Category: Heat waves affecting United States

14 heat waves identified in United States since 2020

Heat wave occuring from August 04 2012 to August 08 2012 at 46.0°N 236.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 5 days

Time span: August 04 2012 to August 08 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 19.4 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 26.2 °C

Event center: 46.0°N 236.5°E

Area affected: 180765 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-Aug-04_to_2012-Aug-08_236.5_46.0

Heat wave occuring from August 02 2012 to August 04 2012 at 43.5°N 272.5°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: August 02 2012 to August 04 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 27.1 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 28.9 °C

Event center: 43.5°N 272.5°E

Area affected: 89013 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-Aug-02_to_2012-Aug-04_272.5_43.5

Heat wave occuring from August 02 2012 to August 06 2012 at 43.5°N 282.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 5 days

Time span: August 02 2012 to August 06 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 25.0 °C
  • Maximum temperature anomaly: 6.7 °C
  • Maximum temperature: 28.6 °C

Event center: 43.5°N 282.0°E

Area affected: 283771 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-Aug-02_to_2012-Aug-06_282.0_43.5

Heat wave occuring from July 30 2012 to August 03 2012 at 48.5°N 291.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 5 days

Time span: July 30 2012 to August 03 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 20.6 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 25.0 °C

Event center: 48.5°N 291.0°E

Area affected: 193299 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-Jul-30_to_2012-Aug-03_291.0_48.5

Heat wave occuring from July 30 2012 to August 04 2012 at 40.5°N 266.0°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: July 30 2012 to August 04 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.7 °C
  • Mean temperature: 27.9 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 30.4 °C

Event center: 40.5°N 266.0°E

Area affected: 80074 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-Jul-30_to_2012-Aug-04_266.0_40.5

Heat wave occuring from July 27 2012 to July 31 2012 at 68.0°N 224.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 5 days

Time span: July 27 2012 to July 31 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 5.5 °C
  • Mean temperature: 18.5 °C
  • Maximum temperature anomaly: 8.9 °C
  • Maximum temperature: 23.6 °C

Event center: 68.0°N 224.5°E

Area affected: 63980 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-Jul-27_to_2012-Jul-31_224.5_68.0

Heat wave occuring from July 27 2012 to August 08 2012 at 33.5°N 264.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 13 days

Time span: July 27 2012 to August 08 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.5 °C
  • Mean temperature: 31.6 °C
  • Maximum temperature anomaly: 9.5 °C
  • Maximum temperature: 37.7 °C

Event center: 33.5°N 264.5°E

Area affected: 1676706 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-Jul-27_to_2012-Aug-08_264.5_33.5

Heat wave occuring from July 22 2012 to July 27 2012 at 32.5°N 274.5°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: July 22 2012 to July 27 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 3.1 °C
  • Mean temperature: 30.0 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 32.4 °C

Event center: 32.5°N 274.5°E

Area affected: 145258 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-Jul-22_to_2012-Jul-27_274.5_32.5

Heat wave occuring from July 16 2012 to July 19 2012 at 38.0°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: 4 days

Time span: July 16 2012 to July 19 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 27.3 °C
  • Maximum temperature anomaly: 3.8 °C
  • Maximum temperature: 29.6 °C

Event center: 38.0°N 285.0°E

Area affected: 56053 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-Jul-16_to_2012-Jul-19_285.0_38.0

Heat wave occuring from June 29 2012 to July 19 2012 at 43.5°N 294.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 21 days

Time span: June 29 2012 to July 19 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 17.6 °C
  • Maximum temperature anomaly: 4.3 °C
  • Maximum temperature: 25.3 °C

Event center: 43.5°N 294.0°E

Area affected: 288719 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-Jun-29_to_2012-Jul-19_294.0_43.5