Category: Heat waves affecting United States

14 heat waves identified in United States since 2020

Heat wave occuring from April 13 2012 to April 16 2012 at 45.5°N 273.0°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: April 13 2012 to April 16 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 5.8 °C
  • Mean temperature: 8.7 °C
  • Maximum temperature anomaly: 10.4 °C
  • Maximum temperature: 16.8 °C

Event center: 45.5°N 273.0°E

Area affected: 170513 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_2012-Apr-13_to_2012-Apr-16_273.0_45.5

Heat wave occuring from April 12 2012 to April 20 2012 at 63.0°N 217.0°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: April 12 2012 to April 20 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 2.8 °C
  • Maximum temperature anomaly: 7.3 °C
  • Maximum temperature: 8.4 °C

Event center: 63.0°N 217.0°E

Area affected: 81561 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_2012-Apr-12_to_2012-Apr-20_217.0_63.0

Heat wave occuring from April 10 2012 to April 16 2012 at 29.5°N 266.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 7 days

Time span: April 10 2012 to April 16 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 24.8 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 28.0 °C

Event center: 29.5°N 266.5°E

Area affected: 199165 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_2012-Apr-10_to_2012-Apr-16_266.5_29.5

Heat wave occuring from April 09 2012 to April 17 2012 at 58.0°N 225.5°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: April 09 2012 to April 17 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 2.5 °C
  • Maximum temperature anomaly: 7.3 °C
  • Maximum temperature: 9.5 °C

Event center: 58.0°N 225.5°E

Area affected: 254573 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_2012-Apr-09_to_2012-Apr-17_225.5_58.0

Heat wave occuring from April 09 2012 to April 11 2012 at 43.0°N 245.5°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: April 09 2012 to April 11 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 7.4 °C
  • Mean temperature: 14.5 °C
  • Maximum temperature anomaly: 9.8 °C
  • Maximum temperature: 19.2 °C

Event center: 43.0°N 245.5°E

Area affected: 61706 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_2012-Apr-09_to_2012-Apr-11_245.5_43.0

Heat wave occuring from April 08 2012 to April 11 2012 at 35.0°N 251.0°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: April 08 2012 to April 11 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.3 °C
  • Mean temperature: 13.4 °C
  • Maximum temperature anomaly: 9.4 °C
  • Maximum temperature: 20.5 °C

Event center: 35.0°N 251.0°E

Area affected: 145794 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_2012-Apr-08_to_2012-Apr-11_251.0_35.0

Heat wave occuring from March 19 2012 to May 02 2012 at 67.5°N 324.5°E

Download data: JSON

Event type: Heat wave

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

  • Azores
  • Canada
  • Denmark
  • Faroe Islands
  • Greenland
  • Iceland
  • Ireland
  • Norway
  • Sweden
  • United Kingdom
  • United States

Duration: 45 days

Time span: March 19 2012 to May 02 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.3 °C
  • Mean temperature: 2.6 °C
  • Maximum temperature anomaly: 21.3 °C
  • Maximum temperature: 24.5 °C

Event center: 67.5°N 324.5°E

Area affected: 13224349 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_2012-Mar-19_to_2012-May-02_324.5_67.5

Heat wave occuring from March 09 2012 to April 08 2012 at 45.0°N 265.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Mexico
  • United States

Duration: 31 days

Time span: March 09 2012 to April 08 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 10.0 °C
  • Mean temperature: 13.6 °C
  • Maximum temperature anomaly: 27.0 °C
  • Maximum temperature: 30.5 °C

Event center: 45.0°N 265.5°E

Area affected: 11896123 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_2012-Mar-09_to_2012-Apr-08_265.5_45.0

Heat wave occuring from February 27 2012 to March 03 2012 at 28.5°N 279.5°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: February 27 2012 to March 03 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 23.9 °C
  • Maximum temperature anomaly: 6.2 °C
  • Maximum temperature: 25.7 °C

Event center: 28.5°N 279.5°E

Area affected: 66239 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_2012-Feb-27_to_2012-Mar-03_279.5_28.5

Heat wave occuring from February 27 2012 to March 04 2012 at 36.5°N 285.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 7 days

Time span: February 27 2012 to March 04 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.5 °C
  • Mean temperature: 21.0 °C
  • Maximum temperature anomaly: 13.0 °C
  • Maximum temperature: 26.1 °C

Event center: 36.5°N 285.0°E

Area affected: 1481781 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_2012-Feb-27_to_2012-Mar-04_285.0_36.5