Category: Extremes affecting United States

Cold spell occuring from June 02 2020 to June 18 2020 at 29.5°N 298.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 17 days

Time span: June 02 2020 to June 18 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 21.6 °C
  • Minimum temperature anomaly: -10.1 °C
  • Minimum temperature: 11.5 °C

Event center: 29.5°N 298.5°E

Area affected: 2683558 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_2020-Jun-02_to_2020-Jun-18_298.5_29.5

Cold spell occuring from May 30 2020 to June 02 2020 at 46.0°N 288.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 4 days

Time span: May 30 2020 to June 02 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.6 °C
  • Mean temperature: 6.9 °C
  • Minimum temperature anomaly: -9.6 °C
  • Minimum temperature: 1.1 °C

Event center: 46.0°N 288.0°E

Area affected: 208570 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_2020-May-30_to_2020-Jun-02_288.0_46.0

Cold spell occuring from May 29 2020 to June 05 2020 at 25.0°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: 8 days

Time span: May 29 2020 to June 05 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 23.9 °C
  • Minimum temperature anomaly: -6.1 °C
  • Minimum temperature: 13.2 °C

Event center: 25.0°N 261.0°E

Area affected: 550042 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_2020-May-29_to_2020-Jun-05_261.0_25.0

Heat wave occuring from May 28 2020 to June 16 2020 at 30.5°N 241.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 20 days

Time span: May 28 2020 to June 16 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 19.0 °C
  • Maximum temperature anomaly: 7.9 °C
  • Maximum temperature: 33.2 °C

Event center: 30.5°N 241.5°E

Area affected: 1172014 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_2020-May-28_to_2020-Jun-16_241.5_30.5

Cold spell occuring from May 25 2020 to May 28 2020 at 31.0°N 264.5°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: May 25 2020 to May 28 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 21.2 °C
  • Minimum temperature anomaly: -5.0 °C
  • Minimum temperature: 19.8 °C

Event center: 31.0°N 264.5°E

Area affected: 70615 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_2020-May-25_to_2020-May-28_264.5_31.0

Heat wave occuring from May 24 2020 to May 27 2020 at 46.5°N 272.0°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: May 24 2020 to May 27 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 7.4 °C
  • Mean temperature: 23.3 °C
  • Maximum temperature anomaly: 9.6 °C
  • Maximum temperature: 26.0 °C

Event center: 46.5°N 272.0°E

Area affected: 90489 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_2020-May-24_to_2020-May-27_272.0_46.5

Heat wave occuring from May 23 2020 to June 09 2020 at 39.0°N 258.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Mexico
  • United States

Duration: 18 days

Time span: May 23 2020 to June 09 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 6.1 °C
  • Mean temperature: 25.3 °C
  • Maximum temperature anomaly: 11.7 °C
  • Maximum temperature: 36.7 °C

Event center: 39.0°N 258.5°E

Area affected: 3450574 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_2020-May-23_to_2020-Jun-09_258.5_39.0

Heat wave occuring from May 22 2020 to May 31 2020 at 49.0°N 295.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 10 days

Time span: May 22 2020 to May 31 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 8.0 °C
  • Mean temperature: 20.4 °C
  • Maximum temperature anomaly: 14.5 °C
  • Maximum temperature: 28.7 °C

Event center: 49.0°N 295.0°E

Area affected: 1070490 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_2020-May-22_to_2020-May-31_295.0_49.0

Cold spell occuring from May 20 2020 to May 24 2020 at 43.0°N 243.0°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: May 20 2020 to May 24 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.5 °C
  • Mean temperature: 7.9 °C
  • Minimum temperature anomaly: -9.2 °C
  • Minimum temperature: 2.7 °C

Event center: 43.0°N 243.0°E

Area affected: 60442 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_2020-May-20_to_2020-May-24_243.0_43.0

Heat wave occuring from May 17 2020 to May 23 2020 at 51.0°N 260.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 7 days

Time span: May 17 2020 to May 23 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 7.3 °C
  • Mean temperature: 19.4 °C
  • Maximum temperature anomaly: 11.8 °C
  • Maximum temperature: 22.8 °C

Event center: 51.0°N 260.5°E

Area affected: 241635 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_2020-May-17_to_2020-May-23_260.5_51.0