Category: Heat waves affecting United States

Heat wave occuring from December 12 2023 to December 18 2023 at 59.5°N 236.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 7 days

Time span: December 12 2023 to December 18 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 12.8 °C
  • Mean temperature: -2.9 °C
  • Maximum temperature anomaly: 21.5 °C
  • Maximum temperature: 5.5 °C

Event center: 59.5°N 236.0°E

Area affected: 400378 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-Dec-12_to_2023-Dec-18_236.0_59.5

Heat wave occuring from December 08 2023 to December 10 2023 at 43.5°N 278.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 3 days

Time span: December 08 2023 to December 10 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 7.5 °C
  • Mean temperature: 6.8 °C
  • Maximum temperature anomaly: 13.3 °C
  • Maximum temperature: 11.9 °C

Event center: 43.5°N 278.5°E

Area affected: 76358 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-Dec-08_to_2023-Dec-10_278.5_43.5

Heat wave occuring from December 04 2023 to December 07 2023 at 37.5°N 242.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 4 days

Time span: December 04 2023 to December 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.2 °C
  • Mean temperature: 11.0 °C
  • Maximum temperature anomaly: 8.5 °C
  • Maximum temperature: 16.9 °C

Event center: 37.5°N 242.5°E

Area affected: 104737 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-Dec-04_to_2023-Dec-07_242.5_37.5

Heat wave occuring from November 13 2023 to November 17 2023 at 40.5°N 247.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 5 days

Time span: November 13 2023 to November 17 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 6.6 °C
  • Mean temperature: 8.8 °C
  • Maximum temperature anomaly: 9.4 °C
  • Maximum temperature: 14.2 °C

Event center: 40.5°N 247.0°E

Area affected: 68818 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-Nov-13_to_2023-Nov-17_247.0_40.5

Heat wave occuring from November 13 2023 to November 16 2023 at 46.5°N 268.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 4 days

Time span: November 13 2023 to November 16 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 8.9 °C
  • Mean temperature: 9.8 °C
  • Maximum temperature anomaly: 12.5 °C
  • Maximum temperature: 13.7 °C

Event center: 46.5°N 268.0°E

Area affected: 220900 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-Nov-13_to_2023-Nov-16_268.0_46.5

Heat wave occuring from November 06 2023 to November 18 2023 at 66.5°N 215.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 13 days

Time span: November 06 2023 to November 18 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 10.9 °C
  • Mean temperature: -7.1 °C
  • Maximum temperature anomaly: 15.5 °C
  • Maximum temperature: 1.2 °C

Event center: 66.5°N 215.5°E

Area affected: 341597 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-Nov-06_to_2023-Nov-18_215.5_66.5

Heat wave occuring from November 02 2023 to November 06 2023 at 42.5°N 237.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 5 days

Time span: November 02 2023 to November 06 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 12.6 °C
  • Maximum temperature anomaly: 8.2 °C
  • Maximum temperature: 16.6 °C

Event center: 42.5°N 237.0°E

Area affected: 53788 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-Nov-02_to_2023-Nov-06_237.0_42.5

Heat wave occuring from November 02 2023 to November 07 2023 at 37.5°N 239.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 6 days

Time span: November 02 2023 to November 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 15.4 °C
  • Maximum temperature anomaly: 8.6 °C
  • Maximum temperature: 21.1 °C

Event center: 37.5°N 239.0°E

Area affected: 156017 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-Nov-02_to_2023-Nov-07_239.0_37.5

Heat wave occuring from October 30 2023 to November 07 2023 at 57.5°N 228.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 9 days

Time span: October 30 2023 to November 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 1.8 °C
  • Maximum temperature anomaly: 7.0 °C
  • Maximum temperature: 9.4 °C

Event center: 57.5°N 228.5°E

Area affected: 150639 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-Oct-30_to_2023-Nov-07_228.5_57.5

Heat wave occuring from October 09 2023 to October 12 2023 at 35.0°N 258.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 4 days

Time span: October 09 2023 to October 12 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.6 °C
  • Mean temperature: 21.8 °C
  • Maximum temperature anomaly: 7.6 °C
  • Maximum temperature: 25.0 °C

Event center: 35.0°N 258.5°E

Area affected: 53477 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-Oct-09_to_2023-Oct-12_258.5_35.0