Category: Heat waves affecting United States

Heat wave occuring from March 04 2023 to March 07 2023 at 48.5°N 272.5°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: March 04 2023 to March 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 8.2 °C
  • Mean temperature: -0.1 °C
  • Maximum temperature anomaly: 9.4 °C
  • Maximum temperature: 0.6 °C

Event center: 48.5°N 272.5°E

Area affected: 56162 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-04_to_2023-Mar-07_272.5_48.5

Heat wave occuring from February 15 2023 to March 17 2023 at 30.0°N 270.5°E

Download data: JSON

Event type: Heat wave

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

  • Bahamas
  • Belize
  • Cuba
  • Guatemala
  • Honduras
  • Mexico
  • United States

Duration: 31 days

Time span: February 15 2023 to March 17 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 22.9 °C
  • Maximum temperature anomaly: 14.2 °C
  • Maximum temperature: 31.7 °C

Event center: 30.0°N 270.5°E

Area affected: 6683287 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-Feb-15_to_2023-Mar-17_270.5_30.0

Heat wave occuring from February 13 2023 to March 15 2023 at 42.5°N 197.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 31 days

Time span: February 13 2023 to March 15 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 9.7 °C
  • Maximum temperature anomaly: 23.6 °C
  • Maximum temperature: 25.8 °C

Event center: 42.5°N 197.0°E

Area affected: 11621576 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-Feb-13_to_2023-Mar-15_197.0_42.5

Heat wave occuring from February 07 2023 to February 17 2023 at 48.5°N 272.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 11 days

Time span: February 07 2023 to February 17 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 10.3 °C
  • Mean temperature: 3.5 °C
  • Maximum temperature anomaly: 19.3 °C
  • Maximum temperature: 24.2 °C

Event center: 48.5°N 272.5°E

Area affected: 3346791 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-Feb-07_to_2023-Feb-17_272.5_48.5

Heat wave occuring from January 20 2023 to February 03 2023 at 62.5°N 211.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 15 days

Time span: January 20 2023 to February 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 12.0 °C
  • Mean temperature: -4.8 °C
  • Maximum temperature anomaly: 23.0 °C
  • Maximum temperature: 8.6 °C

Event center: 62.5°N 211.5°E

Area affected: 774579 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-Jan-20_to_2023-Feb-03_211.5_62.5

Heat wave occuring from January 11 2023 to January 19 2023 at 50.0°N 242.5°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: January 11 2023 to January 19 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 6.4 °C
  • Mean temperature: 3.7 °C
  • Maximum temperature anomaly: 11.9 °C
  • Maximum temperature: 12.1 °C

Event center: 50.0°N 242.5°E

Area affected: 536694 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-Jan-11_to_2023-Jan-19_242.5_50.0

Heat wave occuring from January 07 2023 to January 10 2023 at 38.0°N 238.5°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: January 07 2023 to January 10 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 4.1 °C
  • Mean temperature: 13.3 °C
  • Maximum temperature anomaly: 5.6 °C
  • Maximum temperature: 15.1 °C

Event center: 38.0°N 238.5°E

Area affected: 53875 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-Jan-07_to_2023-Jan-10_238.5_38.0

Heat wave occuring from January 05 2023 to February 12 2023 at 22.0°N 278.0°E

Download data: JSON

Event type: Heat wave

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

  • Bahamas
  • Belize
  • Canada
  • Cuba
  • El Salvador
  • Guatemala
  • Haiti
  • Honduras
  • Jamaica
  • Mexico
  • Nicaragua
  • Turks and Caicos Islands
  • United States

Duration: 39 days

Time span: January 05 2023 to February 12 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 8.0 °C
  • Mean temperature: 7.6 °C
  • Maximum temperature anomaly: 23.5 °C
  • Maximum temperature: 29.3 °C

Event center: 22.0°N 278.0°E

Area affected: 11571951 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-Jan-05_to_2023-Feb-12_278.0_22.0

Heat wave occuring from January 01 2023 to January 03 2023 at 32.5°N 263.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 3 days

Time span: January 01 2023 to January 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 10.0 °C
  • Mean temperature: 17.7 °C
  • Maximum temperature anomaly: 12.6 °C
  • Maximum temperature: 21.4 °C

Event center: 32.5°N 263.0°E

Area affected: 83324 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-Jan-01_to_2023-Jan-03_263.0_32.5

Heat wave occuring from December 26 2022 to January 13 2023 at 22.0°N 261.5°E

Download data: JSON

Event type: Heat wave

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

  • Bahamas
  • Belize
  • Canada
  • Cuba
  • El Salvador
  • Guatemala
  • Honduras
  • Mexico
  • United States

Duration: 19 days

Time span: December 26 2022 to January 13 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 6.9 °C
  • Mean temperature: 15.7 °C
  • Maximum temperature anomaly: 20.3 °C
  • Maximum temperature: 28.7 °C

Event center: 22.0°N 261.5°E

Area affected: 6940746 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-Dec-26_to_2023-Jan-13_261.5_22.0