Category: Extremes affecting United States

Heat wave occuring from February 26 2024 to February 28 2024 at 45.0°N 285.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 3 days

Time span: February 26 2024 to February 28 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 10.1 °C
  • Mean temperature: 6.8 °C
  • Maximum temperature anomaly: 17.2 °C
  • Maximum temperature: 15.8 °C

Event center: 45.0°N 285.5°E

Area affected: 254263 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-Feb-26_to_2024-Feb-28_285.5_45.0

Cold spell occuring from February 25 2024 to March 08 2024 at 58.5°N 232.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 13 days

Time span: February 25 2024 to March 08 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -7.9 °C
  • Mean temperature: -12.0 °C
  • Minimum temperature anomaly: -20.3 °C
  • Minimum temperature: -41.0 °C

Event center: 58.5°N 232.0°E

Area affected: 5030606 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-Feb-25_to_2024-Mar-08_232.0_58.5

Heat wave occuring from February 21 2024 to February 26 2024 at 45.0°N 258.5°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 21 2024 to February 26 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 10.2 °C
  • Mean temperature: 5.6 °C
  • Maximum temperature anomaly: 14.7 °C
  • Maximum temperature: 11.7 °C

Event center: 45.0°N 258.5°E

Area affected: 236474 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-Feb-21_to_2024-Feb-26_258.5_45.0

Cold spell occuring from February 20 2024 to February 26 2024 at 22.5°N 276.5°E

Download data: JSON

Event type: Cold spell

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

  • Cuba
  • Honduras
  • Nicaragua
  • United States

Duration: 7 days

Time span: February 20 2024 to February 26 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 21.8 °C
  • Minimum temperature anomaly: -6.3 °C
  • Minimum temperature: 14.1 °C

Event center: 22.5°N 276.5°E

Area affected: 685338 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-Feb-20_to_2024-Feb-26_276.5_22.5

Heat wave occuring from February 20 2024 to February 23 2024 at 42.5°N 269.5°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: February 20 2024 to February 23 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 8.9 °C
  • Mean temperature: 7.2 °C
  • Maximum temperature anomaly: 12.6 °C
  • Maximum temperature: 13.5 °C

Event center: 42.5°N 269.5°E

Area affected: 201665 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-Feb-20_to_2024-Feb-23_269.5_42.5

Heat wave occuring from February 17 2024 to February 25 2024 at 50.5°N 234.5°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: February 17 2024 to February 25 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 7.5 °C
  • Mean temperature: 0.6 °C
  • Maximum temperature anomaly: 13.1 °C
  • Maximum temperature: 8.0 °C

Event center: 50.5°N 234.5°E

Area affected: 460212 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-Feb-17_to_2024-Feb-25_234.5_50.5

Cold spell occuring from February 16 2024 to February 19 2024 at 23.0°N 201.0°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: February 16 2024 to February 19 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -1.7 °C
  • Mean temperature: 20.2 °C
  • Minimum temperature anomaly: -2.7 °C
  • Minimum temperature: 17.3 °C

Event center: 23.0°N 201.0°E

Area affected: 333235 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-Feb-16_to_2024-Feb-19_201.0_23.0

Heat wave occuring from February 13 2024 to February 26 2024 at 37.5°N 235.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 14 days

Time span: February 13 2024 to February 26 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 16.3 °C
  • Maximum temperature anomaly: 3.2 °C
  • Maximum temperature: 21.6 °C

Event center: 37.5°N 235.0°E

Area affected: 1620483 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-Feb-13_to_2024-Feb-26_235.0_37.5

Heat wave occuring from February 10 2024 to February 23 2024 at 61.0°N 212.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 14 days

Time span: February 10 2024 to February 23 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 6.1 °C
  • Mean temperature: 1.7 °C
  • Maximum temperature anomaly: 22.3 °C
  • Maximum temperature: 9.4 °C

Event center: 61.0°N 212.5°E

Area affected: 2286443 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-Feb-10_to_2024-Feb-23_212.5_61.0

Heat wave occuring from February 10 2024 to February 13 2024 at 35.0°N 281.0°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: February 10 2024 to February 13 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 8.3 °C
  • Mean temperature: 15.8 °C
  • Maximum temperature anomaly: 10.1 °C
  • Maximum temperature: 17.9 °C

Event center: 35.0°N 281.0°E

Area affected: 53108 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-Feb-10_to_2024-Feb-13_281.0_35.0