Category: Extremes affecting United States

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

Cold spell occuring from January 17 2023 to February 03 2023 at 36.5°N 247.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 18 days

Time span: January 17 2023 to February 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 4.0 °C
  • Minimum temperature anomaly: -13.6 °C
  • Minimum temperature: -15.3 °C

Event center: 36.5°N 247.0°E

Area affected: 1311308 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-Jan-17_to_2023-Feb-03_247.0_36.5

Cold spell occuring from January 14 2023 to January 16 2023 at 25.5°N 281.0°E

Download data: JSON

Event type: Cold spell

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

  • Bahamas
  • United States

Duration: 3 days

Time span: January 14 2023 to January 16 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 16.6 °C
  • Minimum temperature anomaly: -9.0 °C
  • Minimum temperature: 7.1 °C

Event center: 25.5°N 281.0°E

Area affected: 231685 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-Jan-14_to_2023-Jan-16_281.0_25.5

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

Heat wave occuring from December 25 2022 to December 29 2022 at 38.0°N 255.5°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: December 25 2022 to December 29 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 7.7 °C
  • Mean temperature: -0.3 °C
  • Maximum temperature anomaly: 11.8 °C
  • Maximum temperature: 10.0 °C

Event center: 38.0°N 255.5°E

Area affected: 131113 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-25_to_2022-Dec-29_255.5_38.0

Heat wave occuring from December 23 2022 to December 28 2022 at 34.5°N 245.0°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 6 days

Time span: December 23 2022 to December 28 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 4.5 °C
  • Mean temperature: 14.6 °C
  • Maximum temperature anomaly: 8.7 °C
  • Maximum temperature: 21.4 °C

Event center: 34.5°N 245.0°E

Area affected: 567541 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-23_to_2022-Dec-28_245.0_34.5