Category: Extremes affecting United States

Heat wave occuring from June 30 2024 to July 29 2024 at 38.5°N 239.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Mexico
  • United States

Duration: 30 days

Time span: June 30 2024 to July 29 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: 21.9 °C
  • Maximum temperature anomaly: 13.2 °C
  • Maximum temperature: 41.2 °C

Event center: 38.5°N 239.5°E

Area affected: 12606702 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_2024-Jun-30_to_2024-Jul-29_239.5_38.5

Cold spell occuring from June 29 2024 to July 10 2024 at 47.5°N 199.0°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 12 days

Time span: June 29 2024 to July 10 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 8.2 °C
  • Minimum temperature anomaly: -2.4 °C
  • Minimum temperature: 4.8 °C

Event center: 47.5°N 199.0°E

Area affected: 704072 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_2024-Jun-29_to_2024-Jul-10_199.0_47.5

Heat wave occuring from June 23 2024 to June 26 2024 at 34.0°N 264.5°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: June 23 2024 to June 26 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 3.7 °C
  • Mean temperature: 30.7 °C
  • Maximum temperature anomaly: 4.7 °C
  • Maximum temperature: 31.7 °C

Event center: 34.0°N 264.5°E

Area affected: 61680 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_2024-Jun-23_to_2024-Jun-26_264.5_34.0

Heat wave occuring from June 22 2024 to June 28 2024 at 34.5°N 244.5°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: June 22 2024 to June 28 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 5.0 °C
  • Mean temperature: 30.1 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 38.9 °C

Event center: 34.5°N 244.5°E

Area affected: 524405 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_2024-Jun-22_to_2024-Jun-28_244.5_34.5

Heat wave occuring from June 20 2024 to July 05 2024 at 64.5°N 198.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 16 days

Time span: June 20 2024 to July 05 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 5.6 °C
  • Mean temperature: 14.9 °C
  • Maximum temperature anomaly: 13.1 °C
  • Maximum temperature: 25.3 °C

Event center: 64.5°N 198.5°E

Area affected: 1026971 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_2024-Jun-20_to_2024-Jul-05_198.5_64.5

Cold spell occuring from June 19 2024 to June 24 2024 at 24.0°N 261.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 6 days

Time span: June 19 2024 to June 24 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -3.8 °C
  • Mean temperature: 23.6 °C
  • Minimum temperature anomaly: -6.1 °C
  • Minimum temperature: 16.7 °C

Event center: 24.0°N 261.0°E

Area affected: 247605 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_2024-Jun-19_to_2024-Jun-24_261.0_24.0

Cold spell occuring from June 18 2024 to June 21 2024 at 45.0°N 259.0°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 4 days

Time span: June 18 2024 to June 21 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 15.0 °C
  • Minimum temperature anomaly: -8.0 °C
  • Minimum temperature: 11.7 °C

Event center: 45.0°N 259.0°E

Area affected: 74422 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_2024-Jun-18_to_2024-Jun-21_259.0_45.0

Cold spell occuring from June 15 2024 to June 20 2024 at 51.0°N 244.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 6 days

Time span: June 15 2024 to June 20 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -5.9 °C
  • Mean temperature: 8.1 °C
  • Minimum temperature anomaly: -11.6 °C
  • Minimum temperature: -3.5 °C

Event center: 51.0°N 244.5°E

Area affected: 1875784 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_2024-Jun-15_to_2024-Jun-20_244.5_51.0

Heat wave occuring from June 14 2024 to June 18 2024 at 34.5°N 275.0°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: June 14 2024 to June 18 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 27.7 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 30.9 °C

Event center: 34.5°N 275.0°E

Area affected: 107743 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_2024-Jun-14_to_2024-Jun-18_275.0_34.5

Cold spell occuring from June 12 2024 to June 16 2024 at 57.5°N 197.0°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 5 days

Time span: June 12 2024 to June 16 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 3.0 °C
  • Minimum temperature anomaly: -4.3 °C
  • Minimum temperature: 1.0 °C

Event center: 57.5°N 197.0°E

Area affected: 69067 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_2024-Jun-12_to_2024-Jun-16_197.0_57.5