021-Oct-19_to_2021-Nov-30_81.0_32.5